CN107816541A - Hydraulic gear-shifting system with flow stabilization apparatus - Google Patents
Hydraulic gear-shifting system with flow stabilization apparatus Download PDFInfo
- Publication number
- CN107816541A CN107816541A CN201711274679.3A CN201711274679A CN107816541A CN 107816541 A CN107816541 A CN 107816541A CN 201711274679 A CN201711274679 A CN 201711274679A CN 107816541 A CN107816541 A CN 107816541A
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- Prior art keywords
- oil
- valve
- port
- brake
- clutch
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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
- F16H61/02—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 characterised by the signals used
- F16H61/0262—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 characterised by the signals used the signals being hydraulic
- F16H61/0265—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 characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
- F16H61/0267—Layout of hydraulic control circuits, e.g. arrangement of valves
-
- 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
- F16H61/02—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 characterised by the signals used
- F16H61/0262—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 characterised by the signals used the signals being hydraulic
- F16H61/0276—Elements specially adapted for hydraulic control units, e.g. valves
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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
- F16H61/04—Smoothing ratio shift
- F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
- F16H61/065—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means
-
- 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
- F16H61/02—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 characterised by the signals used
- F16H61/0262—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 characterised by the signals used the signals being hydraulic
- F16H61/0276—Elements specially adapted for hydraulic control units, e.g. valves
- F16H2061/0279—Details of hydraulic valves, e.g. lands, ports, spools or springs
-
- 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
- F16H61/04—Smoothing ratio shift
- F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
- F16H61/065—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means
- F16H61/067—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means using an accumulator
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Transmission Device (AREA)
Abstract
The present invention relates to the hydraulic gear-shifting system with flow stabilization apparatus, including shift module, is connected by working connection with pump oil module, and working connection is provided with the lubrication branch road of oil cooler and cooling and lubricating parts；Also include oil pressure ratio compared with valve, the oil inlet of the left and right ends of the valve element of oil pressure respectively with oil cooler oil-out and lubrication branch road is connected, and drain tap and the oil inlet connected with oil pump out of the mouth are additionally provided with valve body；The oil pressure collective effect of oil pressure and oil pump out of the mouth at the oil pressure in oil cooler exit, lubrication branch road is on valve element, when the force unbalance of valve element left end and right-hand member, valve element, which slides, causes the aperture size of drain tap changes the hydraulic oil of oil inlet into valve body is let out into oil return drain pan.Hydraulic gear-shifting system with flow stabilization apparatus is by setting oil pressure ratio to be effectively guaranteed compared with valve the stabilization of hydraulic fluid flow rate in shifting system, the oil pressure in shifting system is adjusted in real time compared with valve for oil pressure ratio, the reliable of gear shift operation is ensure that, drive safety improves.
Description
Technical field
The present invention relates to the hydraulic gear-shifting system with flow stabilization apparatus.
Background technology
As people require more and more higher, the dynamic power shift gear box application in engineering machinery at home for shift quality
Also increasingly popularize.The key property of dynamic power shift gear box is exactly shift gears stationarity and rapidity, is delayed mainly by hydraulic gear-shifting
Valve control shift clutch is rushed to ensure.In the prior art, the control of clutch or brake not only needs control valve control of shifting gears
Liquefaction road, it is also necessary to which solenoid valve control is shifted gears control valve, causes control system component more and system complex.If in addition, oil circuit
Upper instability of flow, can cause the parts that need to lubricate then can performance it is unstable, cause the overall hydraulic performance decline of speed changer.
The content of the invention
The technical problems to be solved by the invention are to provide that a kind of oil circuit is simple and oil circuit stability of flow has flow steady
Determine the hydraulic gear-shifting system of device.
