CN109139895A - A kind of double pump fuel feeding and lubricating and cooling system - Google Patents
A kind of double pump fuel feeding and lubricating and cooling system Download PDFInfo
- Publication number
- CN109139895A CN109139895A CN201811367238.2A CN201811367238A CN109139895A CN 109139895 A CN109139895 A CN 109139895A CN 201811367238 A CN201811367238 A CN 201811367238A CN 109139895 A CN109139895 A CN 109139895A
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- Prior art keywords
- branch
- oil
- valve
- mechanical
- oil pump
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
- F16H61/0031—Supply of control fluid; Pumps therefore using auxiliary pumps, e.g. pump driven by a different power source than the engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
- F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H2061/0037—Generation or control of line pressure characterised by controlled fluid supply to lubrication circuits of the gearing
Abstract
The invention discloses a kind of double pump fuel feeding and lubricating and cooling systems, including engine, mechanical oil pump, electronic oil pump, switch valve, principal pressure mechanical slide valve, principal pressure solenoid valve and control system, the mechanical oil pump is connect with the driving engine, the oil inlet of the mechanical oil pump is connected to oil sump by pipeline, and the oil outlet of the mechanical oil pump is communicated with the first branch, second branch, third branch, the 4th branch and the 5th branch；The oil inlet of the electronic oil pump is connected to the oil sump by pipeline, and the oil outlet of the electronic oil pump is communicated with the 6th branch and the 7th branch.Compared with prior art, present invention accomplishes vehicle static start-stop and the demand for sliding start and stop, clutch cooling flow demand under the slow-speed of revolution is met, reduces energy waste when the high revolving speed of engine, improves gearbox transmission efficiency.
Description
Technical field
The present invention relates to gearbox oil supply system technical field, especially a kind of double pump fuel feeding and lubricating and cooling system.
Background technique
As Chinese market is got on the car being continuously increased of sales volume, for being matched with automatic gear-box vehicle on domestic market
Demand is also being continuously increased simultaneously, and domestic majority main engine plants have also carried out the research and development of dual-clutch transmission.Currently, each master
Machine factory copes with the environmental problem got worse and harsh emission regulation demands by improving gearbox transmission efficiency, and hydraulic
The design of system oil supply system and lubricating system, is a highly important link, and the design of the system directly affects gearbox
The height of efficiency.
Existing gearbox oil supply system only has an engine-driven oil pump, in the state of engine stop, nothing
Method provides control oil for system, realizes pre- combination and the pre-oiling of clutch of gear, and after engine start, mechanical pump is
Work can be started, meet above-mentioned requirements, responded when vehicle being caused to start to walk slow.
Summary of the invention
The object of the present invention is to provide a kind of double pump fuel feeding and lubricating and cooling systems, are asked with solving technology in the prior art
Topic, it can satisfy clutch cooling flow demand under the slow-speed of revolution, reduces energy waste when the high revolving speed of engine, improves speed change
Case transmission efficiency.
The present invention provides a kind of double pump fuel feeding and lubricating and cooling system, including engine, mechanical oil pump, electronic oil pump,
Switch valve, principal pressure mechanical slide valve, principal pressure solenoid valve and control system, in which:
The mechanical oil pump is connect with the driving engine, and the oil inlet of the mechanical oil pump is connected to oil by pipeline
Pond, the oil outlet of the mechanical oil pump are communicated with the first branch, second branch, third branch, the 4th branch and the 5th branch；
Wherein,
The first branch is connected to the control mouth of the switch valve；
The second branch is connected to the oil inlet of the principal pressure solenoid valve, and the oil outlet of the principal pressure solenoid valve is logical
Piping is connected to the right end control mouth of the principal pressure mechanical slide valve；
The third branch is connected to the oil inlet of the principal pressure mechanical slide valve；
4th branch is connected to the left end control mouth of the principal pressure mechanical slide valve；
5th branch is connected to the control system；
The oil inlet of the electronic oil pump is connected to the oil sump by pipeline, and the oil outlet of the electronic oil pump is communicated with
6th branch and the 7th branch, wherein
6th branch is connected to the oil inlet of the first check valve, the oil outlet of first check valve and described second
Branch connection；
7th branch is connected to the oil inlet of the switch valve, the switch valve and the principal pressure mechanical slide valve
Oil outlet passes through pipeline and is connected to clutch and gear set.
