CN113389624A - Wankel engine and high-temperature water spraying based tail gas waste heat recovery efficient engine structure - Google Patents
Wankel engine and high-temperature water spraying based tail gas waste heat recovery efficient engine structure Download PDFInfo
- Publication number
- CN113389624A CN113389624A CN202110653541.4A CN202110653541A CN113389624A CN 113389624 A CN113389624 A CN 113389624A CN 202110653541 A CN202110653541 A CN 202110653541A CN 113389624 A CN113389624 A CN 113389624A
- Authority
- CN
- China
- Prior art keywords
- engine
- pressure water
- sensor
- pressure
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 154
- 239000007789 gas Substances 0.000 title claims abstract description 49
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 239000002918 waste heat Substances 0.000 title claims abstract description 21
- 238000005507 spraying Methods 0.000 title claims abstract description 11
- 241000532345 Rallus aquaticus Species 0.000 claims abstract description 40
- 230000008878 coupling Effects 0.000 claims abstract description 14
- 238000010168 coupling process Methods 0.000 claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 238000012805 post-processing Methods 0.000 claims description 22
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 239000007921 spray Substances 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 210000003437 trachea Anatomy 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008215 water for injection Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
- F02B41/02—Engines with prolonged expansion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B73/00—Combinations of two or more engines, not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention provides a Wankel engine and high-temperature water spraying based tail gas waste heat recovery efficient engine structure. The engine structure comprises an internal combustion engine body, an air inlet pipe, an exhaust pipe, a heat exchanger, a condenser, a temperature sensor, a flow sensor, a pressure sensor, a Wankel engine, a high-pressure water pump, a high-pressure water rail, a high-pressure water nozzle, a three-way valve, a one-way valve, a hydraulic valve and a controller. According to the engine structure, the exhaust pipe is provided with the heat exchanger and the condenser, the tail gas waste heat recovery of water heating is realized in a water circulation state, meanwhile, the exhaust pipe structure is redesigned, so that the hot tail gas and high-pressure high-temperature water jointly drive the Wankel engine to work, the crankshaft of the Wankel engine and the crankshaft of the internal combustion engine output torque outwards through the power coupling device to do work, the efficient recycling of the tail gas waste heat can be realized, and the heat efficiency of the engine is greatly improved.
Description
Technical Field
The invention relates to the technical field of power driving, in particular to a Wankel engine and high-temperature water spraying based tail gas waste heat recovery efficient engine structure.
Background
Environmental protection is always a problem that the automobile industry cannot avoid. The traditional internal combustion engine automobile is still the most mainstream product in the automobile consumer market in China. The automotive industry, which uses engines as the primary power source, consumes a large amount of fossil energy in our country. As one of important factors, the motor vehicle industry causes the continuous improvement of the external dependence of petroleum in China, and reaches 69.8% by 2018, which seriously affects the energy structure safety in China. In order to deal with the problem of energy consumption associated with the work of the engine, the government of China gives high attention to the development of energy-saving automobile technology capable of greatly improving the heat efficiency of the engine and reducing the fuel consumption rate, and issues a plurality of outline documents in sequence to reconstruct and adjust the technology of the power source of the automobile industry. However, the efficiency of the existing engine is only about 38%, and most of energy is wasted as exhaust waste heat which is discharged to the atmosphere.
Therefore, it is highly desirable to develop an efficient engine structure to improve the energy consumption of internal combustion engines.
Disclosure of Invention
The invention aims to provide a Wankel engine and a high-temperature water spray based tail gas waste heat recovery efficient engine structure, and aims to solve the problems in the prior art.
The technical scheme adopted for achieving the purpose of the invention is that the Wankel engine and high-temperature water injection based exhaust gas waste heat recovery efficient engine structure comprises a heat exchanger, a three-way valve, a condenser, a Wankel engine, a plurality of high-pressure water nozzles, a controller, a high-pressure water rail and an engine body.
