CN209414990U - Gear type oil pump, engine and vehicle - Google Patents

Abstract

This disclosure relates to a kind of gear type oil pump, engine and vehicle, gear type oil pump includes: driving gear；Driven gear shaft；Driven gear is mounted on driven gear shaft and engages with driving gear；The pump housing, driving gear, driven gear, driven gear shaft are arranged in the pump housing；Pressure controls oil pocket, for driving driven gear to move along first direction, to change the engagement area of driven gear and driving gear；Pressure-control valve, for controlling the oil pressure size in pressure control oil pocket；First elastic component, for driving driven gear to move along the second direction opposite with first direction, so that driven gear resets；Second elastic component for providing power-assisted when pressure control oil pocket driving driven gear is moved along first direction, and provides resistance when the first elastic component driving driven gear moves in a second direction.Since the second elastic component provides resistance when driven gear moves in a second direction, to can avoid driven gear and circumferential component generation mechanical shock.

Description

Gear type oil pump, engine and vehicle

Technical field

This disclosure relates to technical field of vehicle manufacture, and in particular, to a kind of gear type oil pump uses the gear type machine The engine of oil pump and the vehicle for using the engine.

Background technique

Under the conditions of different rotating speeds, the demand to oil flow rate is different engine, nowadays more common machine oil Pump has fixed displacement lubricating oil pump and variable displacement lubricating oil pump two types.The machine oil discharge capacity of fixed displacement lubricating oil pump turns with engine Speed changes linearly, and in high engine speeds operating, the discharge capacity of lubricating oil pump is larger, and economy is bad, variable displacement lubricating oil pump Machine oil discharge capacity can be adjusted according to the revolving speed of engine, therefore, to reduce machine oil loss, the engine of vehicle can be selected Variable displacement lubricating oil pump.

Currently, variable displacement lubricating oil pump mainly has vane type lubricating oil pump and two kinds of gear type oil pump.Gear type machine oil Pump mainly includes intermeshing driving gear and driven gear, and when driving gear rotation, driving gear drives driven gear It rotates together, so that machine oil to be sucked to from inlet port and be pressed to press oil port, by moving axially driven gear, can change driven The length of action of gear and driving gear, and then change the every of gear type oil pump and turn discharge capacity.To keep driven gear axial Mobile, the side of driven gear is usually provided with reset spring, and the other side is provided with pressure chamber, and solenoid valve can be according to gear pump The aperture of fuel-displaced pressure control valve be more than or less than the pressure of pressure chamber and reset to control the pressure in pressure chamber The elastic force of spring, so that driven gear is axially mobile.However, when the unexpected pressure release of pressure chamber and reset spring return, it is driven Gear is easy to generate mechanical shock with circumferential component, to influence the service life of driven gear.

Utility model content

Purpose of this disclosure is to provide a kind of gear type oil pump, the engine using the gear type oil pump and uses The vehicle of the engine, which can make the adjustment process of machine oil discharge capacity more reliable and more stable, and make driven gear It can steadily move axially, to be effectively prevented from driven gear and the generation mechanical shock of its circumferential component, improve driven gear And the service life of gear type oil pump.

To achieve the goals above, the disclosure provides a kind of gear type oil pump, comprising:

Driving gear；

Driven gear shaft；

Driven gear is mounted on the driven gear shaft and engages with the driving gear；

The pump housing, the driving gear, the driven gear, the driven gear shaft are arranged in the pump housing；

Pressure control oil pocket, for driving the driven gear to move along first direction, with change the driven gear with The engagement area of the driving gear；

Pressure-control valve, for controlling the oil pressure size in the pressure control oil pocket；

First elastic component, for driving the driven gear to move along second direction opposite to the first direction, with Reset the driven gear；

Second elastic component, for when pressure control oil pocket drives the driven gear to move along the first direction Power-assisted is provided, and drives the driven gear to provide resistance when moving along the second direction in first elastic component.

Optionally, the driven gear is axially movable relative to the driven gear shaft, the pressure control oil pocket to The driven gear applies the hydraulic coupling along the first direction, and first elastic component applies to the driven gear along described First elastic force of second direction, second elastic component apply the second elasticity along the first direction to the driven gear Power, first elastic force are greater than or equal to second elastic force.

