CN203656544U - Oil pump - Google Patents
Oil pump Download PDFInfo
- Publication number
- CN203656544U CN203656544U CN201420030809.4U CN201420030809U CN203656544U CN 203656544 U CN203656544 U CN 203656544U CN 201420030809 U CN201420030809 U CN 201420030809U CN 203656544 U CN203656544 U CN 203656544U
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- grease chamber
- casing
- oil
- valve plug
- chamber
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Abstract
The utility model relates to an oil pump, it is equipped with the first grease chamber in a casing inside, the second grease chamber and lie in the first, the pressurized chamber between the second grease chamber, and be equipped with an regulation grease chamber of intercommunication second grease chamber and a return oil duct, the regulation grease chamber installs the adjusting valve plug, the pressurized chamber is installed engaged with mutually, outer rotor and eccentric wheel, the eccentric wheel combines the meshing of drive assembly to connect the adjusting valve plug, when oil pump output oil pressure risees, utilize the machine oil of high oil pressure to promote the adjusting valve plug and remove, and utilize the adjusting valve plug to drive the eccentric wheel through drive assembly and rotate an angle, reduce the machine oil flow that inner, outer rotor carried to the second grease chamber, and make machine oil shunt to the interior decompression of regulation grease chamber, or flow back to the first grease chamber through the return oil duct by the adjusting grease chamber again, and produce good management and control effect to the supply of machine oil with the mode of initiatively reducing pressure, the whole volume is reduced by matching with a mechanism of meshing the transmission component and the eccentric wheel with the inner rotor and the outer rotor.
Description
Technical field
The utility model is about a kind of oil pump, and espespecially a kind of possess the oil pump that regulates engine oil output function.
Background technique
The at present known oil pump with adjustment engine oil output function, " displacement-variable oil pump " probably being disclosed as China's bulletin CN 203099277 U model utility cases, it is mainly to comprise an oil pump body, one Proportional valve and a discharge capacity controlling mechanism, this oil pump body is by outside feedback oil circuit connected system main oil gallery, this oil pump body includes the pump housing, pump cover, eccentric hoop and blade wheel, pump cover covers on the pump housing, eccentric group is located at the assemblying body inside of the pump housing and pump cover, blade wheel is installed in eccentric hoop inside, blade wheel is provided with the blade of multiple expandables on it is taken turns, the inner circle wall of each blade butt eccentric hoop, Proportional valve is connected on pump cover, Proportional valve is communicated with the assemblying body of the pump housing and pump cover, discharge capacity controlling mechanism refers to that a side of eccentric hoop periphery wall is articulated in the pump housing by straight pin, opposite side is by the first Sealing and pump housing sealing, eccentric hoop connects the pump housing with its extension arm in conjunction with Returnning spring, between extension arm and the pump housing, pass through the second Sealing sealing etc.Therefore, utilize external Proportional valve in oil pump, make the variation of oil pump according to factors such as the pressure of main oil gallery, the turnover oil of passing ratio valve is controlled the swing of eccentric hoop, and the eccentric distance of the interior eccentric hoop of change oil pump and blade ring changes the oil flow rate that oil pump is exported.
Although aforementioned existing oil pump possesses the function of adjusting engine oil output, but the oil pump body of this oil pump must external one Proportional valve being communicated with oil circuit, and proportion of utilization valve and be arranged on the intrinsic discharge capacity controlling mechanism of oil pump and change the oil flow rate of oil pump output, therefore there is baroque problem.And, it in the pump housing of this oil pump body, is the combination that uses blade wheel and eccentric hoop, blade in blade wheel is subject to the oil pressure impact of machine oil and reduces its movable flexibility, and then the performance of reduction oil pump output machine oil, on the other hand, this oil pump reaches the object of machine oil adjustment control in conjunction with the composition of outside Proportional valve with its inner discharge capacity controlling mechanism, because of the structure of external Proportional valve, make this oil pump global existence volume shortcoming bigger than normal.
In addition, somebody further proposes to announce as the U.S. oil pump that US discloses for 8297943 No. B2 at present, this oil pump has the external rotor of teeth groove and the eccentric mechanism of engaging of the internal rotor that has tooth portion outward to replace the combination of eccentric hoop and the blade wheel of aforementioned oil pump in using, in order to pressurize machine oil output, and then the blade that overcomes blade wheel is subject to oily pressure and affects the problem of its activity flexibility.But the pump housing of this oil pump is adjusted the delivery pressure of its machine oil in conjunction with the oil circuit in the pressure relief valve collocation pump housing of valve plug with bias spring, this pressure relief valve is passive control for the delivery pressure of oil pump, and only provide simple oil pressure pressure to discharge the function of adjusting, the action of external rotor and internal rotor combination pressurized delivered machine oil still maintains necessarily, consequently fails to provide the performance of good oil pressure adjustment control.