In order to solve the above technical problems, the technical scheme is that：Hydraulic gear-shifting system with flow stabilization apparatus,
Including shift module, the shift module includes several brakes and clutch, and the brake and the clutch pass through master
Oil circuit connects with pump oil module, in addition to several magnetic valves for controlling the brake and clutch respectively；On the working connection
Lubrication branch road provided with oil cooler and cooling and lubricating parts；Also valve body is provided with including oil pressure ratio compared with valve compared with valve, the oil pressure ratio
And valve element, the left and right ends of the valve element connect with the oil cooler oil-out and the oil inlet for lubricating branch road respectively, institute
State the oil inlet that drain tap is additionally provided with valve body and is connected with oil pump out of the mouth；Oil pressure, the lubrication branch road in oil cooler exit
The oil pressure at place and the oil pressure collective effect of oil pump out of the mouth on the valve element, wherein, the hydraulic oil in oil cooler exit is in institute
The thrust of the left end application of valve element to the right is stated, the hydraulic oil at branch road is lubricated and applies thrust to the left in the right-hand member of the valve element,
The hydraulic oil that oil inlet enters also gives the thrust that the valve element is moved to the left it, when the stress of valve element left end and right-hand member is uneven
During weighing apparatus, the valve element, which slides, causes the aperture size of drain tap changes the hydraulic oil of oil inlet into valve body is let out into oil return drain pan.
As preferable technical scheme, energy-storaging spring is additionally provided between the left end of the valve element and the valve body.
As preferable technical scheme, in addition to mechanical pump, electric pump and mechanical selector valve, the mechanical selector valve control institute
State that mechanical pump connects with working connection and the electric pump connects with lubricant passage way；The opening end and mechanical pump of the mechanical selector valve
Oil-out connection.
As preferable technical scheme, the magnetic valve includes magnet coil and valve body, and the valve body is provided with the first regulation
Port, the second regulation port, normally opened port and overflow port；Under the magnet coil off-position, the second regulation port
In opening, the first regulation port is closed；The magnet coil is powered, the first regulation port and
The second regulation port aperture size realizes that the different oil pressure in normally opened port is defeated with the size of current adjustment of the magnet coil
Go out.
As preferable technical scheme, the shift module includes the first brake B1, second brake B2, the 3rd braking
Device B3, first clutch C1 and second clutch C2, the magnetic valve include the first electromagnetism for controlling the first brake B1
Valve B1_cv；Control the second solenoid valve B2_cv of the second brake B2；Control the 3rd electromagnetism of the 3rd brake B3
Valve B3_cv；Control the 4th magnetic valve C1_cv of the first clutch C1；Control the 5th electromagnetism of the second clutch C2
Valve C2_cv；
Wherein, the second regulation port of the first magnetic valve B1_cv connects with the working connection, and the first regulation port connects
Oil-piping is taken back, normally opened port connects with the first brake B1；
The first regulation port of the 5th magnetic valve C2_cv connects with the working connection, and the second regulation port connects back to
Oil-piping, normally opened port connect with the second clutch C2；
The second regulation port of the 3rd magnetic valve B3_cv includes first port and second port, first port and institute
Working connection connection is stated, second port connects with second solenoid valve B2_cv the first regulation port；First regulation port connects back to oil
Pipeline, normally opened port connect with the first brake B3；
The second regulation port of the second solenoid valve B2_cv connects back to oil-piping；Normally opened port and the described first braking
Device B2 is connected；
The first regulation port of the 4th magnetic valve C1_cv connects with the working connection, and the second regulation port connects back to
Oil-piping, normally opened port connect with the second clutch C1.
As preferable technical scheme, the working connection is provided with several accumulators.
By adopting the above-described technical solution, the hydraulic gear-shifting system with flow stabilization apparatus, set at oil pump out of the mouth
Oil pressure ratio is put compared with valve, oil pressure ratio compared with valve from oil circuit three at take oil pressure, be the oil pressure in oil cooler exit respectively, at lubrication branch road
Oil pressure and oil pump out of the mouth at oil pressure；Wherein, from the hydraulic oil in oil cooler exit the left end of the valve element apply to
Right thrust, lubricate the hydraulic oil at branch road and apply thrust to the left, the hydraulic oil that oil inlet enters in the right-hand member of the valve element
Also the thrust that the valve element is moved to the left it is given, when the force unbalance of valve element left end and right-hand member, the valve element slides
And then change the aperture size of drain tap.When oil mass exceedes preset flow on oil circuit, the aperture of drain tap is big, fuel pump outlet
Excessive oil is back in oil sump through drain tap, avoids flowed fluctuation on working connection, ensure that with the performance of oily part
It is stable.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the hydraulic schematic diagram of pump oil module in the embodiment of the present invention；
Fig. 2 is the hydraulic schematic diagram of shift module in the embodiment of the present invention；
Fig. 3 is the schematic diagram of magnetic valve in the embodiment of the present invention；
Fig. 4 is the shift logic figure of the present invention.