Optionally, the driven gear shaft is axially movable relative to the pump housing, the driven gear with it is described driven The axially opposing fixation of gear shaft, the pressure control oil pocket and apply to the driven gear or the driven gear shaft along described the The hydraulic coupling in one direction, first elastic component apply to the driven gear or the driven gear shaft along the second direction The first elastic force, second elastic component applies to the driven gear or the driven gear shaft along the first direction Second elastic force, first elastic force are greater than or equal to second elastic force.

Optionally, second elastic component is one or more.

Optionally, first elastic component is the first spring, and first spring is set on the driven gear shaft, institute Stating the second elastic component is second spring, and the second spring is set on the driven gear shaft.

Optionally, the one end of first elastic component far from the driven gear is supported with the pump housing, second bullet Property the one end of part far from the driven gear supported with the pump housing, offered on the pump housing the first locating slot and second positioning Slot, the one end of first elastic component far from the driven gear are supported with first locating slot, and second elastic component is remote It is supported with second locating slot one end from the driven gear.

Optionally, the pressure-control valve is proportion magnetic valve.

Through the above technical solutions, driven gear can be made to move by changing the oil pressure size in pressure control oil pocket It is dynamic, thus change the engagement area of driven gear and driving gear, the machine oil discharge capacity of the wheeled lubricating oil pump of adjusting tooth.With the prior art The gear type oil pump of offer is compared, in the disclosure, when pressure controls oil pocket pressure release and the first elastic component driving driven gear When moving in a second direction, since the second elastic component provides resistance to driven gear, so that the first elastic component is to driven gear The elastic force of application slowly increases, and driven gear is slowly and steadily mobile towards second direction, so as to avoid because of pressure control The unexpected pressure release of liquefaction chamber, the first elastic component increase suddenly to the elastic force that driven gear applies and lead to driven gear movement speed It is too fast and there is a situation where mechanical shocks to occur with its circumferential component, improve the kinetic stability and driven gear of driven gear Service life；When pressure control oil pocket is pressurized and the first elastic component is compressed, driven gear is moved along first direction, due to Second elastic component provides power-assisted to driven gear, and the second elastic component can drive driven gear to move together with pressure control oil pocket It is dynamic, so that oil pressure needed for reducing pressure control oil pocket, improves sensitivity and the gear type oil pump of driven gear movement Working efficiency.

According to another aspect of the present disclosure, a kind of engine is provided, including above-mentioned gear type oil pump.

Optionally, the oil inlet of the pressure-control valve of the oil outlet of the gear type oil pump and the gear type oil pump Connection, the oil outlet of the pressure-control valve are connected to the pressure of gear type oil pump control oil pocket, and the engine is also Including pressure-detecting device and controller, the pressure-detecting device is used to detect the oil pressure out of the gear type oil pump, What the controller was used to be detected according to the pressure-detecting device goes out the work information control of oil pressure and the engine The aperture of the pressure-control valve.

Through the above technical solutions, controller can be detected according to pressure-detecting device go out oil pressure and engine Work information controls the aperture of pressure-control valve, to enable the oil pressure in pressure control oil pocket according to the reality of engine Operating condition automatically adjusts, and then adjusts the length of action of driven gear and driving gear, adjusts every turn of gear type oil pump Discharge capacity, oil level needed for making the oil level and engine of gear type oil pump output coincide.

According to another aspect of the disclosure, a kind of vehicle is provided, including above-mentioned engine.

Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:

Fig. 1 is the operation principle schematic diagram for the engine that a kind of embodiment of the disclosure provides；

Fig. 2 is the operation principle schematic diagram for the engine that disclosure another embodiment provides；

Fig. 3 is the operation principle schematic diagram for the engine that disclosure another embodiment provides.

Description of symbols

1 driving gear, 2 driving gear shaft

3 driven gear, 4 driven gear shaft

5 first elastic component, 6 second elastic component

7 pressure control 8 pump housing of oil pocket

9 pressure-control valve, 100 oil filter

110 pressure-detecting device, 120 controller

A1 first direction

A2 second direction

Specific embodiment

It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.

