CN101076666A - Air compressor control device - Google Patents
Air compressor control device Download PDFInfo
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- CN101076666A CN101076666A CNA2005800426361A CN200580042636A CN101076666A CN 101076666 A CN101076666 A CN 101076666A CN A2005800426361 A CNA2005800426361 A CN A2005800426361A CN 200580042636 A CN200580042636 A CN 200580042636A CN 101076666 A CN101076666 A CN 101076666A
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- air compressor
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
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- 239000012530 fluid Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 7
- 238000000354 decomposition reaction Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000001149 thermolysis Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
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- ORKBYCQJWQBPFG-WOMZHKBXSA-N (8r,9s,10r,13s,14s,17r)-13-ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one;(8r,9s,13s,14s,17r)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6h-cyclopenta[a]phenanthrene-3,17-diol Chemical compound OC1=CC=C2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1.O=C1CC[C@@H]2[C@H]3CC[C@](CC)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 ORKBYCQJWQBPFG-WOMZHKBXSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
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- 230000004913 activation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/05—Pressure after the pump outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/10—Inlet temperature
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Compressor (AREA)
Abstract
Controlling air compressors based on a temperature of air compressed by the air compressor. A temperature of air compressed by the air compressor is sensed. The sensed compressed air temperature is compared with a predetermined threshold temperature. The air compressor is deactivated when the sensed temperature exceeds the threshold temperature. The threshold temperature may be selected to inhibit carbon formation caused by oil thermal breakdown.
Description
Technical field
The present invention is broadly directed to the control gear of the air compressor in the internal-combustion engine, relates in particular to based on compressed air temperature to control the startup (activation) of air compressor and close (deactivation).
Background technique
Modern truck has the air compressor that is used to the air tank inflation, and the aerodynamic force system can draw air as footbrake, windshield, air suspension etc. from air tank.In typical truck transport purposes, air compressor can move in load or starting state in the most of the time.Now developed the system that reduces the time that starts air compressor.For example, now developed some systems, when the pressure in the storage tank drops to a predetermined value when following, these system start-up compressors, and when the pressure in the storage tank reaches another higher predetermined value, these system closing compressors.
People's such as Nishar U.S. Patent No. 6,036,449 has disclosed a kind of air compressor control device, the pressure in this air compressor control device monitoring storage tank and the head metal temperature of compressor.When the pressure of storage tank between two setting pressures and storage tank when being in the state of load, will set based on the time lag of compressor head metal temperature after air compressor is unloaded, remain in the suitable scope with critical temperature compressor head metal.In addition, compressor head is assessed,, made air compressor be in unloaded state, drop to below the predetermined critical temperature up to the compressor head temperature so that no matter when the compressor head temperature surpasses predetermined critical value.Control head metal temperature too much heats head avoiding.
Summary of the invention
The application relates to based on controlling air compressor by the temperature of the air of air compressor compression.In a method of control compressor, detect temperature by the air of air compressor compression.The compressed-air actuated temperature and the predetermined critical temperature that are detected are compared.When the temperature that is detected surpasses critical temperature, air compressor cuts out.In one embodiment, when the temperature that is detected surpasses critical temperature and the pressure of the storage tank that detected on critical pressure the time, air compressor cuts out.In one embodiment, forming with the carbon avoiding being caused by oil decomposition selected in critical temperature.
Can be in the compressed-air actuated temperature of a plurality of position probing.For example, can detect compressed-air actuated temperature at the compressor port, as relief opening or unloader valve port.Can in the pressurized chamber, detect compressed-air actuated temperature.In one embodiment, can detect compressed-air actuated temperature by the temperature transducer that is installed in the compressor uninstalling valve, this compressor uninstalling valve is communicated with pressurized chamber's fluid.
One is suitable for comprising housing, head, piston and temperature transducer based on the air compressor that compressed-air actuated temperature is controlled.Head is installed to housing, so that the fluid passage that head and housing limit the pressurized chamber and be communicated with this pressurized chamber.Piston is arranged in the pressurized chamber with the air in the compression pressurized chamber.The position of determining temperature transducer is to measure the temperature by the air of Piston Compression.In one embodiment, temperature transducer separates with head and housing in fact.