Embodiment
As depicted in figs. 1 and 2, there is the hydraulic gear-shifting system of flow stabilization apparatus, the working connection is provided with oil cooler
15 and the lubrication branch road 17 of cooling and lubricating parts；The pump oil module is set provided with oil pressure ratio compared with valve 8, the oil pressure ratio compared with valve 8
There are valve body and valve element, valve body is provided with the first port 9 connected with oil cooler oil-out, is connected at the oil-feed with lubrication branch road
Second port 10, the 3rd port 12 connected with oil pump out of the mouth and by drain tap 11.First port 9 and second port 10
It is located at the left and right ends of the valve element respectively.Oil pressure and oil inlet at the oil pressure in the exit of oil cooler 15, lubrication branch road 17
Oil pressure collective effect on the valve element, wherein, from the hydraulic oil in the exit of oil cooler 15 the left end of the valve element apply to
Right thrust, lubricate the hydraulic oil at branch road 17 and apply thrust to the left, the hydraulic pressure that oil inlet enters in the right-hand member of the valve element
Oil also gives the thrust that the valve element is moved to the left it, and when the force unbalance of valve element left end and right-hand member, the valve element is slided
Aperture size that is dynamic and then changing drain tap.Drain tap 11 is passed through compared with the excessive oil mass that valve 8 can pump out oil pump by oil pressure ratio
Oil sump is flowed back to, stablizes the flow of hydraulic oil in shifting system.Further, between the left end of the valve element and the valve body also
Provided with energy-storaging spring, energy-storaging spring maintains the closing of drain tap 11.
Pump oil module includes mechanical pump 7, electric pump 13 and mechanical selector valve 14, and the mechanical selector valve 14 controls the machinery
Pump 7 connects with working connection g and the electric pump 13 connects with lubricant passage way f；The opening end of the mechanical selector valve 14 and machinery
The oil-out connection of pump 7.
Also include shift module, the shift module includes several brakes and clutch, the brake and it is described from
Clutch is connected by working connection g with pump oil module, in addition to several magnetic valves for controlling the brake and clutch respectively.Such as
Shown in Fig. 3, the magnetic valve includes magnet coil 2 and valve body 1, and the valve body 1 is provided with the first regulation port 3, the second adjustable side
Mouth 4, normally opened port 5 and overflow port 6；Under the magnet coil off-position, the second regulation port 4 is in opening state
State, the first regulation port 3 are closed；The magnet coil 2 is powered, the first regulation port 3 and described the
The two regulation aperture sizes of port 4 realize that the different oil pressure in normally opened port 5 exports with the size of current adjustment of the magnet coil 2.
The shift module include the first brake B1, second brake B2, the 3rd brake B3, first clutch C1 and
Second clutch C2, the magnetic valve include the first magnetic valve B1_cv for controlling the first brake B1；Control described second
Brake B2 second solenoid valve B2_cv；Control the 3rd magnetic valve B3_cv of the 3rd brake B3；Control described first
Clutch C1 the 4th magnetic valve C1_cv；Control the 5th magnetic valve C2_cv of the second clutch C2；Wherein, described first
Magnetic valve B1_cv the second regulation port connects with the working connection g, and the first regulation port connects back to oil-piping, normally opened port
Connected with the first brake B1；The first regulation port of the 5th magnetic valve C2_cv connects with the working connection g, the
Two regulation ports connect back to oil-piping, and normally opened port connects with the second clutch C2；The of the 3rd magnetic valve B3_cv
Two regulation ports include first port and second port, and first port connects with the working connection g, second port and the second electromagnetism
Valve B2_cv the first regulation port connection；First regulation port connects back to oil-piping, normally opened port and the first brake B3
Connection；The second regulation port of the second solenoid valve B2_cv connects back to oil-piping；Normally opened port and the first brake B2
Connection；The first regulation port of the 4th magnetic valve C1_cv connects with the working connection g, and the second regulation port connects back to oil
Pipeline, normally opened port connect with the second clutch C1.As shown in figure 4, the shift logic of hydraulic system, speed changer is in
During gear, second brake B2 and second clutch C2 actions；During traveling, when speed changer is in a gear, the first brake B1
Acted with second brake B2；When speed changer is in two gears, the first brake B1 and the 3rd brake B3 actions；Speed changer is in
During three gears, the first brake B1 and second clutch device C2 actions；Speed changer be in four gear when, the first brake B1 and first from
Clutch device C1 is acted；When speed changer is in five gears, first clutch C1 and second clutch device C2 actions；Speed changer is in six gears
When, the 3rd brake B3 and first clutch device C1 are acted.