As shown in Figure 1 to Figure 3, the disclosure provides a kind of gear type oil pump, including driving gear shaft 2, driving gear 1, Driven gear shaft 4, driven gear 3, the pump housing 8, pressure control oil pocket 7, pressure-control valve 9, the first elastic component 5 and the second elasticity Part 6.Above-mentioned driving gear 1, driven gear 3, driving gear shaft 2, driven gear shaft 4 are installed in the pump housing 8, driving gear 1 It being mounted on driving gear shaft 2, driven gear 3 is mounted on driven gear shaft 4, and driving gear 1 is engaged with driven gear 3, In this way, driving gear 1 can drive driven gear 3 to rotate together when driving gear 1 rotates.Pressure control oil pocket 7 is for driving Driven gear 3 is moved along first direction A1, and to change the engagement area of driven gear 3 Yu driving gear 1, the first elastic component 5 is used It is moved in driving driven gear 3 along the second direction A2 opposite with first direction A1, so that driven gear 3 resets, pressure control Valve 9 can be used for controlling the pressure in pressure control oil pocket 7, to change the court that pressure control oil pocket 7 applies to driven gear 3 To the size of the active force of first direction A1.Second elastic component 6 is used to drive driven gear 3 along first in pressure control oil pocket 7 Direction A1 provides power-assisted when mobile, compresses the first elastic component 5 with aux. pressure control oil pocket 7, and drive in the first elastic component 5 Driven gear 3 provides resistance when A2 is mobile in a second direction so that driven gear 3 can smoothly, steadily A2 in a second direction It is mobile.Here, first direction A1 and second direction A2 is parallel with the axial direction of driving gear shaft 2 and driven gear shaft 4, and first Direction A1 and second direction A2 are opposite.

The machine oil discharge capacity of gear type oil pump and driving gear 1 and driven gear 3 engagement area (that is, driving gear 1 and The length of action of driven gear 3) it is related, the engagement area of driving gear 1 and driven gear 3 is bigger, and machine oil discharge capacity is bigger.Cause This, when vehicle just starts, that is, when engine speed is lower, driving gear 1 and driven gear 3 can be made at a fully engaged, so that Gear type oil pump has maximum machine oil discharge capacity, thus oil level demand when meeting time of engine low speed；When engine turns When speed increases, pressure control oil pocket 7 and the second elastic component 6 can drive driven gear 3 mobile towards first direction A1 together, with The engagement area for reducing driven gear 3 and driving gear 1 engages driven gear 3 and 1 part of driving gear, to reduce tooth Every favourable turn oil discharge capacity of wheeled lubricating oil pump, so that oil level needed for the machine oil discharge capacity of gear type oil pump and engine coincide, Avoid the loss of gear type oil pump power and the waste of machine oil；When engine speed reduces again, pressure control can be made 7 pressure release of oil pocket, to make the first elastic component 5 driving driven gear 3 steadily move towards second direction A2, so that driven gear 3 reset, and increase the engagement area of driven gear 3 and driving gear 1, thus increase the machine oil discharge capacity of gear type oil pump, with Meet oil level demand when low engine speeds.

It should be noted that when pressure control oil pocket 7 drives driven gear 3 to move along first direction A1, the second elasticity Part 6 is for providing power-assisted, that is to say, that the second elastic component 6 is that aux. pressure control oil pocket 7 drives driven gear 3 mobile , in driven gear 3 along the moving process of first direction A1, based on the driving of pressure control oil pocket 7, the second elastic component 6 Driving supplemented by, with improve control accuracy, avoid the second elastic component 6 fail when, pressure control oil pocket 7 can not drive from Moving gear 3 is mobile, to further improve gear type oil pump maintainability.

Through the above technical solutions, driven gear 3 can be made to move by changing the oil pressure size in pressure control oil pocket 7 It is dynamic, thus change the engagement area and length of action of driven gear 3 Yu driving gear 1, the machine oil row of the wheeled lubricating oil pump of adjusting tooth Amount.Compared with the gear type oil pump that the prior art provides, in the disclosure, when pressure controls 7 pressure release of oil pocket and the first elasticity When part 5 drives driven gear 3 A2 is mobile in a second direction, since the second elastic component 6 provides resistance to driven gear 3, so that First elastic component 5 slowly increases to the elastic force that driven gear 3 applies, and driven gear 3 can be slowly and steadily towards second Direction A2 is mobile, controls the unexpected pressure release of oil pocket 7, the elasticity that the first elastic component 5 applies to driven gear 3 so as to avoid because of pressure Power increases suddenly and causes 3 movement speed of driven gear too fast and there is a situation where mechanical shock generations with its circumferential component, mentions The high kinetic stability of driven gear 3 and the service life of driven gear 3；When pressure control oil pocket 7 pressurization and the first elasticity When part 5 is compressed, driven gear 3 is moved along first direction A1, since the second elastic component 6 provides power-assisted to driven gear 3, the Two elastic components 6 can control oil pocket 7 with pressure and drive the movement of driven gear 3 together, to reduce needed for pressure control oil pocket 7 Oil pressure, improve driven gear 3 movement sensitivity and gear type oil pump working efficiency.