And an air inlet pipe I and an exhaust pipe I are respectively arranged on two sides of the upper end of the engine body. And a flow sensor I is arranged on the pipeline of the air inlet pipe I. A temperature sensor I, a heat exchanger, a temperature sensor II, a three-way valve and a condenser are sequentially arranged on a pipeline of the exhaust pipe I. The tail end of the exhaust pipe I is further provided with a post-processing device. The engine exhaust passes through an after-treatment device before being discharged to the environment. And a post-processing device working state sensor is arranged in the post-processing device. And the post-processing device working state sensor is electrically connected with the controller. And a high-pressure water pipe is arranged between the heat exchanger and the condenser. And a high-pressure water pump is arranged on the pipeline of the high-pressure water pipe.
The wankel engine has a crankshaft coupled with a crankshaft of an engine block by a power coupling device. The operating torque of the wankel engine is transmitted to a crankshaft of an engine body through a power coupling device. And a rotating speed sensor is mounted on the crankshaft of the Wankel engine. And an air inlet pipe II of the Wankel engine is communicated with an air outlet pipe I through a three-way valve. And a flow sensor II is arranged on an air inlet pipe II of the Wankel engine. And an exhaust pipe II and an exhaust pipe I of the Wankel engine are communicated with a part between the three-way valve and the condenser. And a check valve is arranged on the exhaust pipe II.
The high-pressure water nozzle is installed on a Wankel engine body. The high-pressure water nozzle is connected with the high-pressure water rail through a high-pressure water pipe. The heat exchanger is connected with a high-pressure water rail through a high-pressure water pipe. And a temperature sensor III and a pressure sensor are arranged on the high-pressure water rail.
The flow sensor I, the temperature sensor II, the three-way valve, the high-pressure water pump, the flow sensor II, the high-pressure water nozzle, the temperature sensor III, the pressure sensor and the rotating speed sensor are all electrically connected with the controller. The flow sensor I, the temperature sensor II, the flow sensor II, the temperature sensor III, the pressure sensor and the rotating speed sensor acquire working state data and transmit the data to the controller. Wherein, flow sensor I gathers the air input data Q1 of intake pipe I. And the flow sensor II acquires air inflow data Q2 of the air inlet pipe II. The temperature sensor I collects a first temperature T1 of the tail gas of the engine. And the temperature sensor II acquires a second temperature T2 of the tail gas of the engine. And the temperature sensor III acquires water temperature data T3 of the high-pressure water rail. The pressure sensor collects water pressure data P1 of the high pressure water rail. The rotational speed sensor collects wankel engine rotational speed data n 1. When the device works, the controller adjusts the valve channel switching of the three-way valve and the injection strategy of the high-pressure water nozzle according to the working state data.
Furthermore, the three-way valve receives a control signal of the controller to perform valve channel conversion. The three-way valve is configured to:
during the first mode, the exhaust pipe i starts to discharge engine exhaust gas. The three-way valve is located at the working position of the straight-through exhaust pipe. The engine exhaust flows through the condenser via exhaust pipe i. And the controller judges whether the post-processing device is ignited or not according to the data acquired by the post-processing device working state sensor. If the aftertreatment device does not operate normally on ignition, the first mode is maintained. And if the aftertreatment device is started normally, the aftertreatment device enters a second mode.
During the second mode, the three-way valve is in a straight-through wankel engine operating position. The engine exhaust flows into the Wankel engine cylinder through an exhaust pipe and an air inlet pipe II.
Further, the working state sensor of the post-processing device acquires relevant state parameters including the temperature, the oxygen concentration and the flow of the post-processing device.
Further, the working state data is input to the controller through a CAN communication protocol.
Furthermore, a hydraulic valve is arranged on a pipeline between the high-pressure water rail and the heat exchanger.
Further, the high-pressure water pump pressurizes the condensed water from the condenser to 15-40 MPa.
Further, the controller adjusts the water spray timing of the high pressure water nozzles, the water spray sequence of each high pressure water nozzle, and the water spray pulse width.
Further, the high-pressure water pump is disposed in a trunk or an engine compartment of the automobile.