The working connection g is provided with several accumulators 18, and it is used to store unnecessary pressure oil, and is released to when needed
System.When Hydraulic Power Transmission System needs, the pressure fluid stored by accumulator 18 is released under the effect of its loading device
Come, be transported in hydraulic gear-shifting system and go work；And when working solution is excessive in hydraulic gear-shifting system, these unnecessary liquid are again
The active force of loading device can be overcome, stored into accumulator 18.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. the hydraulic gear-shifting system with flow stabilization apparatus, it is characterised in that：Including shift module, the shift module includes
Several brakes and clutch, the brake and the clutch are connected by working connection with pump oil module, in addition to several
The magnetic valve of the brake and clutch is controlled respectively；The working connection is provided with the profit of oil cooler and cooling and lubricating parts
Sliding branch road；Also include oil pressure ratio compared with valve, the oil pressure ratio is provided with valve body and valve element compared with valve, the left and right ends of the valve element respectively with
The oil cooler oil-out is connected with the oil inlet of the lubrication branch road, and drain tap is additionally provided with the valve body and is gone out with oil pump
The oil inlet of hydraulic fluid port connection；The oil pressure of oil pressure and oil pump out of the mouth at the oil pressure in oil cooler exit, lubrication branch road is made jointly
With on the valve element, wherein, the hydraulic oil in oil cooler exit applies thrust to the right, lubrication branch in the left end of the valve element
Hydraulic oil at road applies thrust to the left in the right-hand member of the valve element, and the hydraulic oil that oil inlet enters, which also gives the valve element, to be made
Its thrust being moved to the left, when the force unbalance of valve element left end and right-hand member, the valve element slides the aperture for causing drain tap
Size changes lets out oil return drain pan by the hydraulic oil of oil inlet into valve body.
2. there is the hydraulic gear-shifting system of flow stabilization apparatus as claimed in claim 1, it is characterised in that：A left side for the valve element
Energy-storaging spring is additionally provided between end and the valve body.
3. there is the hydraulic gear-shifting system of flow stabilization apparatus as claimed in claim 1 or 2, it is characterised in that：Also include machine
Tool pump, electric pump and mechanical selector valve, the mechanical selector valve control the mechanical pump connected with working connection and the electric pump and
Lubricant passage way connects；The opening end of the mechanical selector valve connects with the oil-out of mechanical pump.
4. there is the hydraulic gear-shifting system of flow stabilization apparatus as claimed in claim 1, it is characterised in that：The magnetic valve bag
Magnet coil and valve body are included, the valve body is provided with the first regulation port, the second regulation port, normally opened port and overflow port；Institute
State under magnet coil off-position, the second regulation port is in opening, and the first regulation port, which is in, closes shape
State；The magnet coil is powered, and the first regulation port and the second regulation port aperture size are with the magnet coil
Size of current adjustment realize normally opened port it is different oil pressure output.
5. there is the hydraulic gear-shifting system of flow stabilization apparatus as claimed in claim 4, it is characterised in that：The shift module
Including the first brake B1, second brake B2, the 3rd brake B3, first clutch C1 and second clutch C2, the electricity
Magnet valve includes the first magnetic valve B1_cv for controlling the first brake B1；Control the second electromagnetism of the second brake B2
Valve B2_cv；Control the 3rd magnetic valve B3_cv of the 3rd brake B3；Control the 4th electromagnetism of the first clutch C1
Valve C1_cv；Control the 5th magnetic valve C2_cv of the second clutch C2；
Wherein, the second regulation port of the first magnetic valve B1_cv connects with the working connection, and the first regulation port connects back to
Oil-piping, normally opened port connect with the first brake B1；
The first regulation port of the 5th magnetic valve C2_cv connects with the working connection, and the second regulation port connects back to oil pipe
Road, normally opened port connect with the second clutch C2；
The second regulation port of the 3rd magnetic valve B3_cv includes first port and second port, first port and the master
Oil communication, second port connect with second solenoid valve B2_cv the first regulation port；First regulation port connects back to oil pipe
Road, normally opened port connect with the first brake B3；
The second regulation port of the second solenoid valve B2_cv connects back to oil-piping；Normally opened port and the first brake B2
Connection；
The first regulation port of the 4th magnetic valve C1_cv connects with the working connection, and the second regulation port connects back to oil pipe
Road, normally opened port connect with the second clutch C1.