Model utility content
Technical problem to be solved in the utility model is: a kind of oil pump is provided, solves the problems such as the passive type oil pressure adjustment control performance of existing oil pump is not good and volume is bigger than normal.
The technical solution that the utility model proposes is: a kind of oil pump is provided, and it comprises:
One casing, its inside is formed with one first grease chamber, the pressurized chamber of one second grease chamber and between the first grease chamber and the second grease chamber, casing inside also has the back oil road of connection first grease chamber and the adjusting grease chamber of connection second grease chamber, regulate one end, grease chamber to be formed with an opening at casing outer surface, casing inside is provided with at least one spill port in the one end that regulates contiguous the second grease chamber of grease chamber, casing inside is also provided with an assembly room, assembly room is communicated with the second grease chamber and regulates grease chamber, spill port is communicated with adjusting grease chamber and back oil road, described casing is formed with respectively the axis hole of axial correspondence on the two side of pressurized chamber, the sidewall of casing is provided with the oil outlet that oilhole and is communicated with the second grease chamber that enters of connection first grease chamber,
One modulating valve group, group is located in the adjusting grease chamber of casing, this modulating valve group comprises a control valve plug and an elastic element, the outer circumferential face of control valve plug is formed with an axially extended tooth-strip part, and control valve plug can be regulating axial slip in grease chamber, elastic element one end is positioned at the contiguous place that regulates grease chamber's opening of casing, elastic element the other end butt control valve plug;
One eccentric wheel, is rotatably installed in the pressurized chamber of casing, and eccentric periphery is formed with an engaging tooth portion, and eccentric wheel inside is formed with an eccentric opening;
One external rotor, is installed in eccentric eccentric opening, and external rotor and eccentric opening match, and are formed with a gear grooved in external rotor;
One internal rotor, it has a mesopore, the axis hole of the corresponding casing of mesopore both sides, the periphery of this internal rotor is formed with a tooth portion, the external diameter of internal rotor is less than the aperture of the gear grooved of external rotor, internal rotor group is located in the gear grooved of external rotor, and a tooth portion part for internal rotor is meshed with the gear grooved of external rotor; And
One transmitting assemblies, is installed in casing inside, and is connected with a joggle between eccentric engaging tooth portion and the tooth-strip part of control valve plug.
In oil pump as above, described transmitting assemblies comprises one first driving component and one second driving component, the first driving component is hubbed in the assembly room of casing, the first driving component comprises one first driven gear portion and one first driving gear portion, the external diameter of the first driven gear portion is greater than the external diameter of the first driving gear portion, and the first driven gear portion is meshed with the engaging tooth portion of eccentric wheel periphery; The second driving component is hubbed in the assembly room of casing, this second driving component comprises one second driven gear portion and one second driving gear portion, the external diameter of the second driven gear portion is greater than the external diameter of the second driving gear portion, the second driven gear portion is meshed with the first driving gear portion of the first driving component, and the second driving gear portion self-assembly chamber is stretched in the adjusting grease chamber of casing and is meshed with the tooth-strip part of control valve plug outer circumferential face.
In oil pump as above, described casing is regulating the opening of grease chamber to be equiped with an end plug with penetration hole, and fixed with a clasp, the elastic element of described modulating valve group is a spring, control valve plug is formed with a consent extending vertically inwardly towards one end of end plug, spring one end butt end plug, the spring the other end stretches into the inwall of butt control valve plug in consent.
In oil pump as above, described adjusting grease chamber has an inner end wall away from the other end of opening, and inner end wall is provided with the extension oil duct of connection second grease chamber.
In oil pump as above, described casing is relative with one second housing and close and formed in conjunction with affixed element by one first housing, described adjusting grease chamber and extension oil duct are formed in the first housing, this two axis hole is formed separately on the first housing and the second housing, entering oilhole and oil outlet is formed on the second housing, the outer periphery of described the first housing and the second housing respectively have multiple corresponding fixed holes, provide described affixed element to wear wherein with those corresponding fixed holes.