Above-mentioned pressure control oil pocket 7 can drive in several ways driven gear 3 to move along first direction A1, in this public affairs It opens in a kind of embodiment of offer, as shown in Figure 1, driven gear 3 can be axially movable relative to driven gear shaft 4, from The both ends of movable gear shaft 4 can be fixed on the pump housing 8, and pressure controls liquid of the oil pocket 7 to the application of driven gear 3 along first direction A1 Pressure, the first elastic component 5 apply the first elastic force of A2 in a second direction to driven gear 3, and the second elastic component 6 is to driven gear 3 apply the second elastic force along first direction A1.Since driven gear 3 can be along the axial movement of driven gear shaft 4, and pressure It controls oil pocket 7 and directly applies the variable hydraulic coupling of pressure to driven gear 3, when the hydraulic coupling and the second elasticity along first direction A1 When power is greater than the first elastic force of A2 in a second direction, driven gear 3 can control oil pocket 7 and the second elastic component 6 in pressure It is moved in the axial direction of driven gear shaft 4 in a first direction A1 under effect；When the hydraulic coupling and the second elasticity along first direction A1 When power is less than the first elastic force of A2 in a second direction, driven gear 3 can be under the action of the first elastic component 5 along driven gear The axial direction of axis 4 moves on second direction A2, to realize the engagement area and length of action of driven gear 3 Yu driving gear 1 Adjusting, and then realize gear type oil pump machine oil discharge capacity adjusting, achieve the purpose that energy saving.

In the another embodiment that the disclosure provides, as shown in Figures 2 and 3, driven gear shaft 4 is relative to the pump housing 8 It is axially movable, driven gear 3 and the axially opposing fixation of driven gear shaft 4, that is, driven gear 3 can not be along driven gear shaft 4 Axial movement, pressure control hydraulic coupling of the oil pocket 7 to driven gear 3 or the application of driven gear shaft 4 along first direction A1, the first bullet Property part 5 apply the first elastic force of A2 in a second direction to driven gear 3 or driven gear shaft 4, the second elastic component 6 is to driven tooth Wheel 3 or driven gear shaft 4 apply the second elastic force along first direction A1.Since driven gear shaft 4 is to being fixed on driven gear On axis 4, when driven gear shaft 4 moves axially, driven gear shaft 4 can drive driven gear 3 to move axially together；When driven For gear shaft 4 to when movement, driven gear 3 can also drive driven gear shaft 4 to move axially together.Therefore, pressure controls oil pocket 7 Second elastic force of the first elastic force, the offer of the second elastic component 6 that the hydraulic coupling of offer, the first elastic component 5 provide can apply On driven gear 3 and/or driven gear shaft 4.

For example, hydraulic coupling, the first elastic force and the second elastic force can be applied on driven gear shaft 4 (such as Fig. 2 institute Show)；Alternatively, hydraulic coupling, the first elastic force and the second elastic force can be applied on driven gear 3；Alternatively, as shown in figure 3, One or both of hydraulic coupling, the first elastic force and second elastic force are applied on driven gear shaft 4, in addition the two or one It is applied on driven gear 3；Alternatively, one or both of hydraulic coupling, the first elastic force and second elastic force be applied to it is driven On gear 3, in addition the two or one are applied on driven gear shaft 4.As long as in this way, when the hydraulic coupling and the along first direction A1 When two elastic forces are greater than the first elastic force of A2 in a second direction, driven gear 3 can be with driven gear shaft 4 together along first party It is mobile to A1；As long as when the first elastic force for being less than A2 in a second direction along the hydraulic coupling of first direction A1 and the second elastic force When, driven gear 3 can A2 be mobile in a second direction together with driven gear shaft 4, to realize driven gear 3 and driving gear 1 engagement area and the adjusting of length of action, and then realize the adjusting of the machine oil discharge capacity of gear type oil pump, reach energy saving Purpose.

