CN107131277A - Machine liquid composite transmission based on Stress control - Google Patents
Machine liquid composite transmission based on Stress control Download PDFInfo
- Publication number
- CN107131277A CN107131277A CN201710420108.XA CN201710420108A CN107131277A CN 107131277 A CN107131277 A CN 107131277A CN 201710420108 A CN201710420108 A CN 201710420108A CN 107131277 A CN107131277 A CN 107131277A
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- Prior art keywords
- speed
- pump
- changer
- motor unit
- novel hydraulic
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 43
- 239000007788 liquid Substances 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 25
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 9
- 230000009467 reduction Effects 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000002706 hydrostatic effect Effects 0.000 abstract description 10
- 230000003252 repetitive effect Effects 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009452 underexpressoin Effects 0.000 description 1
Classifications
-
- 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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
-
- 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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
- F16H2047/025—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the fluid gearing comprising a plurality of pumps or motors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Pumps (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a kind of machine liquid composite transmission based on Stress control.Including pump/motor unit, novel hydraulic speed-changer and hydraulic oil container, novel hydraulic speed-changer has two fluid mouths, input shaft and output shaft, and input shaft drives to hydraulic structure transmission is passed through between output shaft；Pump/motor unit is shaft type, the input shaft of pump/motor unit and novel hydraulic speed-changer is coaxially connected, the a fluid mouthful connection of pump/motor unit and novel hydraulic speed-changer is communicated, and another fluid mouthful of pump/motor unit and novel hydraulic speed-changer is all connected to hydraulic oil container.The system can realize raising speed and reduction of speed function, match with rotating speed and moment of torsion needed for load.Compared with conventional hydrostatic is driven, the repetitive component in hydraulic pressure Hydraulic Pump-Motor System and pipeline connection are eliminated, therefore structure is simpler, transmission efficiency is higher.
Description
Technical field
The present invention relates to a kind of hydrostatic transmission, passed more particularly, to a kind of machine liquid based on Stress control is compound
Dynamic system.
Background technology
Traditional hydrostatic transmissions technology is high due to its power-weight ratio, and compact conformation easily realizes that high torque etc. one is
Row advantage is widely used in engineering machinery field.But it is limited by the efficiency of current hydraulic pump motor element, hydrostatic transmissions
The whole efficiency of system is not universal high, and especially under relatively low load behavior, the efficiency of hydraulic variable flow element is with the reduction of discharge capacity
And decline to a great extent.In order to improve the advantage of hydrostatic transmissions technology, in system level, hydraulic pressure is constituted by using hydraulic accumulator
Hybrid power system, realizes Brake energy recovery and starts power-assisted；In element aspect, by changing to element internal structure
Come in improve efficiency of the hydraulic pump motor under relatively low discharge capacity.In addition, hydrostatic transmissions and gear drive are combined, machine liquid is constituted
Transmission, can integrate the function of stepless speed regulation of hydrostatic transmissions with it is gear-driven efficiently, effectively compensate for two kinds of biographies
The respective deficiency of flowing mode.But it is driven using the machine liquid of epicyclic train because its structure is relative complex, therefore cost is higher.
The content of the invention
For the above mentioned problem in technology, the present invention proposes a kind of machine liquid composite transmission based on Stress control,
Raising speed and reduction of speed function can be achieved, realizes and is matched with the required rotating speed of load and moment of torsion.Compared with conventional hydrostatic is driven, save
Repetitive component and pipeline connection in hydraulic pump motor element, therefore structure is simpler, transmission efficiency is higher.
The technical solution adopted by the present invention is：
The present invention includes pump/motor unit, novel hydraulic speed-changer and hydraulic oil container, and novel hydraulic speed-changer has
Two fluid mouthful, input shaft and output shaft, input shaft drive to hydraulic structure transmission is passed through between output shaft；Pump/motor
Unit is shaft type, and pump/motor unit has two fluid mouthful, input shaft and an output shaft, pump/motor unit it is defeated
Enter axle and output shaft and be fixedly and coaxially connected relation for Synchronous Transmission；The input shaft of pump/motor unit is used as the machine liquid
The input shaft of composite transmission, the output shaft of pump/motor unit and the input shaft of novel hydraulic speed-changer pass through shaft coupling
Device is fixedly and coaxially connected, the output shaft of pump/motor unit as the machine liquid composite transmission output shaft；Variable
The a fluid mouthful connection of pump/motor unit and novel hydraulic speed-changer is communicated, pump/motor unit and novel hydraulic speed change
Another fluid mouthful of device is all connected to hydraulic oil container.