A kind of air compressor control device comprises input end, storage, processor and output terminal.Input end receives compressor air temperature signals.Memory storage compressor control algorithm.Processor with the compressor control algorithm application in compressor air temperature signals.When compressor air temperature signals surpassed the critical temperature signal value, processor provided the air compressor shutdown signal.Output terminal is communicated with the compressor shutdown signal, optionally to close controlled air compressor.Perhaps, control gear can comprise the discrete electronic device that does not have processor or storage.For example, control gear can comprise the temperature device integrated circuit and a voltage comparator device that input signal can be converted to voltage, and this voltage comparator device can be controlled output based on charge threshold level.
A kind of vehicle air supply system comprises storage tank, air compressor, temperature transducer and control gear.The pressurized air that reservoir stores is provided by compressor.The position of determining temperature transducer is to detect compressed-air actuated temperature.Control gear is connected to compressor.Control gear compares temperature and the predetermined critical temperature of detected air by air compressor compression, and closes air compressor during above critical temperature when detected temperature.In one embodiment, when the air pressure in storage tank surpassed critical temperature less than predetermined critical pressure and detected temperature, control gear started compressor.
Behind explanation below having considered, appending claims and the accompanying drawing, those of skill in the art will understand other advantage of the present invention and benefit.
Description of drawings
Fig. 1 is the schematic representation of vehicle air supply system;
Fig. 2 shows the flow chart based on the method for compressed air temperature control air compressor;
Fig. 3 is the schematic representation of vehicle air supply system;
Fig. 4 shows the flow chart based on the method for compressed air temperature and storage tank pressure control air compressor;
Fig. 5 is the compressor control schematic representation of apparatus;
Fig. 5 A is the compressor control schematic representation of apparatus;
Fig. 6 is the compressor schematic representation; And
Fig. 7 is the schematic representation of feather valve.
Embodiment
The present invention relates to based on the startup of compressed air temperature control air compressor 10 and close.Can in multiple different vehicle air supply system, realize the present invention.Fig. 1 shows the example of a this vehicle air supply system 12.
Shown air supply system 12 comprises air compressor 10, storage tank 16, regulator 18 and air drier 20.Air compressor 10 comprises housing 11, head 13 and piston 15.Head 13 is installed to housing 11 so that head and housing limit pressurized chamber 17.Piston 15 in pressurized chamber 17 to-and-fro motion to compress the air in the pressurized chamber with known mode.Compressor 10 can be driven by the vehicle crank shaft (not shown).Compressor 10 from source of the gas 22 as the engine intake admission of air.Compressor 10 pressurized air also provide pressurized air to storage tank 16.In being shown in the air system of Fig. 1, when the pressure in the storage tank 16 drops to predetermined minimum pressure when following, regulator 18 is in compressor 10 to start or load condition, and reaches when being scheduled to pressure maximum when the pressure in the storage tank 16, and regulator 18 is in compressor and cuts out or unloaded state.In being shown in the example of Fig. 1, regulator 18 makes compressor 10 be in unloaded state by air signal is provided to compressor unloading device 24.The compressor unloading device can adopt various form.For example, discharge mechanism 24 can be the mechanism that keeps inlet valve 25 to open, and perhaps can be the valve assembly 54 (shown in Fig. 6 and Fig. 7) that separates.
Fig. 2 shows based on the method for being controlled air compressor 10 by the air temperature of air compressor compression.To temperature T by the air of air compressor compression
ADetect 30.With detected compressed-air actuated temperature T
AWith predetermined critical temperature T
HCompare 32.If detected air temperature T
AGreater than predetermined critical temperature T
H, so compressor cuts out 34 or the unloading.If detected air temperature T
ALess than predetermined critical temperature T
H, allow so compressor start 36 or loading.
In an exemplary embodiment, with oil that compressor 10 is lubricated.For example, the oil of the motor of available Driven Compressor is lubricated with compressor 10.When engine oil was too warm, oil can decompose and can form carbon.The formation of carbon can damage compressor and or block pipeline 37 in the air supply system, as the pipeline between compressor 10 and storage tank 16.In one embodiment, set predetermined critical temperature T
HTo avoid the formation of carbon.In one example, predetermined critical temperature or pressurized air can be set in the scope of 325 to 400 Fahrenheits, this temperature records at the compressor outlet passage.For example, can be with predetermined critical temperature T
HBe set in 375 Fahrenheits, this temperature records at compressor outlet passage 46.
In one embodiment, compressor is remained on closed condition up to detected air temperature drop to be lower than predetermined than the lower boundary temperature T
LCritical temperature T
HWith than the lower boundary temperature T
LBetween difference avoid making compressor start and closed condition between Rapid Cycle.In one embodiment, in case detected compressed air temperature T
ADrop to and be lower than upper limit control temperature T
HJust allow compressor start.