The invention also discloses a method for operating the engine structure, wherein water vapor in the tail gas of the engine is converted into liquid condensate after being recovered by the condenser. The condensed water is pressurized and heated by the high-pressure water pump and the heat exchanger and then stored in the common rail cavity of the high-pressure water rail. The controller sends a control signal to the three-way valve. The three-way valve performs action to perform valve channel conversion and provides air inlet for the Wankel engine. The wankel engine begins to run. The high-pressure water rail transmits the water for injection to the high-pressure water nozzle after eliminating pressure fluctuation in the water for injection. The controller adjusts the injection strategy of the high pressure water nozzle. The high-pressure water nozzle injects high-pressure and high-temperature water into the cylinder of the wankel engine. The high-temperature tail gas and the high-pressure high-temperature water jointly drive the Wankel engine to work. The crankshaft of the Wankel engine is coupled with the crankshaft of the engine body through the power coupling device, and the Wankel engine and the crankshaft of the engine body output torque together to do work, so that the waste heat of the tail gas is recovered.
The invention also discloses a vehicle system which comprises any one of the engine structures.
The technical effects of the invention are undoubted:
A. through a water circulation system consisting of the condenser, the heat exchanger, the high-pressure water pump, the high-pressure water rail and the high-pressure water nozzle, the waste heat energy of the exhaust pipe tail gas is recycled while the water is recycled, so that the heat efficiency of the engine is improved;
B. through the redesign of an engine exhaust pipe and the addition of the Wankel engine, the hot tail gas flows through the Wankel engine and drives the Wankel engine to work to recover the waste heat energy in the hot tail gas, and the crankshaft external output torque of the engine is increased;
C. through the setting of three-way valve and check valve, two kinds of mode of blast pipe have been realized: the post-treatment device has a combustion starting working mode and a tail gas waste heat energy recovery working mode.
Drawings
FIG. 1 is a schematic diagram of an engine configuration;
fig. 2 is a control flowchart of the engine structure.
In the figure: the system comprises an air inlet pipe I1, a flow sensor I2, an exhaust pipe 3, a temperature sensor I4, a heat exchanger 5, a temperature sensor II 6, a three-way valve 7, a high-pressure water pump 8, a condenser 9, a one-way valve 10, a flow sensor II 11, a Wankel engine 12, a high-pressure water nozzle 13, a controller 14, a high-pressure water rail 15, a hydraulic valve 16, a temperature sensor III 17, a pressure sensor 18 and an engine body 19.
Detailed Description
The present invention is further illustrated by the following examples, but it should not be construed that the scope of the above-described subject matter is limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
referring to fig. 1, the present embodiment provides an exhaust gas waste heat recovery efficient engine structure based on a wankel engine and high temperature water injection, including a heat exchanger 5, a three-way valve 7, a condenser 9, a wankel engine 12, a plurality of high pressure water nozzles 13, a controller 14, a high pressure water rail 15, and an engine body 19.
And an air inlet pipe I1 and an exhaust pipe I3 are respectively arranged on two sides of the upper end of the engine body 19. A flow sensor I2 is arranged on a pipeline of the air inlet pipe I1. The pipeline of the exhaust pipe I3 is sequentially provided with a temperature sensor I4, a heat exchanger 5, a temperature sensor II 6, a three-way valve 7 and a condenser 9. The tail end of the exhaust pipe I3 is further provided with a post-processing device. The engine exhaust passes through an after-treatment device before being discharged to the environment. And a high-pressure water pipe is arranged between the heat exchanger 5 and the condenser 9. And a high-pressure water pump 8 is arranged on the pipeline of the high-pressure water pipe. The high-pressure water pump 8 is arranged in the trunk or in the engine compartment of the vehicle. The high-pressure water pump 8 pressurizes the condensed water from the condenser 9 to 15-40 MPa.
The wankel engine 12 has its crankshaft coupled to the crankshaft of the engine block 19 by a power coupling device. The steady operating torque of the wankel engine 12 may be transferred to a crankshaft of the engine block 19 via a power coupling. A rotational speed sensor is mounted on the wankel engine 12 crankshaft. And an air inlet pipe II of the Wankel engine 12 is communicated with an air outlet pipe I3 through a three-way valve 7. And a flow sensor II 11 is arranged on an air inlet pipe II of the Wankel engine 12. The exhaust pipe II of the Wankel engine 12 is communicated with the part of the exhaust pipe I3 between the three-way valve 7 and the condenser 9. And a check valve 10 is arranged on the exhaust pipe II.