It should be noted that the first elastic force mentioned in the above-described embodiments is greater than or equal to the second elastic force, so as to In the installation of driven gear 3, and driven gear 3 is enable to remain stationary in its original state.For example, being installed by driven gear 3 After on to driven gear shaft 4, the first elastic force is set to be equal to the second elastic force, hydraulic coupling is zero at this time, at the beginning of driven gear 3 is located at it Beginning state, which can be the maximum state of engagement area of driven gear 3 and driving gear 1, hydraulic by increasing Power can make driven gear 3 mobile, to change the engagement area of driven gear 3 Yu driving gear 1.

Further, above-mentioned second elastic component 6 can be one, or multiple.When the second elastic component 6 is one When, the second elastic force along first direction A1 is provided by this second elastic component 6；When the second elastic component 6 is multiple, along the The second elastic force of one direction A1 is the summation for the elastic force that multiple second elastic component 6 provides.When the second elastic component 6 is multiple When, the elastic force that each second elastic component 6 provides should be uniformly distributed along the end face of driven gear 3 or driven gear shaft 4, so that from Moving gear 3 can move linearly along with the horizontal second direction A2 of driven gear shaft 4, mobile without departing from second direction A2.

Further, the one end of the first elastic component 5 far from driven gear 3 is supported with the pump housing 8, so that 5 energy of the first elastic component Enough the first elastic forces for applying A2 in a second direction to driven gear 3 or driven gear shaft 4.Second elastic component 6 is far from driven tooth One end of wheel 3 is supported with the pump housing 8, so that the second elastic component 6 can apply to driven gear 3 or driven gear shaft 4 along first party To the second elastic force of A1.

Further, in a kind of illustrative embodiments that the disclosure provides, the first elastic component 5 can be the first bullet Spring, when the first elastic force for the A2 in a second direction that the first spring applies is applied directly on driven gear 3, to make the first bullet Spring can steadily stretch, and the first spring can be set on driven gear shaft 4, and the first spring is close to the one of driven gear 3 End can be supported with driven gear 3, and the one end of the first spring far from driven gear 3 can be supported with the pump housing 8.When the first spring is applied When the first elastic force of the A2 in a second direction added is applied directly on driven gear shaft 4, the first spring is close to driven gear 3 One end can be supported with driven gear shaft 4, and the one end of the first spring far from driven gear 3 can be supported with the pump housing 8.First spring Wearing piece (not shown) can be set between driven gear shaft 4 or driven gear 3, that is to say, that one end of the first spring can To be supported by wearing piece with driven gear shaft 4 or driven gear 3, thus when preventing driven gear shaft 4 or driven gear 3 from rotating It rubs with the first spring, to influence the service life of the first spring and driven gear shaft 4 or driven gear 3.

In a kind of illustrative embodiments that the disclosure provides, the second elastic component 6 or second spring, when second When the second elastic force along first direction A1 that spring applies is applied directly on driven gear 3, to keep second spring steady Surely it stretches, second spring can be set on driven gear shaft 4, and second spring can be with close to one end of driven gear 3 Driven gear 3 is supported, and the one end of second spring far from driven gear 3 can be supported with the pump housing 8.When second spring apply along the When the second elastic force of one direction A1 is applied directly on driven gear shaft 4, second spring can be with close to one end of driven gear 3 It is supported with driven gear shaft 4, the one end of second spring far from driven gear 3 can be supported with the pump housing 8.Second spring and driven tooth Wearing piece (not shown) can be set between wheel shaft 4 or driven gear 3, that is to say, that one end of second spring can be by resistance to Mill part is supported with driven gear shaft 4 or driven gear 3, thus when preventing driven gear shaft 4 or driven gear 3 from rotating and the second bullet Spring rubs, to influence the service life of second spring and driven gear shaft 4 or driven gear 3.

In other embodiments, the first elastic component 5 and the second elastic component 6 or be capable of providing the first elastic force and The first elastic block rubber and the second elastic block rubber of second elastic force or other be capable of providing the first elastic force and the second bullet The elastic construction of property power.

In addition, to enable the first elastic component 5 and second one end of elastic component 6 far from driven gear 3 steadily to support and pump On body 8, relative motion does not occur with the pump housing 8, in the illustrative embodiments that the disclosure provides, offers first on the pump housing 8 Locating slot (not shown) and the second locating slot (not shown), the one end of the first elastic component 5 far from driven gear 3 and the first locating slot It supports, the one end of the second elastic component 6 far from driven gear 3 is supported with the second locating slot, so that the first locating slot and the second positioning First elastic component 5 and the second elastic component 6 can be located on the pump housing 8 by slot respectively.The shape of first locating slot and the second locating slot And size can be configured according to the shape and size of the first elastic component 5 and the second elastic component 6, for example, when the first elastic component 5 For the first spring, when the second elastic component 6 is second spring, the first locating slot and the second locating slot can be cylindrical positioning Slot, to be adapted with the shape of the first spring and second spring and size.