Fig. 3 shows the compressor Control Cprant 40 of controlling compressor 10 in air supply system 12 based on compressed-air actuated temperature.Shown control circuit 40 comprises control gear 42, temperature transducer 44 and control valve 47.The position of determining temperature transducer 44 is to detect compressed-air actuated temperature.Temperature transducer 44 can be arranged on all places, so that the compressed-air actuated temperature that provides by compressor to be provided.In by the embodiment shown in Fig. 3, temperature transducer is arranged in the compressor outlet passage 46, to measure the compressed-air actuated temperature in the outlet port.Other example of the position of temperature transducer is included in the pressurized chamber 17, in exhaust port 50, in the pipeline 37 that compressor 10 is connected to storage tank 16 and in discharge mechanism valve 54 (Fig. 6).
In an exemplary embodiment, determine the position of temperature transducer 44, so that temperature transducer is isolated with the structure with big quality such as head 13 and housing 11 basically.Temperature transducer 44 is isolated the more accurate tolerance that compressed-air actuated temperature is provided with head 13 and housing 11 basically.If with temperature transducer and head 13 or housing 11 thermal couplings, temperature transducer 44 will detect the temperature of head or housing so, rather than compressed-air actuated temperature.Compressed-air actuated temperature can not be accurately and the temperature association of head 13 or housing 11.Head 13 and housing 11 have big thermal mass, raise after the substantial time period of the temperature of this thermal mass or reduction.Therefore, change the head cause owing to compressed air temperature or the variation of case temperature just has big delay.In addition, head and housing are cooled off by engine-cooling system usually.Engine-cooling system moves the temperature with the control motor usually, and irrelevant with compressed-air actuated temperature.Therefore, have nothing to do by the head of engine-cooling system control or the temperature and the compressed-air actuated temperature of housing.Like this, can not obtain the accurate estimation of compressed air temperature by the temperature of measuring head 13 or housing 11.Temperature transducer 44 detects compressed-air actuated temperature and the signal of the detected temperature of expression is provided to control gear 42.
Referring to Fig. 3, shown control valve 47 comprises import 54 that is connected to storage tank 16 and the outlet that is connected to discharge mechanism 24.42 pairs of control valves 47 of control gear are controlled optionally air signal is communicated to discharge mechanism from storage tank 16, optionally compressor 10 cuts out.For example, surpass predetermined critical temperature T when detected temperature
HSo that compressor is when being in unloaded state, control gear can be opened control valve to provide air signal to discharge mechanism.When detected temperature is lower than predetermined critical temperature and is in load condition to allow compressor, but the control gear closed control valve.In one embodiment, control valve is the valve that solenoid is controlled.
In shown embodiment, pass control valve 47 from storage tank 16 and be parallel to from storage tank 16 to the path of discharge mechanism 24 and pass the path of regulator 18 to discharge mechanism.Therefore, when detected compressed-air actuated temperature under the control of control gear 42 surpassed predetermined critical temperature, control valve 46 can be operated to close with regulator 18 bypasses and with compressor 10.
In one embodiment, as the air pressure P in storage tank 16
RLess than predetermined minimum pressure P
LAnd detected temperature T
ASurpass critical temperature T
HThe time, air compressor 10 is started.In example illustrated in fig. 3, the pressure that pressure transducer 60 detects in the storage tank 16.Pressure transducer 60 provides signal to control gear 42.In this embodiment, when compressed-air actuated temperature on the predetermined critical temperature and storage tank pressure on predetermined minimum pressure the time, control gear 42 close compressor 10.In this embodiment, when compressed-air actuated temperature T
AAt predetermined critical temperature T
HOn and the storage tank pressure P
RWhen being lower than predetermined pressure minimum, control gear 42 is close compressor 10 not.Be lower than predetermined pressure minimum P with regard to keeping the interior pressure of storage tank to drop to like this
LThe predetermined minimum pressure of being set by control gear 42 can be different from the predetermined minimum pressure of being set by regulator 18.