Described novel hydraulic speed-changer, which is used, sets up the double acting that an output shaft, stator float and be connected to output shaft
Formula vane pump.
The original stator of double-acting type vane pump and rotor, stator are fixed and are not connected with having axle, and rotor is rotated and connected
There is axle, the present invention is improved to double-acting type vane pump, improve difference and be to set output shaft, its stator is floated and is connected
To output shaft.In addition to stator and input and output shaft improvement, double-acting type vane pump, which also has, adds a fluid mouthful.
Although having made above-mentioned improvement, novel hydraulic speed-changer is actually the conversion between machine driving and oil liquid pressure,
It is substantially a hydraulic transformer rather than hydraulic pump.
Pass through the oil of two fluid mouthful in the different control novel hydraulic speed-changers of the mode of operation of pump/motor unit
The machine liquid composite transmission is realized in the conversion of liquid inflow and outflow, and the change of pump/motor unit swashplate angle
Speed governing between input shaft and output shaft.
When described pump/motor cell operation is under variable pump pattern, the original input torque input of input shaft
To pump/motor unit, the output torque of pump/motor unit output shaft is through shaft coupling mechanical transfer to New buckling
The input shaft of fast device, while pump/motor unit output flow is to novel hydraulic speed-changer, drives novel hydraulic speed-changer production
On the moment of torsion that raw positive-torque and the mechanical transfer that is added to are obtained so that the output speed of novel hydraulic speed-changer turns higher than input
Speed, realizes raising speed.
When described pump/motor cell operation is under variable displacement motor pattern, novel hydraulic speed-changer output flow
To pump/motor unit, driving hydraulic motor produces positive-torque simultaneously and the original input torque of input shaft is together through shaft coupling
Mechanical transfer is on the input shaft of novel hydraulic speed-changer so that the output speed of novel hydraulic speed-changer is less than input speed,
Realize reduction of speed.
The flowing out stream measurer of the speed discrepancy at described novel hydraulic speed-changer two ends and the fluid of output flow mouthful has following
Relation：
Q=D (ωi-ωo)=D △ ω
Wherein Q is the flow at Stress control end, and D is the discharge capacity of novel hydraulic speed-changer, ωiFor input shaft rotating speed, ωoFor
The rotating speed of output shaft, △ ω are transmission slip.
The pressure of the output torque of described novel hydraulic speed-changer and the fluid of output flow mouthful has following relation：
T=Dp
Wherein T is the moment of torsion of output shaft, and D is the discharge capacity of novel hydraulic speed-changer, and p is Stress control end pressure.
The beneficial effects of the invention are as follows：
Realize that speed governing is different by changing variable element discharge capacity from conventional hydrostatic speed changer, novel hydraulic speed-changer passes through
The pressure of control pressure control end realizes different output shaft torque,s, so as to realize speed-regulating function.
Pump/motor unit is coupled on the input shaft of the hydraulic transformer and just constitutes a Novel machine liquid power train
System.The function of the hydraulic transformer liquid collecting press pump and hydraulic motor compared with conventional hydrostatic speed changer, eliminates liquid in one
Repetitive component and pipeline connection in press pump motor component, therefore structure is simpler, transmission efficiency is higher.Pass through variable pump/horse
Up to the regulation of element variable mechanism, it is possible to achieve the switching of pump/motor function and different control pressures, so as to realize machine liquid
The speed governing of transmission system.Compared with using planetary machine liquid transmission system, the machine liquid transmission system simplifies transmission system
Structure, provide a kind of brand-new machine liquid kind of drive for engineering machinery.
Brief description of the drawings
Fig. 1 is present system schematic diagram.
Fig. 2 is the principle of equal effects structure chart of novel hydraulic speed-changer.
Fig. 3 is a kind of Application Example of the present invention.
Fig. 4 is another Application Example of the present invention.
In figure：1st, input shaft, 2, pump/motor unit, 3, novel hydraulic speed-changer, 4, output shaft, 5, hydraulic oil container,
6th, diesel engine, 7, main reducing gear, 8, cooling fan, 9, constant displacement pump, 10, fixed displacement motor.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the present invention.