Double pump fuel feeding and lubricating and cooling system as described above, wherein preferably, the switch valve and the principal pressure
The oil outlet of mechanical slide valve passes through the oil inlet that pipeline is connected to cooling flow solenoid valve, and the cooling flow solenoid valve goes out
Hydraulic fluid port is communicated with the 8th branch and the 9th branch, and the 8th branch is connected to the clutch, and the 9th branch is connected to
The gear set.
Double pump fuel feeding and lubricating and cooling system as described above, wherein preferably, the oil outlet of the mechanical oil pump connects
It is connected with the tenth branch, the tenth branch is connected to the oil inlet of safety unloading valve, and the oil outlet of the safety unloading valve passes through
Pipeline is connected to the oil inlet of the mechanical oil pump.
Double pump fuel feeding and lubricating and cooling system as described above, wherein preferably, the principal pressure mechanical slide valve goes out
Hydraulic fluid port has been arranged in parallel the 11st branch and twelve earthly branches road, and the 11st branch and twelve earthly branches road are connected to institute
The oil inlet of cooling flow solenoid valve is stated, the 11st road flows through direction along oil liquid and be disposed with cooler and pressure
Power filter, by-passing valve is parallel on the filter-press, and the twelve earthly branches road is provided with second one-way valve.
Double pump fuel feeding and lubricating and cooling system as described above, wherein preferably, the switch valve is 2/2-way machine
Tool slide valve, the principal pressure slide valve are 3-position-3-way mechanical slide valve, and the principal pressure solenoid valve is two-bit triplet line pressure electricity
Magnet valve, the cooling flow solenoid valve are two-bit triplet linear solenoid valve.
Compared with prior art, the present invention is worked when engine does not start by electronic oil pump, can provide system use
Oil, realize gear pre- engagement and clutch it is pre-filled, while distributing a part of oil liquid to cooling and lubricating system branch, it is full
Foot vehicle static start-stop and the demand for sliding start and stop, meet clutch cooling flow demand under the slow-speed of revolution, reduce and start
Energy waste when the high revolving speed of machine, improves gearbox transmission efficiency.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure.
Description of symbols: 1- engine, 2- mechanical oil pump, 3- electronic oil pump, 4- switch valve, 5- principal pressure machinery are sliding
Valve, 6- principal pressure solenoid valve, 7- control system, 8- oil sump, the 9- first branch, 10- second branch, 11- third branch, 12-
Four branches, the 5th branch of 13-, the 6th branch of 14-, the 7th branch of 15-, the first check valve of 16-, 17- clutch, 18- gear set,
19- cooling flow solenoid valve, the 8th branch of 20-, the 9th branch of 21-, the tenth branch of 22-, 23- safety unloading valve, 24- the 11st
Branch, 25- twelve earthly branches road, 26- cooler, 27- filter-press, 28- by-passing valve, 29- second one-way valve, 30- suction-type
Filter.
Specific embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, for explaining only the invention, and cannot be construed to
Limitation of the present invention.