Fig. 4 shows the method based on compressed air temperature and storage tank pressure control air compressor.In method shown in Figure 4, compressor control temperature T on 70 is set
HWith lower compression machine control temperature T
LAnd last storage tank pressure P
HWith following storage tank pressure P
LFor example, compressor control temperature and pressure can read from storage.In an exemplary embodiment, to last compressor control temperature T
HSelect avoiding the formation of carbon, and control temperature T down
LCorresponding with acceptable compressed-air actuated temperature.For example, control temperature T on
HWith following control temperature T
LCan be respectively 375 Fahrenheits and 325 Fahrenheits, these temperature are measured in the outlet 46 of air compressor 10.Last compressor control pressure P
HCan be corresponding with working pressure on the safety of storage tank, and can select down pilot pressure P
LTo guarantee in storage tank, having enough air to operate the aerodynamic force system.In one embodiment, at first state (start or close) is being determined or be provided with.Compressor 10 can be provided with at first 72 and be opening state.After initial temperature and pressure control value were set, the time delay that compressor control ring 74 repeats to be scheduled at every turn passed.In the compressor control ring, detection 76 is by the temperature of the air of air compressor compression.The compressed-air actuated pressure of detection 78 in storage tank.With temperature and the last control temperature T that is detected
HCompare 80, and with the pressure and following pilot pressure P that are detected
LCompare 82,83.When the pressure that is detected less than following pilot pressure P
LAnd during the temperature of not considering to be detected, start 84,85 air compressors.When the temperature that is detected surpasses last control temperature T
HAnd the pressure that is detected is at following pilot pressure P
LOn the time, close 86 air compressors.If temperature T
ALess than last control temperature T
HAnd pressure P
RGreater than following pilot pressure P
L, so with pressure P
RWith last pilot pressure P
HCompare 87.If pressure P
RGreater than last pilot pressure P
H, so just close 88 compressors 10.If pressure P
RLess than last pilot pressure P
H, so compressor is remained on its current state (open or close).Control ring is repeated to control the opening and closing of compressor.In one embodiment, method shown in Figure 4 is finished by regulator and electric control device.In another embodiment, method shown in Figure 4 is finished by the control gear of processing pressure and temperature signal.In this embodiment, can not use regulator.
In an embodiment of method shown in Figure 4, in case compressor cuts out, then with start delay with avoid start and closed condition between Rapid Cycle.For example, if compressor cuts out, the start delay of compressor can be reached pilot pressure P down up to the pressure that is detected so owing to the compressed-air actuated temperature of the rising that is detected
LEven the compressed-air actuated temperature that is detected may drop to and be lower than control temperature T down
L
Fig. 5 is the schematic representation of control gear 42, and control gear 42 can be used for based on controlling compressor by the temperature of the air of compressor compresses.For example, can use control gear to finish Fig. 2 and method shown in Figure 4.Illustrated control gear 42 comprises input end 90, storage 92, processor 94 and output terminal 96 in the example of Fig. 5.Input end 90 receives compressor air temperature signals 98 and or reservoir pressure signals 100.Storage 92 stores compressor control algorithm and predetermined value, as above controls temperature value and controls temperature value and or upper and lower down.The example of compressor control algorithm is illustrated by Fig. 2 and Fig. 4.Processor 94 with the compressor control algorithm application in compressor air temperature signals and or reservoir pressure signals to produce output signal 102.In being shown in the embodiment of Fig. 6, provide output signal 102 (Fig. 3) to control valve 46 from control gear output terminal 96.The example of output signal 102 comprises air compressor actuating signal that causes compressor start and the air compressor shutdown signal that causes compressor to be closed.
Fig. 5 A shows another example of control gear 42 '.Control gear 42 ' comprises input end 103 from thermal coupling or other temperature measuring equipment, temperature voltage converter device 105, from the input end 104 and the pressure voltage converter component 106 of pressure transducer or other manometer.Input end 103 receives compressor air temperature signals 98.Input end 104 receives reservoir pressure signals 100.Temperature voltage converter device 105 is converted to voltage signal 109 with compressor air temperature signals.Pressure voltage converter component 106 is converted to voltage signal 110 with reservoir pressure signals.When the voltage signal that is offered voltage comparator 107 by electric pressure converter was outside critical limits, voltage comparator 107 provided shutdown signal 111.
Referring to Fig. 6 and Fig. 7, in one embodiment, detect by the temperature transducers 44 that are installed in the discharge mechanism valve assembly 54 by the temperature of the air of air compressor 10 compression, discharge mechanism valve assembly 54 is communicated with pressurized chamber's 17 fluids.Shown discharge mechanism valve assembly 54 comprises fixed component 112, movable member 114 and biasing member 116, as spring.Biasing member 116 leaves fixed component with movable member 114 biasings and engages with valve seat 118.When movable member 114 engaged with valve seat 118, the unloader passage 120 of passing head 13 is closed and compressor 10 is in opening state.The air control signal by regulator and or control valve 46 optionally be communicated with the control port 120 of discharge mechanism valve assembly 54.When the air control signal was applied to the discharge mechanism valve assembly, movable member 114 was promoted and the disengaging valve seat by the air control signal under the effect of the added power of biasing member.When movable member 14 did not engage with valve seat 118, unloader passage 120 was opened and compressor 10 is in closed condition.