The high-pressure water nozzle 13 is mounted on the wankel engine 12. The high-pressure water nozzle 13 is connected to a high-pressure water rail 15 via a high-pressure water pipe. The heat exchanger 5 is connected to a high-pressure water rail 15 via a high-pressure water line. A hydraulic valve 16 is arranged on a pipeline between the high-pressure water rail 15 and the heat exchanger 5. And a temperature sensor III 17 and a pressure sensor 18 are mounted on the high-pressure water rail 15.
The flow sensor I2, the temperature sensor I4, the temperature sensor II 6, the three-way valve 7, the high-pressure water pump 8, the flow sensor II 11, the high-pressure water nozzle 13, the hydraulic valve 16, the temperature sensor III 17, the pressure sensor 18 and the rotating speed sensor are all electrically connected with the controller 14. The flow sensor I2, the temperature sensor I4, the temperature sensor II 6, the flow sensor II 11, the temperature sensor III 17, the pressure sensor 18 and the rotating speed sensor acquire working state data and transmit the data to the controller 14. The operating state data is input to the controller 14 via the CAN communication protocol. Wherein, flow sensor I2 gathers the intake air volume data Q1 of intake pipe I1. And the flow sensor II 11 acquires air inflow data Q2 of the air inlet pipe II. The temperature sensor I4 collects a first temperature T1 of the tail gas of the engine. And the temperature sensor II 6 acquires a second temperature T2 of the tail gas of the engine. The temperature sensor III 17 collects water temperature data T3 of the high-pressure water rail 15. The pressure sensor 18 collects water pressure data P1 of the high-pressure water rail 15. The rotational speed sensor collects rotational speed data n1 of the wankel engine 12.
In operation, the controller 14 adjusts the valve passage switching of the three-way valve 7 and the injection strategy of the high-pressure water nozzle 13 according to the operating state data. Wherein the controller 14 adjusts the injection timing t3 (i.e., the injection angle) of the high-pressure water nozzles 13, the injection order s and the injection pulse width m (i.e., the amount of injected water) of each high-pressure water nozzle. The three-way valve 7 receives a control signal from the controller 14 to perform valve channel switching. The three-way valve 7 is configured to:
during the first mode, the exhaust pipe i 3 starts to discharge engine exhaust gas. The three-way valve 7 is in the working position of the straight-through exhaust pipe. The engine exhaust gas flows through the condenser 9 via the exhaust pipe i 3. And the controller 14 determines whether the aftertreatment device is to be fired based on the data collected by the aftertreatment device operating condition sensor. If the aftertreatment device does not operate normally on ignition, the first mode is maintained. And if the aftertreatment device is started normally, the aftertreatment device enters a second mode.
During the second mode, the three-way valve 7 is in the straight-through wankel engine operating position. The engine exhaust gases flow into the wankel engine 12 cylinder via the exhaust line 3 and the inlet line ii.
Example 2:
the embodiment provides an efficient tail gas and waste heat recovery engine structure based on a wankel engine and high-temperature water spraying, and the efficient tail gas and waste heat recovery engine structure comprises a heat exchanger 5, a three-way valve 7, a condenser 9, a wankel engine 12, a plurality of high-pressure water nozzles 13, a controller 14, a high-pressure water rail 15 and an engine body 19.
And an air inlet pipe I1 and an exhaust pipe I3 are respectively arranged on two sides of the upper end of the engine body 19. A flow sensor I2 is arranged on a pipeline of the air inlet pipe I1. The pipeline of the exhaust pipe I3 is sequentially provided with a temperature sensor I4, a heat exchanger 5, a temperature sensor II 6, a three-way valve 7 and a condenser 9. The tail end of the exhaust pipe I3 is further provided with a post-processing device. The engine exhaust passes through an after-treatment device before being discharged to the environment. And a post-processing device working state sensor is arranged in the post-processing device. The aftertreatment device operating condition sensor is electrically connected to the controller 14. And a high-pressure water pipe is arranged between the heat exchanger 5 and the condenser 9. And a high-pressure water pump 8 is arranged on the pipeline of the high-pressure water pipe.