As shown in Figure 1, the embodiment provides a kind of double pump fuel feeding and lubricating and cooling system, including engine 1,
Mechanical oil pump 2, electronic oil pump 3, switch valve 4, principal pressure mechanical slide valve 5, principal pressure solenoid valve 6 and control system 7, in which:
The mechanical oil pump 2 is sequentially connected with the engine 1, and the oil inlet of the mechanical oil pump 2 is connected by pipeline
To oil sump 8, oil liquid is from oil sump 8, into suction-type filter 30, then arrive separately at mechanical oil pump 2 and electronic oil pump 3 into
Hydraulic fluid port, mechanical oil pump 2 are converted into high pressure oil under the driving of engine 1, by the oil liquid of low pressure, reach going out for mechanical oil pump 2
Hydraulic fluid port, the oil outlet of the mechanical oil pump 2 be communicated with the first branch 9, second branch 10, third branch 11, the 4th branch 12 with
And the 5th branch 13；Wherein,
The first branch 9 is connected to the control mouth of the switch valve 4；The second branch 10 is connected to the principal pressure
The oil outlet of the oil inlet of solenoid valve 6, the principal pressure solenoid valve 6 is connected to the principal pressure mechanical slide valve 5 by pipeline
Right end control mouth；The third branch 11 is connected to the oil inlet of the principal pressure mechanical slide valve 5；4th branch 12 connection
To the left end control mouth of the principal pressure mechanical slide valve 5；5th branch 13 is connected to the control system 7, for control system
System 7 provides pressure and controls oil liquid.
The oil inlet of the electronic oil pump 3 is connected to the oil sump 8 by pipeline, the oil separated from suction-type filter 30
Liquid, into the oil inlet of electronic oil pump 3, electronic oil pump 3 is transported to electronics oil under the drive of the motor, in the low pressure oil of oil inlet
The oil outlet of pump 3, is transformed into high pressure oil, and the oil outlet of the electronic oil pump 3 is communicated with the 6th branch 14 and the 7th branch 15,
In, the 6th branch 14 is connected to the oil inlet of the first check valve 16, the oil outlet of first check valve 16 and described the
The connection of two branches 10；7th branch 15 is connected to the oil inlet of the switch valve 4, the switch valve 4 and the principal pressure
The oil outlet of mechanical slide valve 5 passes through pipeline and is connected to clutch 17 and gear set 18.
Switch valve 4 works at first position (current location), and oil liquid ends in oil inlet, leads to the 6th branch 14 and the
Seven branches, 15 oil pressure rises, and is more than when 14 pressure of the 6th branch is greater than second branch 10 (other side of the first check valve 16) pressure
When certain definite value, such as 0.3bar, the first check valve 16 are opened, and oil liquid flows to second branch 10 from the 6th branch 14；When switch valve 4
Control mouth acted on by 10 pressure of second branch, such as pressure is greater than 9bar, and switch valve 4 is switched to the second operating position, electricity
The pressure oil of 3 output of seed oil pump flows to oil outlet by switch valve 4, is then connected to clutch 17 and gear set by pipeline
18。
The collaborative work principle of mechanical pump and electronic oil pump 3:
1) when engine 1 does not work, mechanical oil pump 2 does not work, and electronic oil pump 3 works, and switch valve 4 is located at present bit
It sets, by the pressure to the control of principal pressure solenoid valve 6 outlet, so that the pressure of the first branch 9 is less than 9bar, electronic oil pump 3 is defeated
Oil liquid out is input to second branch 10 by the first check valve 16, provides control oil to control system 7 and passes through principal pressure
Mechanical slide valve 5 provides cooling and lubricating oil to cooling branch.The control of offer oil can be used for the engagement in advance of gear with
17 pre-oiling of clutch.
2) when engine 1 starts work, revolving speed is controlled in 800-2500rpm, and mechanical oil pump 2 is started to work, electronics oil
Pump 3 works at the same time, by being opened so that the pressure of the first branch 9 is less than 9bar the pressure of the control of principal pressure solenoid valve 6 outlet
It closes valve 4 still to work in current location, mechanical oil pump 2 and electronic oil pump 3 can provide system oil simultaneously for third branch 11.
3) when engine 1 starts work, revolving speed is controlled in 800-2500rpm, and mechanical oil pump 2 is started to work, electronics oil
Pump 3 works at the same time, by being opened so that the pressure of the first branch 9 is greater than 9bar the pressure of the control of principal pressure solenoid valve 6 outlet
The work of valve 4 is closed in the second position, while the first check valve 16 is closed, mechanical oil pump 2 is that third branch 11 provides system oil, electricity
Seed oil pump 3 provides oil liquid by the oil outlet of switch valve 4, supplements 17 cooling oil of clutch.