As shown in figure 1, the present invention includes pump/motor unit 2, novel hydraulic speed-changer 3 and hydraulic oil container 5, it is new
Hydraulic transformer 3 has two fluid mouthful, input shaft and an output shaft, and input shaft is to passing through hydraulic structure transmission belt between output shaft
It is dynamic；Pump/motor unit 2 is shaft type, and pump/motor unit 2 has two fluid mouthful, input shaft and output shaft, becomes
The input shaft and output shaft for measuring pump/motor unit 2 are fixedly and coaxially connected relation for Synchronous Transmission；Pump/motor unit 2
Input shaft is used as the input shaft 1 of the machine liquid composite transmission, output shaft and the New buckling of pump/motor unit 2
The input shaft of fast device 3 is fixedly and coaxially connected by shaft coupling, and the output shaft of pump/motor unit 2 is compound as the machine liquid
The output shaft 4 of transmission system；The a fluid mouthful connection of pump/motor unit 2 and novel hydraulic speed-changer 3 is communicated, variable
Another fluid mouthful of pump/motor unit 2 and novel hydraulic speed-changer 3 is all connected to hydraulic oil container 5.
Pass through two fluid mouthful in the different control novel hydraulic speed-changers 3 of the mode of operation of pump/motor unit 2
The conversion of fluid inflow and outflow, realizes the speed governing between the input shaft 1 and output shaft 4 of the machine liquid composite transmission.Specifically
For：
When pump/motor unit 2 is operated under variable pump pattern, the original input torque of input shaft 1 is input to change
Pump/motor unit 2 is measured, the output torque of the output shaft of pump/motor unit 2 is through shaft coupling mechanical transfer to novel hydraulic speed change
The input shaft of device 3, while the output flow of pump/motor unit 2 is to novel hydraulic speed-changer 3, drives novel hydraulic speed-changer 3
Produce on the moment of torsion that positive-torque and the mechanical transfer that is added to are obtained so that the output speed of novel hydraulic speed-changer 3 is higher than input
Rotating speed, realizes raising speed.
When pump/motor unit 2 is operated under variable displacement motor pattern, the output flow of novel hydraulic speed-changer 3 to change
Pump/motor unit 2 is measured, driving hydraulic motor 2 produces positive-torque simultaneously and the original input torque of input shaft 1 is together through shaft coupling machine
Tool is delivered on the input shaft of novel hydraulic speed-changer 3 so that the output speed of novel hydraulic speed-changer 3 is less than input speed,
Realize reduction of speed.
The present invention, in the regulation of zero-bit both sides, can make element manipulation in pump pattern by pump/motor stroking mechanism
Or motoring mode.Whole system can realize two kinds of functions of raising speed and reduction of speed simultaneously.If each element is regarded in Fig. 1 shown devices
Make ideal element, then the input speed ω of whole deviceiWith output speed ωo, input torque TiWith output torque ToIn the presence of as follows
Relation：
Wherein DcFor the delivery of pump/motor, ToFor output shaft output torque, TiFor input shaft input torque, x is
Swashplate angle coefficient, x ∈ (- 1,1).Work as x<When 0, pump/motor is operated under hydraulic motor pattern, and output speed is less than defeated
Enter rotating speed, output torque is more than input torque；Work as x>When 0, pump/motor is operated under hydraulic pump pattern, and output speed is big
In input speed, output torque is less than input torque.
The novel hydraulic speed-changer 2 of specific implementation uses and sets up one on double-acting type vane pump, double-acting type vane pump
Fluid mouthful and output shaft, and stator is set to revocable floating, it is then attached to output shaft 5.Double acting after improvement
Formula vane pump is equivalent to the constant displacement pump 9 of same displacement and the cascaded structure of fixed displacement motor 10, as shown in Fig. 2 constant displacement pump 9 when slowing down
Output flow largely flows out, and fraction is flowed into fixed displacement motor 10；The output flow of constant displacement pump 9 is largely flowed into fixed during raising speed
Measure motor 10, fraction outflow.
Embodiments of the invention and its implementation process are as follows：
Embodiment 1
Fig. 3 is a kind of application example of the present invention, and the present invention is applied in the transmission system of engineering machinery.Wherein input
Axle is connected to diesel engine 6, and output shaft is connected to engineering machinery main reducing gear 7.When engineering machinery starts, it is necessary to export big torsion
Square, the slow-speed of revolution.Pump/motor cell operation now can be made in a motoring mode., can with the increase of engineering machinery speed
In real time according to required moment of torsion adjustment swashplate angle, to change output torque.When engineering machinery in the case of inoperative on road surface
During traveling, car speed is higher.Pump/motor cell operation now can be made in a pumping mode.