The attainable beneficial functional of the utility model is, this oil pump is mainly to utilize the adjusting grease chamber that forms connection second grease chamber and back oil road in casing, and install an adjustment valve plug in adjusting grease chamber, in in pressurized chamber in casing, installing is meshed, external rotor, an and sheathed eccentric wheel outside external rotor, eccentric wheel is in conjunction with the transmitting assemblies adjustment valve plug that is connected with a joggle, in the time that the oil pressure of this oil pump output raises, pressurized delivered to the machine oil in casing the second grease chamber branches to and regulates grease chamber and can overcome the elastic force of elastic element and promote to adjust valve plug and move, and make the machine oil that is delivered to casing the second grease chamber branch to adjusting grease chamber and reduce pressure, or further reduce pressure via the first grease chamber that regulates grease chamber to be back to casing by back oil road, on the other hand, when adjustment valve plug moves, drive transmitting assemblies to drive eccentric wheel to rotate an angle, and then utilize friction to drive external rotor to rotate an angle, in change, the position of the bias engagement of external rotor, in reduction, external rotor be delivered to the second grease chamber pressurization machine oil flow and reduce pressure, therefore, make this oil pump in the time that the machine oil hydraulic of output raises, with active mode automatic pressure-reducing, make this oil pump possess good adjustment control effect to the supply of machine oil.
On the other hand, the utility model oil pump is that the adjusting grease chamber that is equiped with adjustment valve plug is incorporated into casing inside, and the be connected with a joggle combined mechanism of the eccentric hoop that is set in gear type inner and outer Rotator outside of collocation transmitting assemblies, and can reduce the overall volume of oil pump, be applied to the space configuration in machine oil output system in order to oil pump.
Brief description of the drawings
Fig. 1 is the three-dimensional appearance schematic diagram of a preferred embodiment of the utility model oil pump.
Fig. 2 is the preferred embodiment of oil pump shown in Fig. 1 exploded schematic perspective view.
Fig. 3 is the perspective exploded view of oil pump preferred embodiment shown in Fig. 1 and Fig. 2.
Fig. 4 is the part plan schematic diagram of the preferred embodiment of oil pump shown in Fig. 1 to Fig. 3.
Fig. 5 is the sectional perspective generalized section in the preferred embodiment of oil pump shown in Fig. 4.
Fig. 6 is the enforcement state reference map of the preferred embodiment of oil pump shown in Fig. 1 to Fig. 3 in the time of decompression.
Drawing reference numeral explanation
10 casings
10A first housing 10B the second housing
101A, 101B axis hole 102A, 102B fixed hole
11 first grease chambeies 111 enter oilhole
12 second grease chamber's 121 oil outlets
13 pressurized chambers 14 regulate grease chamber
142 inner end wall 143 are extended oil duct
144 end plug 145 clasps
15 assembly room's 16 spill ports
17 back oil roads
20 modulating valve group 21 control valve plugs
211 tooth-strip part 22 elastic elements
30 eccentric wheel 31 engaging tooth portions
32 eccentric openings
40 external rotor 41 gear grooveds
50 internal rotor 51 tooth portions
52 mesopores
60 first driving component 61 first driving gear portions
62 first driven gear portions
70 second driving component 71 second driving gear portions
72 second driven gear portions
Embodiment
Below coordinate preferred embodiment graphic and of the present utility model, further set forth the technological means that the utility model is taked for reaching predetermined model utility object.
As shown in Figures 1 and 2, be a preferred embodiment that discloses the utility model oil pump, the composition structure of described oil pump comprises a casing 10, a modulating valve group 20(as shown in Figure 3), an eccentric wheel 30, an external rotor 40, an internal rotor 50 and a transmitting assemblies.
As shown in Figures 2 to 4, described casing 10 inside have one first grease chamber 11, one second grease chamber 12 and a pressurized chamber 13, the first grease chamber 11 and the second grease chamber 12 are positioned at the inner two ends of casing 10, pressurized chamber 13 is between the first grease chamber 11 and the second grease chamber 12, casing 10 is provided with one and enters oilhole 111 on it has the sidewall of one end of the first grease chamber 11, enter oilhole 111 and be communicated with the first grease chamber 11, casing 10 is provided with an oil outlet 121 on it has the sidewall of one end of the second grease chamber 12, oil outlet 121 is communicated with the second grease chamber 12, casing 10 inside have a back oil road 17 and are communicated with the first grease chamber 11, in casing 10, be also formed with an adjusting grease chamber 14, regulate 14 one end, grease chamber extend to casing 10 outer surfaces and be formed with an opening, regulate grease chamber 14 thering is an inner end wall 142(away from the other end of opening as shown in Figure 5), inner end wall 142 is provided with an extension oil duct 143(as shown in Figure 5) be communicated with a side of the contiguous oil outlets 121 in the second grease chamber 12, the aperture of extending oil duct 143 is less than the aperture that regulates grease chamber 14.