4) when engine 1 works, after revolving speed is greater than 2500rpm, mechanical oil pump 2 works, and the oil liquid provided, which has met, is
The demand of system, electronic oil pump 3 stop working, no longer the output of offer oil liquid.
In the cooling and lubricating branch of existing scheme, under 1 slow-speed of revolution of engine, the oil liquid of cooling branch output distributes simultaneously
It is lubricated to clutch 17 is cooling with gear set 18, is unable to satisfy the cooling requirement of clutch 17, be easy to cause the burning of clutch 17
Erosion.Therefore, further, the switch valve 4 and the oil outlet of the principal pressure mechanical slide valve 5 pass through pipeline and are connected to cooling
The oil outlet of the oil inlet of flow solenoid valve 19, the cooling flow solenoid valve 19 is communicated with the 8th branch 20 and the 9th branch
21, the 8th branch 20 is connected to the clutch 17, and the 9th branch 21 is connected to the gear set 18.
It, can by the control work of cooling flow solenoid valve 19 in different positions by the way that cooling flow solenoid valve 19 is arranged
With preferential guarantee when mechanical oil pump 2 does not work, and electronic oil pump 3 works, the lubrication needs of gear set 18；It can control simultaneously
When cooling flow solenoid valve 19 adjusts the 8th 20 flow area of branch, 20 flow area of the 8th branch is also adjusted accordingly,
Ensure that the lubrication flow of gear set 18 is relatively stable.
The working principle of cooling flow solenoid valve 19:
1) the 8th branch 20 of cooling flow solenoid valve 19 and the flow area of the 9th branch 21 are with cooling flow solenoid valve
19 reduce to the first operating position transition, it is ensured that in adjusting 20 oil liquid discharge process of the 8th branch, the oil of the 9th branch 21
Flow quantity is able to maintain in metastable range, when cooling flow solenoid valve 19 is in the second operating position, the 8th branch
20 close, and 21 through-current capability of the 9th branch reaches minimum.
2) when 1 revolving speed of engine does not work, mechanical oil pump 2 does not work, and the work of electronic oil pump 3 provides about 3-5L/min oil
Amount, at this time in order to preferentially meet the lubrication needs of gear set 18, the work of control cooling flow solenoid valve 19 in the second operating position,
The 8th branch 20 is cut off, cooling fuel feeding is stopped, and keeps the connection of the 9th branch 21, guarantees lubrication flow.
3) when engine 1 works, and revolving speed is less than 2500rpm, mechanical oil pump 2 exports oil liquid, the cooperation output of electronic oil pump 3
Oil liquid, system fuel delivery has been able to satisfy 18 lubrication needs of gear set at this time, and the control work of cooling flow solenoid valve 19 is the first work
Make position, so that oil inlet is connected to the 8th branch 20 and the 9th branch 21 respectively, realizes the cooling fuel feeding of 1 clutch 17 and gear
18 lubrication oil supplies of group.
4) when engine 1 works, and revolving speed is greater than 2500rpm, the fuel cut-off of electronic oil pump 3, and mechanical oil pump 2 exports
Oil liquid flow has been more than cooling and lubricating system oil mass, can control cooling flow solenoid valve 19 at this time to the second operating position mistake
It crosses, achievees the purpose that adjust cooling and lubricating flow.
The oil outlet of the mechanical oil pump 2 is communicated with the tenth branch 22, and the tenth branch 22 is connected to safety unloading valve
23 oil inlet, the oil outlet of the safety unloading valve 23 are connected to the oil inlet of the mechanical oil pump 2 by pipeline.
Further, the oil outlet of the mechanical oil pump 2 is communicated with the tenth branch 22, and the tenth branch 22 is connected to peace
The oil inlet of full unloading valve 23, the oil outlet of the safety unloading valve 23 are connected to the oil inlet of the mechanical oil pump 2 by pipeline
Mouthful, when the pressure of system reaches certain pressure, such as 30bar, the off-load of pressure may be implemented, oil liquid returns to mechanical oil pump 2
Oil inlet.