In being shown in the example of Fig. 7, movable member 114 is included in the opening 122 of cavity 124.Fixed component 112 extends into cavity 124.Air pressure contractd push cavity 124 and around fixed component 112.In being illustrated in 7 example, temperature transducer 44 is installed to fixed component in the cavity 124.For example, can be provided with the hole 126 of passing fixed component and with temperature transducer 44 by hole 126 and be positioned at the end 128 of fixed component.Temperature transducer 44 located in the discharge mechanism valve assembly temperature transducer determined in the position that is in close proximity to pressurized chamber 17 and temperature transducer is isolated with big heat sink device such as housing and head basically.This accurate tolerance that is in close proximity to the pressurized chamber and the pressurization indoor air temperature is provided with head and housing isolation basically.In addition, owing to being in close proximity to the pressurized chamber and isolating, so the variation of the air temperature in the pressurized chamber is by temperature transducer 44 fast detecting with housing 11 and head 13.
Though by invention has been described with reference to specific embodiment, those of skill in the art can understand can substitute the present invention, modifications and variations.Therefore, the present invention is intended to contain that all these substitute, modifications and variations, and these substitute, modifications and variations are within the spirit and scope of appending claims.
Claims (33)
1. method of controlling air compressor, described method comprises:
A) detection is by the temperature of the air of air compressor compression;
B) compressed-air actuated temperature that is detected and the critical temperature of being scheduled to are compared;
C) when the temperature that is detected surpasses described critical temperature, described air compressor cuts out.
2. the method for claim 1 is characterized in that: in the compressor port temperature by the described air of described air compressor compression is detected.
3. the method for claim 1 is characterized in that: in the pressurized chamber temperature by the described air of described air compressor compression is detected.
4. the method for claim 1 is characterized in that: can detect temperature by the described air of described air compressor compression by being installed in temperature transducer in the compressor uninstalling valve, described compressor uninstalling valve is communicated with pressurized chamber's fluid.
5. the method for claim 1 is characterized in that: forming with the carbon avoiding being caused by oil decomposition selected in described critical temperature.
6. the method for claim 1 is characterized in that: by regulator bypass being closed described air compressor.
7. the method for claim 1 is characterized in that: when described detected temperature surpasses described critical temperature, close described air compressor by cut-out air control signal is provided to described compressor.
8. device that is used to detect by the temperature of the air of air compressor compression, described device comprises:
A) valve member, described valve member are used for optionally opening and closing the passage that leads to the pressurized chamber; And
B) temperature transducer, described temperature transducer are by the device support of described valve member and be used for detecting the temperature of the air of described valve member.
9. device as claimed in claim 8 is characterized in that: described valve member is a discharge mechanism control valve assembly.
10. air compressor comprises:
A) housing;
B) head, described head is installed to described housing, so that the fluid passage that described head and described housing limit the pressurized chamber and be communicated with described pressurized chamber;
C) piston, described piston are arranged in the described pressurized chamber to compress the air in the described pressurized chamber; And
D) temperature transducer is located described temperature transducer to measure the temperature by the air of described Piston Compression.
11. air compressor as claimed in claim 10 is characterized in that: described temperature transducer is isolated with described head and described housing basically.
12. air compressor as claimed in claim 10 is characterized in that: described temperature transducer is arranged in the described fluid passage.
13. air compressor as claimed in claim 10 is characterized in that: also comprise the valve member that is arranged in the described fluid passage, described temperature transducer is by the device support of described valve member.
14. air compressor as claimed in claim 10 is characterized in that: also comprise the discharge mechanism control valve assembly that is arranged in the described fluid passage, described temperature transducer is by the device support of described discharge mechanism valve member.
15. an air compressor control device, described air compressor control device comprises:
A) input end, described input end is used to receive compressor air temperature signals;
B) comparator device, described comparator device are used for described air temperature signal and critical temperature signal value are compared;
C) output terminal, described output terminal provide the air compressor shutdown signal when described compressor air temperature signals surpasses described critical temperature signal value.