Embodiment 2
Fig. 4 is another application example of the present invention, and the present invention is applied in the fan cooling system of engineering machinery.Its
Middle input shaft is connected to diesel engine 6, and output shaft is connected on engineering machinery cooling fan 8.When engineering machinery works, according to work
The different of condition need the rotating speed of adjustment cooling fan in real time.When operating mode is lighter, pump/motor cell operation can be made in horse
Under expression patterns.When operating mode is violent, pump/motor cell operation can be made in a pumping mode, in real time according to required adjustment of rotational speed
Fan actual speed, to realize fan blade raising speed.
Claims (7)
1. a kind of machine liquid composite transmission based on Stress control, it is characterised in that：Including pump/motor unit (2), newly
Type hydraulic transformer (3) and hydraulic oil container (5), novel hydraulic speed-changer (3) have two fluid mouthful, input shaft and output shaft,
Input shaft between output shaft pass through hydraulic structure transmission drive；Pump/motor unit (2) is shaft type, pump/motor
The input shaft of unit (2) is used as the input shaft (1) of the machine liquid composite transmission, the output shaft of pump/motor unit (2)
It is fixedly and coaxially connected with the input shaft of novel hydraulic speed-changer (3) by shaft coupling, the output shaft of pump/motor unit (2)
It is used as the output shaft (4) of the machine liquid composite transmission；The one of pump/motor unit (2) and novel hydraulic speed-changer (3)
Individual fluid mouthful connection is communicated, and another fluid mouthful of pump/motor unit (2) and novel hydraulic speed-changer (3) is all connected to
Hydraulic oil container (5).
2. a kind of machine liquid composite transmission based on Stress control according to claim 1, it is characterised in that：Described
Novel hydraulic speed-changer (3), which is used, sets up the double-acting type vane pump that output shaft, stator float and be connected to output shaft (5).
3. a kind of machine liquid composite transmission based on Stress control according to claim 1, it is characterised in that：By becoming
The fluid of two fluid mouthful flows into stream in the different control novel hydraulic speed-changers (3) for the mode of operation for measuring pump/motor unit (2)
The speed governing between the input shaft (1) of the machine liquid composite transmission and output shaft (4) is realized in the conversion gone out.
4. a kind of machine liquid composite transmission based on Stress control according to claim 3, it is characterised in that：When described
Pump/motor unit (2) when being operated under variable pump pattern, input shaft (1) original input torque be input to variable pump/
Motor unit (2), the output torque of pump/motor unit (2) output shaft is through shaft coupling mechanical transfer to novel hydraulic speed change
The input shaft of device (3), while pump/motor unit (2) output flow is to novel hydraulic speed-changer (3), drives novel hydraulic
Speed changer (3) is produced on the moment of torsion that positive-torque and the mechanical transfer that is added to are obtained so that the output of novel hydraulic speed-changer (3) turns
Speed is higher than input speed, realizes raising speed.
5. a kind of machine liquid composite transmission based on Stress control according to claim 3, it is characterised in that：When described
Pump/motor unit (2) when being operated under variable displacement motor pattern, novel hydraulic speed-changer (3) output flow to variable pump/
Motor unit (2), driving hydraulic motor (2) produces positive-torque simultaneously and input shaft (1) original input torque is together through shaft coupling
Mechanical transfer is on the input shaft of novel hydraulic speed-changer (3) so that the output speed of novel hydraulic speed-changer (3) is less than input
Rotating speed, realizes reduction of speed.
6. a kind of machine liquid composite transmission based on Stress control according to claim 1, it is characterised in that：Described
The flowing out stream measurer of the speed discrepancy at novel hydraulic speed-changer (3) two ends and the fluid of output flow mouthful has following relation：
Q=D (ωi-ωo)=D △ ω
Wherein Q is the flow at Stress control end, and D is the discharge capacity of novel hydraulic speed-changer (3), ωiFor input shaft (1) rotating speed, ωo
For the rotating speed of output shaft (4), △ ω are transmission slip.