Further, the oil outlet of the principal pressure mechanical slide valve 5 has been arranged in parallel the 11st branch 24 and twelve earthly branches
Road 25, the 11st branch 24 and twelve earthly branches road 25 are connected to the oil inlet of the cooling flow solenoid valve 19,
Direction, which is flowed through, along oil liquid on 11st branch 24 is disposed with cooler 26 and filter-press 27, the pressure mistake
It is parallel with by-passing valve 28 on filter 27, is provided with second one-way valve 29 on twelve earthly branches road 25.When filter-press 27 is sent out
When raw blocking, oil liquid can be flowed through from by-passing valve 28, reach the oil inlet of cooling flow solenoid valve 19；And when by twelve earthly branches
25 oil liquid of road reaches the side of second one-way valve 29, when the pressure difference of 29 two sides of second one-way valve is more than certain certain value, such as
(when obstruction or low temperature, room temperature occur for cooler 26, cooling and lubricating demand volume is excessive, can lead to second one-way valve by 3bar
29 pressure at both sides differences are greater than 3bar), second one-way valve 29 is opened, and increases the through-current capability of system, oil liquid passes through second one-way valve
29 reach the oil inlet of cooling flow solenoid valve 19, reduce system branch because of hardware fault (such as cooler 26 blocks) or temperature
The reasons such as degree variation lead to the insufficient risk of system branch through-current capability, and the system through-current capability met under different operating conditions needs
It asks.
Further, the switch valve 4 is 2/2-way mechanical slide valve, and the principal pressure slide valve is sliding for 3-position-3-way machinery
Valve, the principal pressure solenoid valve 6 are two-bit triplet line pressure solenoid valve, and the cooling flow solenoid valve 19 is two-bit triplet line
Property solenoid valve, it is ensured that still can be to cooling branch fuel feeding in cooling flow 19 failure of solenoid valve.
Structure, feature and effect of the invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (5)
1. a kind of double pump fuel feeding and lubricating and cooling system, which is characterized in that including engine, mechanical oil pump, electronic oil pump, switch
Valve, principal pressure mechanical slide valve, principal pressure solenoid valve and control system, in which:
The mechanical oil pump is connect with the driving engine, and the oil inlet of the mechanical oil pump is connected to oil sump by pipeline,
The oil outlet of the mechanical oil pump is communicated with the first branch, second branch, third branch, the 4th branch and the 5th branch；Its
In,
The first branch is connected to the control mouth of the switch valve；
The second branch is connected to the oil inlet of the principal pressure solenoid valve, and the oil outlet of the principal pressure solenoid valve passes through pipe
Road is connected to the right end control mouth of the principal pressure mechanical slide valve；
The third branch is connected to the oil inlet of the principal pressure mechanical slide valve；
4th branch is connected to the left end control mouth of the principal pressure mechanical slide valve；
5th branch is connected to the control system；
The oil inlet of the electronic oil pump is connected to the oil sump by pipeline, and the oil outlet of the electronic oil pump is communicated with the 6th
Branch and the 7th branch, wherein
6th branch is connected to the oil inlet of the first check valve, the oil outlet of first check valve and the second branch
Connection；
7th branch is connected to the oil inlet of the switch valve, the switch valve and the principal pressure mechanical slide valve it is fuel-displaced
Mouth is connected to clutch and gear set by pipeline.
2. double pump fuel feeding according to claim 1 and lubricating and cooling system, it is characterised in that: the switch valve and the master
The oil outlet of press slide valve passes through the oil inlet that pipeline is connected to cooling flow solenoid valve, the cooling flow solenoid valve
Oil outlet be communicated with the 8th branch and the 9th branch, the 8th branch is connected to the clutch, and the 9th branch connects
Pass to the gear set.
3. double pump fuel feeding according to claim 2 and lubricating and cooling system, it is characterised in that: the mechanical oil pump it is fuel-displaced
Mouth is communicated with the tenth branch, and the tenth branch is connected to the oil inlet of safety unloading valve, the oil outlet of the safety unloading valve
The oil inlet of the mechanical oil pump is connected to by pipeline.