The wankel engine 12 has its crankshaft coupled to the crankshaft of the engine block 19 by a power coupling device. The operating torque of the wankel engine 12 is transmitted to the crankshaft of the engine block 19 via a power coupling. A rotational speed sensor is mounted on the wankel engine 12 crankshaft. And an air inlet pipe II of the Wankel engine 12 is communicated with an air outlet pipe I3 through a three-way valve 7. And a flow sensor II 11 is arranged on an air inlet pipe II of the Wankel engine 12. The exhaust pipe II of the Wankel engine 12 is communicated with the part of the exhaust pipe I3 between the three-way valve 7 and the condenser 9. And a check valve 10 is arranged on the exhaust pipe II.
The high-pressure water nozzle 13 is mounted on the wankel engine 12. The high-pressure water nozzle 13 is connected to a high-pressure water rail 15 via a high-pressure water pipe. The heat exchanger 5 is connected to a high-pressure water rail 15 via a high-pressure water line. And a temperature sensor III 17 and a pressure sensor 18 are mounted on the high-pressure water rail 15.
The flow sensor I2, the temperature sensor I4, the temperature sensor II 6, the three-way valve 7, the high-pressure water pump 8, the flow sensor II 11, the high-pressure water nozzle 13, the temperature sensor III 17, the pressure sensor 18 and the rotating speed sensor are all electrically connected with the controller 14. The flow sensor I2, the temperature sensor I4, the temperature sensor II 6, the flow sensor II 11, the temperature sensor III 17, the pressure sensor 18 and the rotating speed sensor acquire working state data and transmit the data to the controller 14. Wherein, flow sensor I2 gathers the intake air volume data Q1 of intake pipe I1. And the flow sensor II 11 acquires air inflow data Q2 of the air inlet pipe II. The temperature sensor I4 collects a first temperature T1 of the tail gas of the engine. And the temperature sensor II 6 acquires a second temperature T2 of the tail gas of the engine. The temperature sensor III 17 collects water temperature data T3 of the high-pressure water rail 15. The pressure sensor 18 collects water pressure data P1 of the high-pressure water rail 15. The rotational speed sensor collects rotational speed data n1 of the wankel engine 12. In operation, the controller 14 adjusts the valve passage switching of the three-way valve 7 and the injection strategy of the high-pressure water nozzle 13 according to the operating state data.
In the embodiment, the heat exchanger 5 and the condenser 9 are mounted on the exhaust pipe 3 to recover waste heat of tail gas heated by water in a water circulation state, meanwhile, the exhaust pipe structure is redesigned, so that the hot tail gas and high-pressure high-temperature water jointly drive the wankel engine 12 to work, the crankshaft of the wankel engine 12 and the crankshaft of the engine body 19 are coupled through the power coupling device to output torque outwards to do work, efficient recovery and utilization of the waste heat of the tail gas can be realized, and the thermal efficiency of the engine is greatly improved.
Example 3:
the main structure of this embodiment is the same as that of embodiment 2, wherein the three-way valve 7 receives a control signal from the controller 14 to perform valve channel switching. The three-way valve 7 is configured to:
during the first mode, the exhaust pipe i 3 starts to discharge engine exhaust gas. The three-way valve 7 is in the working position of the straight-through exhaust pipe. The engine exhaust gas flows through the condenser 9 via the exhaust pipe i 3. And the controller 14 determines whether the aftertreatment device is to be fired based on the data collected by the aftertreatment device operating condition sensor. If the aftertreatment device does not operate normally on ignition, the first mode is maintained. And if the aftertreatment device is started normally, the aftertreatment device enters a second mode.
During the second mode, the three-way valve 7 is in the straight-through wankel engine operating position. The engine exhaust gases flow into the wankel engine 12 cylinder via the exhaust line 3 and the inlet line ii.
Example 4:
the main structure of this embodiment is the same as that of embodiment 2, wherein the post-processing device operating state sensor acquires the temperature and oxygen concentration of the post-processing device.
Example 5:
the main structure of this embodiment is the same as that of embodiment 2, wherein the operating status data is input to the controller 14 through the CAN communication protocol.