As shown in Figures 2 to 4, in aforesaid casing 10, the opening of described adjusting grease chamber 14 can be equiped with an end plug 144 with penetration hole, and fixed with a clasp 145, as shown in Figures 3 to 5, casing 10 inside are also provided with an assembly room 15, and casing 10 is provided with at least one spill port 16 at contiguous inner end wall 142 places that regulate grease chamber 14, described assembly room 15 is communicated with adjusting 14 stage casings, grease chamber, and spill port 16 is communicated with adjusting grease chambeies 14 and back oil roads 17.Described casing 10 is respectively provided with an axis hole 101A, 101B on the two side of pressurized chamber 13, and this two axis hole 101A, 101B are axial correspondence.
As shown in Figure 1 to Figure 3, in this preferred embodiment, described casing 10 is mainly relative with one second housing 10B by one first housing 10A and close and formed with the affixed element locking such as screw, described adjusting grease chamber 14, extending oil duct 143 is formed in the first housing 10A, this two axis hole 101A, 101B is formed separately on the first housing 10A and the second housing 10B, entering oilhole 111 is formed on the second housing 10B with oil outlet 121, the outer periphery of described the first housing 10A and the second housing 10B respectively have multiple corresponding fixed hole 102A, 102B, with those corresponding fixed hole 102A, 102B provides described affixed element to wear wherein.
As shown in Figures 2 to 4, described modulating valve group 20 is arranged in the adjusting grease chamber 14 of casing 10, this modulating valve group 20 includes a control valve plug 21 and an elastic element 22, this control valve plug 21 is cylindrical chocks, the outer circumferential face of control valve plug 21 is formed with an axially extended tooth-strip part 211, and control valve plug 21 can be regulating axial slip in grease chamber 14, and change its with the inner end wall 142 of adjusting grease chamber 14 between space size.Described elastic element 22 one end are positioned on the end plug 144 of the contiguous opening that regulates grease chamber 14, the other end butt control valve plug 21 of elastic element 22.In this preferred embodiment, control valve plug 21 is formed with a consent extending vertically inwardly towards one end of end plug 144, and elastic element 22 is a spring, spring one end butt end plug 144, and the spring the other end stretches in consent and the inwall of butt control valve plug 21.
As shown in Figures 2 to 4, the periphery of described eccentric wheel 30 is formed with an engaging tooth portion 31, is formed with the eccentric opening 32 of a circle in eccentric wheel 30, and this eccentric wheel 30 is rotatably installed in the pressurized chamber 13 of casing 10.
As shown in Figures 2 to 4, described external rotor 40 is installed in the eccentric opening 32 of eccentric wheel 30, and the aperture of the eccentric opening 32 of the external diameter of external rotor 40 and eccentric wheel 30 matches, and external rotor 40 can rub drive eccentric wheel 30, in external rotor 40, be formed with a gear grooved 41.
As shown in Figures 2 to 4, the periphery of described internal rotor 50 is formed with a tooth portion 51, and the external diameter of internal rotor 50 is less than the aperture of the gear grooved 41 of external rotor 40, 50 groups of internal rotors are located in the gear grooved 41 of external rotor 40, tooth portion 51 parts for internal rotor 50 are meshed with the gear grooved 41 of external rotor 40, and the remaining part of tooth portion 51 and gear grooved 41 are eccentric engagement, while rotation with external rotor 40 by internal rotor 50, engage the first grease chamber 11 and the second grease chamber 12 that spatial variations is communicated with casing 10, described internal rotor 50 has a mesopore 52, the axis hole 101A of the corresponding casing of described mesopore 52 10 both sides, 101B, make internal rotor 50 fixed point rotary in casing 10.
As shown in Figures 2 to 4, described transmitting assemblies is arranged in the assembly room 15 of casing 10, and is connected with a joggle between eccentric wheel 30 and control valve plug 21, makes control valve plug 21 via transmitting assemblies and eccentric wheel 30 interlocks.In this preferred embodiment, it is the member of gear kenel that described transmitting assemblies comprises one first driving component 60 and one second driving component 70, the first driving components 60 and the second driving component 70, in order to be engaged and linked between adjustment valve plug 21 and eccentric wheel 31.