4. double pump fuel feeding according to claim 3 and lubricating and cooling system, it is characterised in that: the principal pressure mechanical slide valve
Oil outlet be arranged in parallel the 11st branch and twelve earthly branches road, the 11st branch is connected to twelve earthly branches road
To the oil inlet of the cooling flow solenoid valve, the 11st road flows through direction along oil liquid and is disposed with cooler
And filter-press, by-passing valve is parallel on the filter-press, the twelve earthly branches road is provided with second one-way valve.
5. double pump fuel feeding according to claim 4 and lubricating and cooling system, it is characterised in that: the switch valve is two two
Logical mechanical slide valve, the principal pressure slide valve are 3-position-3-way mechanical slide valve, and the principal pressure solenoid valve is that two-bit triplet is linearly pressed
Power solenoid valve, the cooling flow solenoid valve are two-bit triplet linear solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367238.2A CN109139895A (en) | 2018-11-16 | 2018-11-16 | A kind of double pump fuel feeding and lubricating and cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367238.2A CN109139895A (en) | 2018-11-16 | 2018-11-16 | A kind of double pump fuel feeding and lubricating and cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139895A true CN109139895A (en) | 2019-01-04 |
Family
ID=64806081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811367238.2A Pending CN109139895A (en) | 2018-11-16 | 2018-11-16 | A kind of double pump fuel feeding and lubricating and cooling system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487555A (en) * | 2019-08-30 | 2019-11-22 | 中国船舶重工集团柴油机有限公司 | A kind of marine low speed diesel engine lubricating oil pilot system |
| CN110985653A (en) * | 2019-12-19 | 2020-04-10 | 中国第一汽车股份有限公司 | Hydraulic oil supply system of automatic transmission |
| CN112178183A (en) * | 2020-09-29 | 2021-01-05 | 东风汽车集团有限公司 | Electro-hydraulic control system of multi-gear hybrid power gearbox |
| CN112503377A (en) * | 2020-12-09 | 2021-03-16 | 安徽江淮汽车集团股份有限公司 | Clutch control and lubrication system |
| CN112594367A (en) * | 2021-03-02 | 2021-04-02 | 北京航空航天大学 | Multi-path distribution cooling and lubricating system of pure electric or hybrid power driving system |
| CN113700839A (en) * | 2021-07-23 | 2021-11-26 | 重庆青山工业有限责任公司 | Oil cooling lubricating system of hybrid power transmission |
| CN113757354A (en) * | 2021-10-11 | 2021-12-07 | 安徽江淮汽车集团股份有限公司 | Control method and device for electronic oil pump of automatic gearbox |
| CN113790259A (en) * | 2021-09-14 | 2021-12-14 | 安徽江淮汽车集团股份有限公司 | Oil supply and lubricating and cooling system |
| CN114215903A (en) * | 2021-11-23 | 2022-03-22 | 宁波圣龙汽车动力系统股份有限公司 | Integrated reversible lubricating oil pump |
| CN114396472A (en) * | 2021-10-12 | 2022-04-26 | 华为数字能源技术有限公司 | Power assembly and vehicle |
| CN115875438A (en) * | 2023-03-03 | 2023-03-31 | 北京航空航天大学 | Active accurate cooling and lubricating distribution structure of hybrid transmission system and control method |
| CN117537066A (en) * | 2024-01-10 | 2024-02-09 | 北京航空航天大学 | Forced cooling lubrication hydraulic control system for motor and starting clutch of hybrid transmission |
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| CN113700839A (en) * | 2021-07-23 | 2021-11-26 | 重庆青山工业有限责任公司 | Oil cooling lubricating system of hybrid power transmission |
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| US11906037B2 (en) | 2021-10-12 | 2024-02-20 | Huawei Digital Power Technologies Co., Ltd. | Cooling and lubricating oil paths for power assembly and vehicle |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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Application publication date: 20190104 |