7. a kind of machine liquid composite transmission based on Stress control according to claim 1, it is characterised in that：Described
The pressure of the output torque of novel hydraulic speed-changer (3) and the fluid of output flow mouthful has following relation：
T=Dp
Wherein T is the moment of torsion of output shaft (4), and D is the discharge capacity of novel hydraulic speed-changer (3), and p is Stress control end pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710420108.XA CN107131277B (en) | 2017-06-06 | 2017-06-06 | Machine-liquid compound transmission system based on pressure control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710420108.XA CN107131277B (en) | 2017-06-06 | 2017-06-06 | Machine-liquid compound transmission system based on pressure control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107131277A true CN107131277A (en) | 2017-09-05 |
| CN107131277B CN107131277B (en) | 2023-12-26 |
Family
ID=59735228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710420108.XA Active CN107131277B (en) | 2017-06-06 | 2017-06-06 | Machine-liquid compound transmission system based on pressure control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107131277B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879097A (en) * | 2021-09-15 | 2022-01-04 | 浙江大学 | Multi-mode electro-hydraulic hybrid power system |
| CN114001139A (en) * | 2021-10-27 | 2022-02-01 | 江苏大学 | Mechanical-hydraulic compound transmission device comprising single-pump multi-motor system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5887674A (en) * | 1995-10-11 | 1999-03-30 | The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency | Continuously smooth transmission |
| US20110056195A1 (en) * | 2009-09-04 | 2011-03-10 | Robert Hugh Francis Lloyd | Infinitely-variable, hydro-mechanical transmission using fixed displacement pumps and motors |
| CN202115325U (en) * | 2011-06-29 | 2012-01-18 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Driving device of power dividing hydraulic hybrid power vehicle |
| CN102785570A (en) * | 2012-08-10 | 2012-11-21 | 同济大学 | Walking-machine-oriented multi-gear or numerous-gear hydraulic-mechanical composite variable-speed transmission system |
| US20130067899A1 (en) * | 2009-11-20 | 2013-03-21 | Norm Mathers | Hydrostatic torque converter and torque amplifier |
| CN207018464U (en) * | 2017-06-06 | 2018-02-16 | 浙江大学 | A kind of machine liquid composite transmission based on Stress control |
-
2017
- 2017-06-06 CN CN201710420108.XA patent/CN107131277B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5887674A (en) * | 1995-10-11 | 1999-03-30 | The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency | Continuously smooth transmission |
| US20110056195A1 (en) * | 2009-09-04 | 2011-03-10 | Robert Hugh Francis Lloyd | Infinitely-variable, hydro-mechanical transmission using fixed displacement pumps and motors |
| US20130067899A1 (en) * | 2009-11-20 | 2013-03-21 | Norm Mathers | Hydrostatic torque converter and torque amplifier |
| CN202115325U (en) * | 2011-06-29 | 2012-01-18 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Driving device of power dividing hydraulic hybrid power vehicle |
| CN102785570A (en) * | 2012-08-10 | 2012-11-21 | 同济大学 | Walking-machine-oriented multi-gear or numerous-gear hydraulic-mechanical composite variable-speed transmission system |
| CN207018464U (en) * | 2017-06-06 | 2018-02-16 | 浙江大学 | A kind of machine liquid composite transmission based on Stress control |
Non-Patent Citations (2)
| Title |
|---|
| FENG WANG: "An Efficient Fan Drive System Based on a Novel Hydraulic Transmission", IEEE/ASME TRANSACTIONS ON MECHATRONICS, vol. 20, no. 5, pages 2234 - 2242 * |
| FENG WANG等: "A NOVEL PRESSURE-CONTROLLED HYDRO-MECHANICAL TRANSMISSION", pages 1 - 7 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879097A (en) * | 2021-09-15 | 2022-01-04 | 浙江大学 | Multi-mode electro-hydraulic hybrid power system |
| CN113879097B (en) * | 2021-09-15 | 2023-04-18 | 浙江大学 | Multi-mode electro-hydraulic hybrid power system |
| CN114001139A (en) * | 2021-10-27 | 2022-02-01 | 江苏大学 | Mechanical-hydraulic compound transmission device comprising single-pump multi-motor system |
| CN114001139B (en) * | 2021-10-27 | 2024-04-09 | 江苏大学 | Machine-liquid compound transmission device comprising single-pump multi-motor system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107131277B (en) | 2023-12-26 |
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