As shown in Figures 2 to 4, described the first driving component 60 is hubbed in the assembly room 15 of casing 10, this first driving component 60 comprises one first driven gear portion 62 and one first driving gear portion 61, the external diameter of the first driven gear portion 62 is greater than the external diameter of the first driving gear portion 61, and the first driven gear portion 62 is meshed with the engaging tooth portion 31 of eccentric wheel 30 peripheries.As shown in Figures 3 to 5, the second driving component 70 is hubbed in the assembly room 15 of casing 10, this second driving component 70 comprises one second driven gear portion 72 and one second driving gear portion 71, the external diameter of the second driven gear portion 72 is greater than the external diameter of the second driving gear portion 71, and the second driven gear portion 72 is meshed with the first driving gear portion 61 of the first driving component 60, the second driving gear portion 71 stretches into via assembly room 15 in the adjusting grease chamber 14 of casing 10 and is meshed with the tooth-strip part 211 of control valve plug 21 outer circumferential faces.
The utility model oil pump in use, as Fig. 4, shown in Fig. 5, the axle of the mesopore 52 Zu Jie external drive mechanisms of internal rotor 50, utilize external drive mechanism to drive internal rotor 50 to rotate with this, and then drive external rotor 40 to rotate by internal rotor 50, and utilize the eccentric meshing relation between the tooth portion 51 of internal rotor 50 outer periphery and the gear grooved 41 of external rotor 40 inner circumference edges, and drive in the process that external rotor 40 rotates at internal rotor 50, utilize the spatial position change between internal rotor 50 and external rotor 40, make outside machine oil entering oilhole 111 and being sucked into the space between internal rotor 50 and external rotor 40 via the first grease chamber 11 by casing 10, continue and utilize the push effect that internal rotor 50 and external rotor 40 rotate produce pressurization and push to the second grease chamber 12 machine oil between the two, export via oil outlet 121 again, supply with the required machine oil of outer.
As Fig. 4, shown in Fig. 6, in the time that the required oil level of outer is less than oil pump output oil level, can make the oil of oil pump output produce the variation that oil pressure raises, pressurized delivered to the machine oil in the second grease chamber 12 of casing 10 branches to and regulates grease chamber 14, and can overcome the elastic force of elastic element 22 and promote to adjust valve plug 21 and move, wherein: when adjustment valve plug 21 moves, drive transmitting assemblies to drive eccentric wheel 30 to rotate an angle, and cause the frictional resistance between external rotor 40 and eccentric wheel 30 to increase, and then utilize friction to drive external rotor 40 to rotate an angle, change the eccentric engaging position between internal rotor 50 and external rotor 40, reduce internal rotor 50, external rotor 40 be delivered to the second grease chamber 12 pressurization machine oil flow and reduce pressure, on the other hand, adjust the movement of valve plug 21, can make the space of the one end that regulates grease chamber 14 to be communicated with the second grease chamber 12 strengthen, make the machine oil that is delivered to casing 10 second grease chambeies 12 can branch to adjusting grease chamber 14 and reduce pressure, when the oil pressure of machine oil in the second grease chamber 12 continues to rise, can promote control valve plug 21 and open spill port 16 away from regulating the inner end wall 142 of grease chamber 14 gradually, make to enter the machine oil regulating in grease chamber 14 and flow back to the first grease chamber 11 from spill port 16 via backflow road 17 and reduce pressure.Therefore, make this oil pump in the time that the machine oil hydraulic of output raises, with active mode automatic pressure-reducing, make this oil pump possess good adjustment effect to the supply of machine oil.