16. air compressor control device as claimed in claim 15 is characterized in that: described comparator device is limited by microprocessor circuit.
17. air compressor control device as claimed in claim 15 is characterized in that: described comparator device comprises temperature voltage converter device and voltage comparator.
18. an air compressor control device, described air compressor control device comprises:
A) input end, described input end is used to receive compressor air temperature signals;
B) storage, described storage is used to store the compressor control algorithm;
C) processor, described processor are used for described compressor control algorithm application in described compressor air temperature signals, and when described compressor air temperature signals surpassed described critical temperature signal value, described processor provided the air compressor shutdown signal;
D) output terminal, described output terminal are used for being communicated with described compressor shutdown signal, to close described compressor.
19. control gear as claimed in claim 18 is characterized in that: forming with the carbon avoiding being caused by oil decomposition selected in described critical temperature.
20. a control gear that is used for air compressor comprises:
A) input end, described input end is used to receive compressor air temperature signals;
B) input end, described input end are used to receive storage tank air pressure signal;
C) temperature voltage converter device, described temperature voltage converter device is converted to voltage signal with compressor air temperature signals;
D) pressure voltage converter component, described pressure voltage converter component is a voltage signal with the air pressure signal conversion; And
E) voltage comparator device, when the voltage signal that is offered described voltage comparator by described temperature voltage converter device and described pressure voltage converter component was outside critical limits, described voltage comparator device provided shutdown signal.
21. a method of controlling air compressor, described method comprises:
A) the compressed-air actuated pressure in the detection storage tank;
B) compressed-air actuated pressure in the storage tank that is detected and the critical pressure of being scheduled to are compared;
C) when the pressurized air in the described storage tank during, described air compressor cuts out less than described critical pressure;
D) detection is by the temperature of the air of described air compressor compression;
E) with comparing of being detected by the temperature of the air of described air compressor compression and predetermined critical temperature; And
F) surpass described critical temperature and work as the described pressure that is detected when being higher than described critical pressure when the temperature that is detected, described air compressor cuts out.
22. method as claimed in claim 21, it is characterized in that: also comprise in the described storage tank that will be detected compressed-air actuated pressure with compare greater than the expectant control pressure of described critical pressure, and work as the temperature that detected and surpass described critical temperature and work as the described pressure that is detected when being higher than described critical pressure, described air compressor cuts out.
23. method as claimed in claim 21 is characterized in that: in the compressor outlet port, the temperature by the air of described air compressor compression is detected.
24. method as claimed in claim 21 is characterized in that: in the pressurized chamber, the temperature by the air of described air compressor compression is detected.
25. method as claimed in claim 21 is characterized in that: can detect temperature by the described air of described air compressor compression by being installed in temperature transducer in the compressor uninstalling valve, described compressor uninstalling valve is communicated with pressurized chamber's fluid.
26. method as claimed in claim 21 is characterized in that: forming with the carbon avoiding being caused by oily thermolysis selected in described critical temperature.
27. an air compressor control device comprises:
A) input end, described input end is used to receive compressor air temperature signals and reservoir pressure signals;
B) storage, described storage is used to store the compressor control algorithm;
C) processor, described processor is used for described compressor control algorithm application in described compressor air temperature signals and described reservoir pressure signals, the pressurized air of described processor in described storage tank provides the air compressor actuating signal during less than predetermined critical pressure, and surpasses described critical temperature and the described pressure that detected provides the air compressor actuating signal when being higher than described critical pressure in the temperature that is detected; And
D) output terminal, described output terminal are used for being communicated with described compressor start signal and described compressor shutdown signal, to control described compressor.
28. control gear as claimed in claim 27 is characterized in that: forming with the carbon avoiding being caused by oil decomposition selected in described critical temperature.
29. a vehicle air supply system comprises:
A) storage tank, described storage tank is used for storing compressed air;
B) air compressor, described air compressor is communicated with described storage tank fluid, to provide pressurized air to described storage tank;
C) temperature transducer is located described temperature transducer to detect described compressed-air actuated temperature;
D) control gear, described control gear is connected to described air compressor, described control gear compares temperature and the predetermined critical temperature of detected air by the compression of described air compressor, and closes described air compressor during above described critical temperature when detected temperature.
30. system as claimed in claim 29 is characterized in that: when the air pressure in described storage tank surpassed described critical temperature less than predetermined critical pressure and detected temperature, described control gear started described air compressor.