6. there is the hydraulic gear-shifting system of flow stabilization apparatus as claimed in claim 1, it is characterised in that：On the working connection
Provided with several accumulators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274679.3A CN107816541B (en) | 2017-12-06 | 2017-12-06 | Hydraulic shifting system with flow stabilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274679.3A CN107816541B (en) | 2017-12-06 | 2017-12-06 | Hydraulic shifting system with flow stabilizing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107816541A true CN107816541A (en) | 2018-03-20 |
| CN107816541B CN107816541B (en) | 2023-01-13 |
Family
ID=61605184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711274679.3A Active CN107816541B (en) | 2017-12-06 | 2017-12-06 | Hydraulic shifting system with flow stabilizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107816541B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319181A (en) * | 2019-06-20 | 2019-10-11 | 无锡明恒混合动力技术有限公司 | A kind of hydraulic gear-shifting and cooling and lubricating system for hybrid power gearbox |
| CN114893518A (en) * | 2022-05-10 | 2022-08-12 | 南京弹簧有限公司 | Brake actuating device with spring |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1437942A (en) * | 1972-05-25 | 1976-06-03 | Automotive Prod Co Ltd | Liquid pressure control systems for variable speed transmission mechanisms |
| JP2009204067A (en) * | 2008-02-27 | 2009-09-10 | Mazda Motor Corp | Hydraulic control device for automatic transmission |
| CN102230534A (en) * | 2011-04-22 | 2011-11-02 | 安徽江淮汽车股份有限公司 | Hydraulic control system for double-clutch automatic gearbox |
| CN107061723A (en) * | 2017-05-11 | 2017-08-18 | 陕西法士特齿轮有限责任公司 | A kind of hydraulic control system of automatic speed changer |
| CN207598900U (en) * | 2017-12-06 | 2018-07-10 | 盛瑞传动股份有限公司 | Hydraulic gear-shifting system with flow stabilization apparatus |
-
2017
- 2017-12-06 CN CN201711274679.3A patent/CN107816541B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1437942A (en) * | 1972-05-25 | 1976-06-03 | Automotive Prod Co Ltd | Liquid pressure control systems for variable speed transmission mechanisms |
| JP2009204067A (en) * | 2008-02-27 | 2009-09-10 | Mazda Motor Corp | Hydraulic control device for automatic transmission |
| CN102230534A (en) * | 2011-04-22 | 2011-11-02 | 安徽江淮汽车股份有限公司 | Hydraulic control system for double-clutch automatic gearbox |
| CN107061723A (en) * | 2017-05-11 | 2017-08-18 | 陕西法士特齿轮有限责任公司 | A kind of hydraulic control system of automatic speed changer |
| CN207598900U (en) * | 2017-12-06 | 2018-07-10 | 盛瑞传动股份有限公司 | Hydraulic gear-shifting system with flow stabilization apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319181A (en) * | 2019-06-20 | 2019-10-11 | 无锡明恒混合动力技术有限公司 | A kind of hydraulic gear-shifting and cooling and lubricating system for hybrid power gearbox |
| CN110319181B (en) * | 2019-06-20 | 2024-02-09 | 无锡明恒混合动力技术有限公司 | Hydraulic gear shifting and cooling lubrication system for hybrid power gearbox |
| CN114893518A (en) * | 2022-05-10 | 2022-08-12 | 南京弹簧有限公司 | Brake actuating device with spring |
| CN114893518B (en) * | 2022-05-10 | 2023-08-15 | 南京弹簧有限公司 | Brake actuating device with spring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107816541B (en) | 2023-01-13 |
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