Example 6:
the main structure of this embodiment is the same as that of embodiment 2, wherein a hydraulic valve 16 is arranged on a pipeline between the high-pressure water rail 15 and the heat exchanger 5.
Example 7:
the main structure of the present embodiment is the same as that of embodiment 2, wherein the high-pressure water pump 8 pressurizes the condensed water from the condenser 9 to 15-40 MPa.
Example 8:
the main structure of this embodiment is the same as that of embodiment 2, wherein the controller 14 adjusts the water spray timing of the high-pressure water nozzles 13, the water spray sequence of each high-pressure water nozzle, and the water spray pulse width.
Example 9:
the main structure of the present embodiment is the same as that of embodiment 2, wherein the high-pressure water pump 8 is disposed in the trunk or the engine compartment of the automobile.
Example 10:
in this embodiment, a method for operating the engine structure according to any one of embodiments 1 to 9 is provided, in which water vapor in the engine exhaust is recovered by the condenser 9 and converted into liquid condensate. The condensed water is pressurized and heated by the high-pressure water pump 8 and the heat exchanger 5, and then stored in the common rail cavity of the high-pressure water rail 15. The controller 14 sends a control signal to the three-way valve 7. The three-way valve 7 is actuated to perform a valve passage switch to provide air intake for the wankel engine 12. The wankel engine 12 begins to run. The high-pressure water rail 15 eliminates pressure fluctuation in the injection water and then delivers the injection water to the high-pressure water nozzle 13. The controller 14 regulates the injection strategy of the high pressure water nozzles 13. The high-pressure water nozzle 13 injects high-pressure, high-temperature water into the cylinder of the wankel engine 12. The wankel engine 12 is driven to work by the hot tail gas and the high-pressure high-temperature water. The crankshaft of the wankel engine 12 and the crankshaft of the engine body 19 output torque outwards to do work, and the waste heat of the tail gas is efficiently recovered.
Example 11:
referring to fig. 2, this embodiment provides a method for operating the engine structure according to embodiment 1, the exhaust pipe 3 starts to discharge hot exhaust gas, and the three-way valve 7 is in the through exhaust pipe position for quick cold start and warm-up of the after-treatment device. Sensors in the aftertreatment device collect relevant state parameter data including temperature, oxygen concentration, flow rate of the aftertreatment device and transmit the data to the controller 14. The controller 14 determines whether the aftertreatment device is light-off based on the principles of the aftertreatment device. When the aftertreatment device is not in normal light-off operation, the three-way valve 7 continues to maintain the through exhaust pipe position, and when the aftertreatment device is in normal light-off operation, the controller 14 sends a control signal to the three-way valve, and the three-way valve 7 performs an action to switch to the position of the air inlet pipe ii of the through wankel engine 12 to provide air to the wankel engine 12 to start operating. The condenser 9 is installed at the tail end of the exhaust pipe 3, cools and recovers water vapor in the tail gas, and conveys condensed water to the high-pressure water pump 8. The high-pressure water pump 8 pressurizes the condensed water and then conveys the pressurized condensed water to the heat exchanger 5. The heat exchanger 5 exchanges heat with the hot tail gas to heat the high-pressure cooling water flowing through the heat exchanger. The flow sensor ii 11 collects wankel engine 12 intake air quantity data Q2 and feeds the data back to the controller 14. The temperature sensor III 17 collects water temperature data T3 of the high-pressure water rail 15. The pressure sensor 18 collects water pressure data P1 of the high-pressure water rail 15. The speed sensor monitors the engine speed in real time and feeds speed data n1 back to the controller 14.
The controller 14 calculates the injection timing T3 of the high-pressure water nozzles, the injection sequence s and the injection pulse width m of each high-pressure water nozzle by a control strategy algorithm according to the intake air amount Q1, the intake air amount Q2, the exhaust gas first temperature T1, the exhaust gas second temperature T2 and the temperature T3 and pressure P1 of water in the high-pressure water rail, and performs an injection action into a cylinder of the wankel engine in combination with the wankel engine 12 rotation speed data n1, so that the wankel engine operates stably. The wankel engine crankshaft and a crankshaft of an engine block are coupled together by a power coupling device; the stable working torque of the Wankel engine can be transmitted to an engine crankshaft through a power coupling device, and the external output torque is increased.