It in the gear type oil pump provided in the disclosure, is controlled by pressure-control valve 9 in pressure control oil pocket 7 Oil pressure size, the disclosure provide a kind of exemplary approach in, pressure-control valve 9 can be proportion magnetic valve, so as to It is enough that control pressure controls the pressure in oil pocket 7 continuously, pari passu.And it is possible to drive ratio electromagnetism by electric signal Valve, to realize the far distance control of the oil pressure size in pressure control oil pocket 7.In other embodiments, pressure-control valve 9 Or electromagnetic valve of flow control etc. can adjust the solenoid valve for the pressure that pressure controls in oil pocket 7 by valve opening.

According to another aspect of the disclosure, a kind of engine is provided, including above-mentioned gear type oil pump, to make tooth Wheeled lubricating oil pump can adjust machine oil discharge capacity according to the revolving speed of engine, avoid the waste of machine oil.

Further, the oil outlet of gear type oil pump is connected to the oil inlet of the pressure-control valve 9 of gear type oil pump, The oil outlet of pressure-control valve 9 is connected to the pressure of gear type oil pump control oil pocket 7, and gear type oil pump oil outlet is arranged The part oil delivery removed to pressure controls oil pocket 7, makes it as source oily needed for pressure control oil pocket 7.

Further, engine further includes oil filter 100, the oil inlet and gear type machine oil of oil filter 100 The oil outlet of pump is connected to, to remove the impurity such as the dust in machine oil, metallic particles, carbon precipitates and coal soot, to play Protect the effect of engine.The oil inlet of the pressure-control valve 9 of the oil outlet and gear type oil pump of oil filter 100 connects Logical, the oil outlet of pressure-control valve 9 is connected to the pressure of gear type oil pump control oil pocket 7, in this way, from oil filter 100 The part machine oil of oil outlet discharge can be transported in pressure control oil pocket 7 by pressure-control valve 9, for increasing pressure control Oil pressure in liquefaction chamber 7, when pressure controls 7 pressure release of oil pocket, the machine oil that pressure control oil pocket 7 is discharged can flow into oil sump In, to improve the recycling rate of waterused of machine oil.In other embodiments, the oil inlet of pressure-control valve 9 can also in vehicle Other oil communications.

To realize that pressure controls the automatic control of the oil pressure in oil pocket 7, above-mentioned engine further includes pressure-detecting device 110 With controller 120, pressure-detecting device 110 is used to detect the oil pressure that goes out of gear type oil pump, and controller 120 is used for according to inspection The aperture for surveying the work information control pressure-control valve 9 for going out oil pressure and engine that device detects, thus according to engine Actual condition carry out the oil pressure in automatic pressure regulation control oil pocket 7, and then control engaging for driven gear 3 and driving gear 1 Length adjusts the every of gear type oil pump and turns discharge capacity, machine oil needed for the oil level and engine that export gear type oil pump Amount is coincide.

Further, in a kind of embodiment that the disclosure provides, pressure-detecting device 110 can be pressure sensing Device, pressure sensor can be connect with 100 oil outlet of oil filter, the machine oil one being discharged from 100 oil outlet of oil filter Part enters pressure by pressure-control valve 9 and controls in oil pocket 7, and it is each that another part by pressure sensor enters engine The moving surface of part, to guarantee the normal operation of each part of engine, therefore, what pressure sensor detected, which goes out oil pressure, is The engine oil pressure for being supplied to each part movement surface of engine of gear type oil pump discharge.In addition, pressure sensor is arranged In 100 oil outlet of oil filter, the impurity retaining pressure sensor in machine oil can also be prevented, pressure sensor is caused to be examined What is measured goes out oil pressure inaccuracy or pressure sensor failure, and can not detect gear type oil pump completely goes out oil pressure.

Further, controller 120 can be vehicle ECU, the tooth that ECU can be detected according to pressure-detecting device 110 The actual condition information (for example, rotary speed information etc.) for going out oil pressure and engine of wheeled lubricating oil pump judges the current work of engine Oil level needed under condition adjusts the oil pressure in pressure control oil pocket 7, and then adjust to control the aperture of pressure-control valve 9 The engagement area of driving gear 1 and driven gear 3.