The above is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, but not in order to limit the utility model, any those skilled in the art, not departing from the scope of technical solutions of the utility model, should utilize the technology contents of above-mentioned announcement to make a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (5)
1. an oil pump, is characterized in that, it comprises:
One casing, its inside is formed with one first grease chamber, the pressurized chamber of one second grease chamber and between the first grease chamber and the second grease chamber, casing inside also has the back oil road of connection first grease chamber and the adjusting grease chamber of connection second grease chamber, regulate one end, grease chamber to be formed with an opening at casing outer surface, casing inside is provided with at least one spill port in the one end that regulates contiguous the second grease chamber of grease chamber, casing inside is also provided with an assembly room, assembly room is communicated with the second grease chamber and regulates grease chamber, spill port is communicated with adjusting grease chamber and back oil road, described casing is formed with respectively the axis hole of axial correspondence on the two side of pressurized chamber, the sidewall of casing is provided with the oil outlet that oilhole and is communicated with the second grease chamber that enters of connection first grease chamber,
One modulating valve group, group is located in the adjusting grease chamber of casing, this modulating valve group comprises a control valve plug and an elastic element, the outer circumferential face of control valve plug is formed with an axially extended tooth-strip part, and control valve plug can be regulating axial slip in grease chamber, elastic element one end is positioned at the contiguous place that regulates grease chamber's opening of casing, elastic element the other end butt control valve plug;
One eccentric wheel, is rotatably installed in the pressurized chamber of casing, and eccentric periphery is formed with an engaging tooth portion, and eccentric wheel inside is formed with an eccentric opening;
One external rotor, is installed in eccentric eccentric opening, and external rotor and eccentric opening match, and are formed with a gear grooved in external rotor;
One internal rotor, it has a mesopore, the axis hole of the corresponding casing of mesopore both sides, the periphery of this internal rotor is formed with a tooth portion, the external diameter of internal rotor is less than the aperture of the gear grooved of external rotor, internal rotor group is located in the gear grooved of external rotor, and a tooth portion part for internal rotor is meshed with the gear grooved of external rotor; And
One transmitting assemblies, is installed in casing inside, and is connected with a joggle between eccentric engaging tooth portion and the tooth-strip part of control valve plug.
2. oil pump according to claim 1, it is characterized in that, described transmitting assemblies comprises one first driving component and one second driving component, the first driving component is hubbed in the assembly room of casing, the first driving component comprises one first driven gear portion and one first driving gear portion, the external diameter of the first driven gear portion is greater than the external diameter of the first driving gear portion, and the first driven gear portion is meshed with the engaging tooth portion of eccentric wheel periphery; The second driving component is hubbed in the assembly room of casing, this second driving component comprises one second driven gear portion and one second driving gear portion, the external diameter of the second driven gear portion is greater than the external diameter of the second driving gear portion, the second driven gear portion is meshed with the first driving gear portion of the first driving component, and the second driving gear portion self-assembly chamber is stretched in the adjusting grease chamber of casing and is meshed with the tooth-strip part of control valve plug outer circumferential face.
3. oil pump according to claim 1 and 2, it is characterized in that, described casing is regulating the opening of grease chamber to be equiped with an end plug with penetration hole, and fixed with a clasp, the elastic element of described modulating valve group is spring, control valve plug is formed with a consent extending vertically inwardly towards one end of end plug, spring one end butt end plug, and the spring the other end stretches into the inwall of butt control valve plug in consent.
4. oil pump according to claim 3, is characterized in that, described adjusting grease chamber has an inner end wall away from the other end of opening, and inner end wall is provided with the extension oil duct of connection second grease chamber.
5. oil pump according to claim 4, it is characterized in that, described casing is relative with one second housing and close and formed in conjunction with affixed element by one first housing, described adjusting grease chamber and extension oil duct are formed in the first housing, this two axis hole is formed separately on the first housing and the second housing, enter oilhole and oil outlet and be formed on the second housing, the outer periphery of described the first housing and the second housing respectively have multiple corresponding fixed holes, and described affixed assembly is located in those corresponding fixed holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420030809.4U CN203656544U (en) | 2014-01-17 | 2014-01-17 | Oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420030809.4U CN203656544U (en) | 2014-01-17 | 2014-01-17 | Oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656544U true CN203656544U (en) | 2014-06-18 |
Family
ID=50922929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420030809.4U Expired - Fee Related CN203656544U (en) | 2014-01-17 | 2014-01-17 | Oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656544U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314637A (en) * | 2014-08-19 | 2015-01-28 | 湖南机油泵股份有限公司 | Oil pump of internal combustion engine |
| CN107965657A (en) * | 2016-10-20 | 2018-04-27 | 瑞章精密工业股份有限公司 | Multi-section variable oil pump |
-
2014
- 2014-01-17 CN CN201420030809.4U patent/CN203656544U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314637A (en) * | 2014-08-19 | 2015-01-28 | 湖南机油泵股份有限公司 | Oil pump of internal combustion engine |
| CN107965657A (en) * | 2016-10-20 | 2018-04-27 | 瑞章精密工业股份有限公司 | Multi-section variable oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20200117 |