31. system as claimed in claim 29, it is characterized in that: also comprise the control valve that is connected to the compressor unloading device, described control gear is controlled optionally air signal is applied to described compressor unloading device described control valve, optionally closes described compressor.
32. an air compressor control device comprises:
A) input device, described input device is used to receive compressor air temperature signals;
B) storage device, described storage device is used to store the compressor control algorithm;
C) treatment device, described treatment device are used for described compressor control algorithm application in described compressor air temperature signals, and described processor provides the air compressor shutdown signal when described compressor air temperature signals surpasses described critical temperature signal value;
D) output unit, described output unit are used for being communicated with described compressor shutdown signal, to close described compressor.
33. an air compressor, described air compressor comprises:
A) compression set, described compression set is used for pressurized air; And
B) detection device, described detection device are used to detect the temperature by the air of described compression set compression.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/010,851 | 2004-12-13 | ||
| US11/010,851 US20060127224A1 (en) | 2004-12-13 | 2004-12-13 | Air compressor control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101076666A true CN101076666A (en) | 2007-11-21 |
Family
ID=35789245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800426361A Pending CN101076666A (en) | 2004-12-13 | 2005-10-11 | Air compressor control device |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US20060127224A1 (en) |
| CN (1) | CN101076666A (en) |
| AU (1) | AU2005317079A1 (en) |
| CA (1) | CA2583717A1 (en) |
| DE (1) | DE112005003016T5 (en) |
| MX (1) | MX2007005442A (en) |
| WO (1) | WO2006065333A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103657A (en) * | 2019-03-21 | 2019-08-09 | 清科智能悬架系统（苏州）有限公司 | A kind of control method of two-way air compressor |
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| US7617031B2 (en) * | 2005-06-23 | 2009-11-10 | Gm Global Technology Operations, Inc. | Series arranged air compressors system |
| US20070188013A1 (en) * | 2006-02-16 | 2007-08-16 | Hoffman Fred W | Hydraulically powered air charging arrangement |
| KR20090090607A (en) * | 2008-02-21 | 2009-08-26 | 주식회사 현대오토넷 | Wiper Washer Controls and Methods |
| US8849604B2 (en) * | 2011-05-24 | 2014-09-30 | Clark Equipment Company | Method for calculating the probability of moisture build-up in a compressor |
| US9205925B2 (en) * | 2011-11-11 | 2015-12-08 | Hamilton Sundstrand Corporation | Turbo air compressor |
| EP2708429B1 (en) * | 2012-09-12 | 2015-08-26 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Compressed air system for a motor vehicle |
| US9266515B2 (en) * | 2014-03-05 | 2016-02-23 | Bendix Commercial Vehicle Systems Llc | Air dryer purge controller and method |
| US10379143B2 (en) | 2014-07-23 | 2019-08-13 | Cummins, Inc. | System and method for improving a battery management and accumulator system |
| WO2016032964A1 (en) * | 2014-08-26 | 2016-03-03 | Cummins, Inc. | Electric engine accessory control |
| CN106930931B (en) * | 2017-03-17 | 2018-09-11 | 安徽江淮汽车集团股份有限公司 | A kind of electric air compressor control system and its control method |
| US11156394B2 (en) * | 2018-02-27 | 2021-10-26 | Johnson Controls Technology Company | Systems and methods for pressure control in a heating, ventilation, and air conditioning (HVAC) system |
| US11208994B2 (en) * | 2019-02-15 | 2021-12-28 | Caterpillar Inc. | Air compressor system control |
| JP7384860B2 (en) * | 2021-06-28 | 2023-11-21 | 本田技研工業株式会社 | Depressurization system and method |
| US12270393B2 (en) * | 2022-08-22 | 2025-04-08 | Bendix Commercial Vehicle Systems Llc | Providing backpressure for electric compressor |
| DE102023112214A1 (en) * | 2023-05-10 | 2024-11-14 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Pneumatic system for a vehicle, method for controlling and/or regulating, compressor system and vehicle |
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| US2254570A (en) * | 1939-10-28 | 1941-09-02 | Robert W Hailey | Cooking vessel cover assembly |