According to another aspect of the disclosure, a kind of vehicle is provided, including above-mentioned engine.

The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure Monotropic type, these simple variants belong to the protection scope of the disclosure.

It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure to it is various can No further explanation will be given for the combination of energy.

In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally Disclosed thought equally should be considered as disclosure disclosure of that.

Claims (10)

1. a kind of gear type oil pump characterized by comprising

Driving gear (1)；

Driven gear shaft (4)；

Driven gear (3) is mounted on the driven gear shaft (4) and engages with the driving gear (1)；

The pump housing (8), the driving gear (1), the driven gear (3), the driven gear shaft (4) are arranged in the pump housing (8) in；

Pressure controls oil pocket (7), described driven to change for driving the driven gear (3) mobile along first direction (A1) The engagement area of gear (3) and the driving gear (1)；

Pressure-control valve (9), for controlling the oil pressure size in pressure control oil pocket (7)；

First elastic component (5), for driving the driven gear (3) along the second direction opposite with the first direction (A1) (A2) mobile, so that the driven gear (3) resets；

Second elastic component (6), for driving the driven gear (3) along the first direction in pressure control oil pocket (7) (A1) power-assisted is provided when mobile, and drives the driven gear (3) along the second direction in first elastic component (5) (A2) resistance is provided when mobile.

2. gear type oil pump according to claim 1, which is characterized in that the driven gear (3) relative to it is described from Movable gear shaft (4) is axially movable, and pressure control oil pocket (7) Xiang Suoshu driven gear (3) applies along the first direction (A1) hydraulic coupling, the first elastic component (5) Xiang Suoshu driven gear (3) apply the first bullet along the second direction (A2) Property power, the second elastic component (6) Xiang Suoshu driven gear (3) applies the second elastic force along the first direction (A1), institute The first elastic force is stated more than or equal to second elastic force.

3. gear type oil pump according to claim 1, which is characterized in that the driven gear shaft (4) is relative to described The pump housing (8) is axially movable, the driven gear (3) and the driven gear shaft (4) axially opposing fixation, the pressure control Oil pocket (7) Xiang Suoshu driven gear (3) or the driven gear shaft (4) apply the hydraulic coupling along the first direction (A1), institute It states the first elastic component (5) Xiang Suoshu driven gear (3) or the driven gear shaft (4) and applies the along the second direction (A2) One elastic force, the second elastic component (6) Xiang Suoshu driven gear (3) or the driven gear shaft (4) apply along described first Second elastic force in direction (A1), first elastic force are greater than or equal to second elastic force.

4. gear type oil pump according to any one of claim 1-3, which is characterized in that second elastic component (6) For one or more.

5. gear type oil pump described in any one of -2 according to claim 1, which is characterized in that first elastic component (5) For the first spring, first spring is set on the driven gear shaft (4), and second elastic component (6) is second spring, The second spring is set on the driven gear shaft (4).

6. gear type oil pump according to any one of claim 1-3, which is characterized in that first elastic component (5) One end far from the driven gear (3) is supported with the pump housing (8), and second elastic component (6) is far from the driven gear (3) one end is supported with the pump housing (8), offers the first locating slot and the second locating slot on the pump housing (8), and described first Elastic component (5) is supported far from the one end of the driven gear (3) with first locating slot, and second elastic component (6) is separate It is supported with second locating slot one end of the driven gear (3).

7. gear type oil pump according to claim 1, which is characterized in that the pressure-control valve (9) is ratio electromagnetism Valve.

8. a kind of engine, which is characterized in that including gear type oil pump of any of claims 1-7.

9. engine according to claim 8, which is characterized in that the oil outlet of the gear type oil pump and the gear The oil inlet of the pressure-control valve (9) of formula lubricating oil pump is connected to, the oil outlet and the gear type machine oil of the pressure-control valve (9) Pressure control oil pocket (7) connection of pump, the engine further includes pressure-detecting device (110) and controller (120), the pressure Force checking device (110) is used to detect the oil pressure that goes out of the gear type oil pump, and the controller (120) is used for according to What pressure-detecting device (110) detected goes out the work information control pressure-control valve (9) of oil pressure and the engine Aperture.

10. a kind of vehicle, which is characterized in that including engine described in any one of claim 8-9.