Example 12:
the present embodiment provides a vehicle system including the engine structure according to any one of embodiments 1 to 9.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110653541.4A CN113389624A (en) | 2021-06-11 | 2021-06-11 | Wankel engine and high-temperature water spraying based tail gas waste heat recovery efficient engine structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110653541.4A CN113389624A (en) | 2021-06-11 | 2021-06-11 | Wankel engine and high-temperature water spraying based tail gas waste heat recovery efficient engine structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113389624A true CN113389624A (en) | 2021-09-14 |
Family
ID=77620514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110653541.4A Pending CN113389624A (en) | 2021-06-11 | 2021-06-11 | Wankel engine and high-temperature water spraying based tail gas waste heat recovery efficient engine structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113389624A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19632179A1 (en) * | 1996-08-09 | 1998-02-12 | Ludo De Ir Clercq | Internal combustion engine with extended duty cycle |
| WO2007118435A1 (en) * | 2006-04-15 | 2007-10-25 | Andreas Schilke | Combustion engine with direct water injection |
| DE102007049366A1 (en) * | 2007-10-07 | 2009-04-09 | Bernd Hille | Mechanical energy extracting device for internal combustion engine e.g. petrol engine, has fluid injection nozzle arranged at power machine and provided with injecting valve instead of spark plug and/or fuel injection nozzle |
| CN101457713A (en) * | 2008-11-26 | 2009-06-17 | 绵阳新晨动力机械有限公司 | Subcritical steam auxiliary power gasoline engine |
| JP2012107534A (en) * | 2010-11-15 | 2012-06-07 | Honda Motor Co Ltd | Driving system |
| CN102588044A (en) * | 2012-03-13 | 2012-07-18 | 张建元 | Full decontamination waste gas recovering flexible pressurization system |
| CN204082381U (en) * | 2014-04-22 | 2015-01-07 | 浙江银轮机械股份有限公司 | A kind of engine waste heat recovery system based on Organic Rankine Cycle |
| CN106677926A (en) * | 2016-12-09 | 2017-05-17 | 同济大学 | Internal combustion engine structure with superheated water being sprayed into cylinder |
| CN108049986A (en) * | 2017-09-07 | 2018-05-18 | 同济大学 | A kind of engine block of Waste Heat Recovery high temperature grease mixing jetting |
| CN108049987A (en) * | 2017-09-07 | 2018-05-18 | 同济大学 | The natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder |
| CN109386329A (en) * | 2018-11-27 | 2019-02-26 | 李桂江 | Double dynamical steam turbine |
| WO2020151818A1 (en) * | 2019-01-23 | 2020-07-30 | Seedorf Andre | Mehod for energy recovery in internal combustion engines by an exhaust gas steam turbine |
| CN111997747A (en) * | 2020-07-20 | 2020-11-27 | 北京工业大学 | Zero-emission compression ignition type two-stroke rotor machine capable of recycling oxygen and control method thereof |
-
2021
- 2021-06-11 CN CN202110653541.4A patent/CN113389624A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19632179A1 (en) * | 1996-08-09 | 1998-02-12 | Ludo De Ir Clercq | Internal combustion engine with extended duty cycle |
| WO1998006935A1 (en) * | 1996-08-09 | 1998-02-19 | Ludo De Clercq | Internal combustion engine with extended working cycle |
| CA2262980A1 (en) * | 1996-08-09 | 1998-02-19 | Ludo De Clercq | Internal combustion engine with extended working cycle |
| WO2007118435A1 (en) * | 2006-04-15 | 2007-10-25 | Andreas Schilke | Combustion engine with direct water injection |
| DE102007049366A1 (en) * | 2007-10-07 | 2009-04-09 | Bernd Hille | Mechanical energy extracting device for internal combustion engine e.g. petrol engine, has fluid injection nozzle arranged at power machine and provided with injecting valve instead of spark plug and/or fuel injection nozzle |
| CN101457713A (en) * | 2008-11-26 | 2009-06-17 | 绵阳新晨动力机械有限公司 | Subcritical steam auxiliary power gasoline engine |
| JP2012107534A (en) * | 2010-11-15 | 2012-06-07 | Honda Motor Co Ltd | Driving system |
| CN102588044A (en) * | 2012-03-13 | 2012-07-18 | 张建元 | Full decontamination waste gas recovering flexible pressurization system |