| US3860363A (en) * | 1973-05-10 | 1975-01-14 | Chicago Pneumatic Tool Co | Rotary compressor having improved control system |
| IT1103276B (en) * | 1977-05-25 | 1985-10-14 | Hydrovane Compressor | OIL SEAL CAPSULISING COMPRESSOR |
| US4526513A (en) * | 1980-07-18 | 1985-07-02 | Acco Industries Inc. | Method and apparatus for control of pipeline compressors |
| US4575262A (en) * | 1983-11-22 | 1986-03-11 | Anderstat Controls | Temperature indicator for a fluid fixture |
| US4974427A (en) * | 1989-10-17 | 1990-12-04 | Copeland Corporation | Compressor system with demand cooling |
| SE9400575L (en) * | 1994-02-18 | 1995-08-19 | Volvo Ab | Device for charging air systems on trucks |
| US5713724A (en) * | 1994-11-23 | 1998-02-03 | Coltec Industries Inc. | System and methods for controlling rotary screw compressors |
| US5846056A (en) * | 1995-04-07 | 1998-12-08 | Dhindsa; Jasbir S. | Reciprocating pump system and method for operating same |
| US5885060A (en) * | 1996-06-03 | 1999-03-23 | Westinghouse Air Brake Company | Thermostatically controlled intercooler system for a multiple stage compressor and method |
| US5592754A (en) * | 1996-06-07 | 1997-01-14 | Alliedsignal Truck Brake Systems Co. | Electronic control of compressor unloader and air dryer purge |
| SE507152C2 (en) * | 1996-08-22 | 1998-04-06 | Volvo Lastvagnar Ab | Device and method for controlling air compressor |
| US5967757A (en) * | 1997-03-24 | 1999-10-19 | Gunn; John T. | Compressor control system and method |
| US6062026A (en) * | 1997-05-30 | 2000-05-16 | Turbodyne Systems, Inc. | Turbocharging systems for internal combustion engines |
| DE19801395B4 (en) * | 1998-01-16 | 2005-12-22 | Daimlerchrysler Ag | Device for boost pressure control and exhaust gas recirculation control in an internal combustion engine, in particular a diesel engine |
| US6036449A (en) * | 1998-03-24 | 2000-03-14 | Cummins Engine Company, Inc. | Air compressor control |
| US6120107A (en) * | 1998-04-21 | 2000-09-19 | Meritor Heavy Vehicle Systems, Llc | Compressor and air dryer control system |
| US5967285A (en) * | 1998-10-16 | 1999-10-19 | New Venture Gear, Inc. | Multi-function control valve for hydraulic coupling |
| US6379122B1 (en) * | 1999-11-10 | 2002-04-30 | Ingersoll-Rand Company | System and method for automatic thermal protection of a fluid compressing system |
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| US6454538B1 (en) * | 2001-04-05 | 2002-09-24 | Scroll Technologies | Motor protector in pocket on non-orbiting scroll and routing of wires thereto |
| US20030077179A1 (en) * | 2001-10-19 | 2003-04-24 | Michael Collins | Compressor protection module and system and method incorporating same |
| US6539734B1 (en) * | 2001-12-10 | 2003-04-01 | Carrier Corporation | Method and apparatus for detecting flooded start in compressor |
| US6681171B2 (en) * | 2001-12-18 | 2004-01-20 | Detroit Diesel Corporation | Condensation control for internal combustion engines using EGR |
| US7118348B2 (en) * | 2003-03-06 | 2006-10-10 | General Electric Company | Compressed air system and method of control |
-
2004
- 2004-12-13 US US11/010,851 patent/US20060127224A1/en not_active Abandoned
-
2005
- 2005-10-11 MX MX2007005442A patent/MX2007005442A/en not_active Application Discontinuation
- 2005-10-11 AU AU2005317079A patent/AU2005317079A1/en not_active Abandoned
- 2005-10-11 WO PCT/US2005/037009 patent/WO2006065333A1/en active Application Filing
- 2005-10-11 DE DE112005003016T patent/DE112005003016T5/en not_active Withdrawn
- 2005-10-11 CN CNA2005800426361A patent/CN101076666A/en active Pending
- 2005-10-11 CA CA002583717A patent/CA2583717A1/en not_active Abandoned
-
2008
- 2008-07-24 US US12/178,735 patent/US20080292471A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103657A (en) * | 2019-03-21 | 2019-08-09 | 清科智能悬架系统（苏州）有限公司 | A kind of control method of two-way air compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| US20080292471A1 (en) | 2008-11-27 |
| CA2583717A1 (en) | 2006-06-22 |
| MX2007005442A (en) | 2007-09-27 |
| US20060127224A1 (en) | 2006-06-15 |
| AU2005317079A1 (en) | 2006-06-22 |
| WO2006065333A1 (en) | 2006-06-22 |
| DE112005003016T5 (en) | 2007-10-31 |
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