| CN204082381U (en) * | 2014-04-22 | 2015-01-07 | 浙江银轮机械股份有限公司 | A kind of engine waste heat recovery system based on Organic Rankine Cycle |
| CN106677926A (en) * | 2016-12-09 | 2017-05-17 | 同济大学 | Internal combustion engine structure with superheated water being sprayed into cylinder |
| CN108049986A (en) * | 2017-09-07 | 2018-05-18 | 同济大学 | A kind of engine block of Waste Heat Recovery high temperature grease mixing jetting |
| CN108049987A (en) * | 2017-09-07 | 2018-05-18 | 同济大学 | The natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder |
| CN109386329A (en) * | 2018-11-27 | 2019-02-26 | 李桂江 | Double dynamical steam turbine |
| WO2020151818A1 (en) * | 2019-01-23 | 2020-07-30 | Seedorf Andre | Mehod for energy recovery in internal combustion engines by an exhaust gas steam turbine |
| CN111997747A (en) * | 2020-07-20 | 2020-11-27 | 北京工业大学 | Zero-emission compression ignition type two-stroke rotor machine capable of recycling oxygen and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106677926B (en) | A kind of Structure of Internal-Combustion Engine of cylinder injection superheated water | |
| US7434389B2 (en) | Engine system and method of providing power therein | |
| CN104847525B (en) | Based on the automobile-used organic Rankine bottoming cycle residual neat recovering system of operating mode automatic switchover mode of operation | |
| CN106143101B (en) | The control method of the dissociated methanol hydrogen manufacturing hybrid power system reclaimed based on engine exhaust heat | |
| CN106837440B (en) | A kind of reheat-type organic Rankine cycle engine residual neat recovering system and control method | |
| JP2001132442A (en) | Engine provided with energy recovering device | |
| CN102748124A (en) | Device for realizing air inflow pressurization by utilizing waste heat of exhaust gas of internal-combustion engine | |
| CN102787889A (en) | Diesel engine exhaust waste heat double-effect recovery system | |
| CN105863764B (en) | Method for combining thermodynamic cycle system | |
| CN108049986A (en) | A kind of engine block of Waste Heat Recovery high temperature grease mixing jetting | |
| CN205172697U (en) | Start-up heating device for SCR system reactor of NOX emission reduction device for marine diesel engine | |
| CN207420711U (en) | The energy-recuperation system of asymmetric double runner turbocharged engine | |
| CN105569872A (en) | Vehicle organic rankine cycle waste heat recovery system adopting liquid combustible organic working media | |
| CN110469399B (en) | Liquid air and fuel dual-energy hybrid engine | |
| CN113389624A (en) | Wankel engine and high-temperature water spraying based tail gas waste heat recovery efficient engine structure | |
| US11066974B2 (en) | Internal combustion engine waste heat utilization system | |
| CN112127976A (en) | Marine engine waste heat recycling system and method thereof | |
| CN102808687A (en) | New technology for improving power performance of turbine and reducing tail gas NOx emission of internal combustion engine simultaneously | |
| CN108049988A (en) | A kind of gasoline engine structure of Waste Heat Recovery high temperature grease mixing jetting | |
| CN116357481B (en) | Ammonia hydrogen fuel engine based on liquid ammonia thermal management supply system and operation control method | |
| CN110005510B (en) | Organic Rankine cycle-ternary catalysis combined control strategy for waste heat recovery and exhaust purification of gasoline engine | |
| CN210343460U (en) | Organic Rankine Cycle-Three-way Catalytic Combined Control Device for Gasoline Engine Waste Heat Recovery and Exhaust Purification | |
| WO2014183636A1 (en) | Supercritical internal-combustion direct-current steam engine unit | |
| WO2010009583A1 (en) | A microwave heating device for emulsifying diesel oil | |
| CN201521334U (en) | Emission reduction and energy saving integrated exhaust device for commercial vehicles based on SCR and ETR |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |