CN104930022B - A kind of hydraulic transmission with flushing valve - Google Patents
A kind of hydraulic transmission with flushing valve Download PDFInfo
- Publication number
- CN104930022B CN104930022B CN201510362597.9A CN201510362597A CN104930022B CN 104930022 B CN104930022 B CN 104930022B CN 201510362597 A CN201510362597 A CN 201510362597A CN 104930022 B CN104930022 B CN 104930022B
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- valve
- oil
- valve element
- oil duct
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
- F16H39/00—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
- F16H39/02—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motors at a distance from liquid pumps
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details Of Valves (AREA)
Abstract
The present invention relates to a kind of hydraulic transmission with flushing valve, include shell, shell is provided with oil pump, motor, first oil duct, second oil duct, first oil duct, an at least oil duct in second oil duct is provided with flushing valve, flushing valve includes valve body, valve element, valve pocket is provided with described valve body, valve element coordinates with valve body lifting, the return unit for being used for resetting valve element is provided with valve pocket, described valve element is provided with oil inlet, oil inlet turns on valve pocket, valve body is provided with the oil-out turned on valve pocket, shell is provided with drain tap, oil-out turns on drain tap, be provided with the sealing structure for being used for oil inlet or oil-out being closed when valve element declines between valve body and valve element.Using above-mentioned technical proposal, the invention provides a kind of hydraulic transmission with flushing valve, and it can be rinsed to the impurity in oil duct, and so that hydraulic transmission good heat dissipation effect, motor starting, braking are more steady.
Description
Technical field
The present invention relates to a kind of hydraulic transmission, more particularly to a kind of hydraulic transmission with flushing valve.
Background technology
A kind of existing hydraulic transmission, includes shell, and shell is provided with oil pump, motor, the first oil duct, the second oil
Road, the first oil duct, the second oil duct both ends are connected with oil pump, motor respectively, and oil pump, the first oil duct, motor, the second oil duct form liquid
Road is pushed back, when fluid flows into motor from the first oil duct in oil pump, the rotating forward that oil pump realizes motor is flowed back to through the second oil duct；Work as oil pump
Middle fluid flows into motor from the second oil duct, and the reversion that oil pump realizes motor is flowed back to through the first oil duct.But this transmission device exists
In use, the impurity in the first oil duct, the second oil duct can not rinse, moreover, the transmission device radiating effect is poor so that motor opens
Move, brake it is unstable.
The content of the invention
The purpose of the present invention：The defects of in order to overcome prior art, the invention provides a kind of hydraulic pressure biography with flushing valve
Dynamic device, it can be rinsed to the impurity in oil duct, and so that hydraulic transmission good heat dissipation effect, motor starting, system
It is dynamic more steady.
Technical scheme：A kind of hydraulic transmission with flushing valve, includes shell, and shell is provided with oil
Pump, motor, the first oil duct, the second oil duct, the first oil duct, the second oil duct both ends are connected with oil pump, motor respectively, oil pump, first
Oil duct, motor, the second oil duct form hydraulic circuit, it is characterised in that：At least one oil in described the first oil duct, the second oil duct
Road is provided with flushing valve, and flushing valve includes valve body, valve element, and valve pocket is provided with described valve body, and valve body is provided with and inserted for valve element
The spool bore entered, valve element one end are extended in valve pocket through spool bore, and the other end is extended to outside valve body, and valve element is matched somebody with somebody with valve body lifting
Close, the return unit for being used for resetting valve element is provided with valve pocket, the valve element in valve pocket, which is provided with, to be used to prevent valve element from departing from valve pocket
Limiting plate, described valve element is provided with oil inlet, and oil inlet turns on valve pocket, valve body be provided with turned on valve pocket it is fuel-displaced
Mouthful, shell is provided with drain tap, and oil-out turns on drain tap, is provided with and is used in the case where valve element is into valve pocket between valve body and valve element
The sealing structure for closing oil inlet or oil-out during drop.
Using above-mentioned technical proposal, during normal work, part fluid enters valve pocket from the oil inlet on flush valve core, then
Fuel tank is flowed back to through drain tap by oil-out, the impurity in oil duct can be so rinsed, moreover, oil duct inner fluid during work
Temperature is higher, by the way that part fluid is flowed back into fuel tank, can improve the radiating effect of hydraulic transmission so that motor starting, system
It is dynamic more steady；When pressure is high in oil duct, promote valve element to decline, closed oil inlet or oil-out by sealing structure, so
It can prevent excessive fluid from flowing to fuel tank, influence the service behaviour of motor.
The further setting of the present invention：Described valve element lower end is provided with to be used for and oil-out inner wall sealing when valve element declines
Conical seal (contact) face or cylindrical sealing surface.
Further set using above-mentioned, when valve element declines, pass through the conical seal (contact) face or cylindrical sealing surface of valve element lower end
Oil-out is closed, simple in construction, sealed reliable.
The further setting of the present invention：Described oil inlet is arranged on the outside of valve element and spool bore inwall opposite side
On wall, it is provided with described valve element positioned at oil inlet upper end when valve element declines for the cylindrical seal with spool bore inner wall sealing
Face.
Further set using above-mentioned, when valve element declines, by the cylindrical seal for being located at oil inlet upper end on valve element
Oil inlet is closed in face, simple in construction, sealed reliable.
The further setting of the present invention：Described valve body includes valve body body, the gland of split settings, and gland is set
On valve body body, valve pocket is arranged on valve body body, and valve pocket upper end open is set, and gland is located at aperture position, described valve
Core bore is arranged on gland.
Further set using above-mentioned, can so facilitate to valve pocket inner spool, the installation of return unit, dismounting, use
It is more convenient.
The present invention's is further set again：Described oil inlet is arranged on the outer of valve element and spool bore inwall opposite side
In side wall, positioned at oil inlet upper end provided with close for the taper with spool bore inner wall sealing when valve element declines on described valve element
Front cover.
It is close by the taper for being located at oil inlet upper end on valve element when valve element declines using above-mentioned setting further again
Front cover closes oil inlet, simple in construction, sealed reliable.
The present invention's is further set again：Described valve pocket bottom opening is set, and corresponding opening position is provided with valve body
Positioning seat, positioning seat lower end are provided with back-up ring, and back-up ring is circumferentially embedded in valve body, and shown oil-out is arranged on positioning seat.
Using above-mentioned setting further again, it can so facilitate and load valve element in valve pocket from valve pocket bottom, installation is more
Add conveniently.
The present invention's is further set again：Described return unit is back-moving spring, and described back-moving spring is set in
On valve element, back-moving spring both ends contradict with limiting plate, valve pocket bottom respectively.
Using above-mentioned setting further again, return unit uses spring, and reseting performance is good, this spring mounting means, peace
Dress is convenient, and positioning is firm, will not produce position skew.
The present invention's is further set again：The first overflow valve, the second overflow are respectively equipped with first oil duct, the second oil duct
Valve, slippage pump is also associated with described oil pump, be additionally provided with the 3rd overflow valve between slippage pump and drain tap, the first overflow valve,
Second overflow valve is connected with the entrance point of the 3rd overflow valve.
Using above-mentioned setting further again, the slippage pump of setting can the timely repairing when hydraulic circuit pressure is too low,
Fluid can be flowed back to fuel tank by the first overflow valve, the second overflow valve set when hydraulic circuit pressure is too high from drain tap.
Brief description of the drawings
Fig. 1 is the structural representation of transmission device；
Fig. 2 is A-A structure sectional views in Fig. 1；
Fig. 3 is B-B structure sectional views in Fig. 1；
Fig. 4 is Fig. 3 left view；
Fig. 5 is D-D structure sectional views in Fig. 4；
Fig. 6 is C-C structure sectional views in Fig. 3；
Fig. 7 is the theory diagram of hydraulic transmission；
Fig. 8 is flushing valve structure schematic diagram in embodiment 1；
Fig. 9 is flushing valve structure schematic diagram in embodiment 2；
Figure 10 is flushing valve structure schematic diagram in embodiment 3.
Embodiment
Embodiment 1：
As shown in figures 1-8, a kind of hydraulic transmission with flushing valve, includes shell 1, shell 1 be provided with oil pump 2,
Motor 3, the first oil duct 4, the second oil duct 5, the first oil duct 4, the both ends of the second oil duct 5 are connected with oil pump 2, motor 3 respectively, oil pump 2,
First oil duct 4, motor 3, the second oil duct 5 form hydraulic circuit, and shell 1 is provided with drain tap 9, the first oil duct 4, the second oil duct 5
On be respectively equipped with the first overflow valve 6, the second overflow valve 7, be also associated with slippage pump 8, slippage pump 8 and draining on described oil pump 2
The 3rd overflow valve 10 is additionally provided between mouth 9, the first overflow valve 6, the second overflow valve 7 are connected with the entrance point of the 3rd overflow valve 10,
The first described oil duct 4 is provided with flushing valve 11, and flushing valve 11 includes valve body 111, valve element 112, set in described valve body 111
There is valve pocket 113, valve body 111 is provided with the spool bore 1111 inserted for valve element 112, and the one end of valve element 112 is prolonged through spool bore 1111
Extend in valve pocket 113, the other end is extended to outside valve body 111, and valve element 112 coordinates with the lifting of valve body 111, is provided with and is used in valve pocket 113
In the back-moving spring 114 for resetting valve element 112, the valve element 112 in valve pocket 113, which is provided with, to be used to prevent valve element 112 from departing from valve
The limiting plate 115 of chamber 113, described back-moving spring 114 are set on valve element, the both ends of back-moving spring 114 respectively with limiting plate
115th, the bottom of valve pocket 113 contradict, described valve element 112 be provided with the first oil duct 4 conducting oil inlet 116, oil inlet 116 with
Valve pocket 113 turns on, and valve body 111 is provided with the oil-out 117 turned on valve pocket 113, and oil-out 117 turns on drain tap 9, described
The lower end of valve element 112 be provided with when valve element 112 declines into valve pocket 113 for the cone seal with the inner wall sealing of oil-out 117
Face 1121, naturally it is also possible to using cylindrical sealing surface.Wherein, described valve body 111 includes the valve body body of split settings
1112nd, gland 1113, gland 1113 are arranged on valve body body, and valve pocket is arranged on valve body body 1112, and the upper end of valve pocket 113 is opened
Mouth is set, and gland 1113 is located at aperture position, and described spool bore 1111 is arranged on gland 1113.
During normal work, part fluid enters valve pocket 113 from the oil inlet 116 on flush valve core 112, then by oil-out
117 flow back to fuel tank through drain tap 9, and so the impurity in oil duct can be rinsed, moreover, oil duct inner fluid temperature during work
It is higher, by the way that part fluid is flowed back into fuel tank, the radiating effect of hydraulic transmission can be improved so that motor starting, braking are more
Add steady；When pressure is high in oil duct, promotes valve element to decline, closed oil-out 117 by conical seal (contact) face 1121, so can be with
Prevent excessive fluid from flowing to fuel tank, influence the service behaviour of motor.
Embodiment 2：
As shown in Fig. 1-7,9, a kind of hydraulic transmission with flushing valve includes shell 1, and shell 1 is provided with oil pump
2nd, motor 3, the first oil duct 4, the second oil duct 5, the first oil duct 4, the both ends of the second oil duct 5 are connected with oil pump 2, motor 3 respectively, oil pump
2nd, the first oil duct 4, motor 3, the second oil duct 5 form hydraulic circuit, and shell 1 is provided with drain tap 9, the first oil duct 4, the second oil duct
The first overflow valve 6, the second overflow valve 7 are respectively equipped with 5, slippage pump 8, slippage pump 8 and draining are also associated with described oil pump 2
The 3rd overflow valve 10 is additionally provided between mouth 9, the first overflow valve 6, the second overflow valve 7 are connected with the entrance point of the 3rd overflow valve 10,
The first described oil duct 4 is provided with flushing valve 11 ', and flushing valve 11 ' includes valve body 111 ', valve element 112 ', described valve body
Valve pocket 113 ' is provided with 111 ', valve body 111 ' is provided with the spool bore 1111 ' inserted for valve element 112 ', and the one end of valve element 112 ' passes through
Spool bore 1111 ' is extended in valve pocket 113 ', and the other end extends to valve body 111 ' outside, and valve element 112 ' is matched somebody with somebody with the lifting of valve body 111 '
Close, the back-moving spring 114 ' for being used for resetting valve element is provided with valve pocket 113 ', the valve element 112 ' in valve pocket 113 ', which is provided with, to be used
In preventing valve element from departing from the limiting plate 115 ' of valve pocket, described back-moving spring 114 ' is set on valve element 112 ', back-moving spring
114 ' both ends contradict with limiting plate 115 ', the bottom of valve pocket 113 ' respectively, and described valve element 112 ' is provided with and turned on the first oil duct 4
Oil inlet 116 ', oil inlet 116 ' and valve pocket 113 ' turn on, and valve body 111 ' is provided with the oil-out turned on valve pocket 113 '
117 ', oil-out 117 ' turns on drain tap 9, is provided with described valve element 112 ' positioned at the upper end of oil inlet 116 ' in valve element 112 '
It is used for the cylindrical sealing surface 1121 ' with the inner wall sealing of spool bore 1111 ' when declining in valve pocket 113 '.Wherein, described valve body
111 ' include valve body body 1112 ', the gland 1113 ' of split settings, and gland 1113 ' is arranged on valve body body, valve pocket
113 ' are arranged on valve body body 1112 ', and the upper end open of valve pocket 113 ' is set, and gland 1113 ' is located at aperture position, described valve
Core bore 1111 ' is arranged on gland 1113 '.
During normal work, part fluid enters valve pocket 113 ' from the oil inlet 116 ' on flush valve core 112 ', then by going out
Hydraulic fluid port 117 ' flows back to fuel tank through drain tap 9, and so the impurity in oil duct can be rinsed, moreover, oily in oil duct during work
Liquid temperature degree is higher, by the way that part fluid is flowed back into fuel tank, can improve the radiating effect of hydraulic transmission so that motor starting,
Braking is more steady；When pressure is high in oil duct, promote valve element to decline, closed oil inlet 116 ' by cylindrical sealing surface 1121 ',
It so can prevent excessive fluid from flowing to fuel tank, influence the service behaviour of motor.
Embodiment 3：
As shown in Fig. 1-7,10, a kind of hydraulic transmission with flushing valve includes shell 1, and shell 1 is provided with oil pump
2nd, motor 3, the first oil duct 4, the second oil duct 5, the first oil duct 4, the both ends of the second oil duct 5 are connected with oil pump 2, motor 3 respectively, oil pump
2nd, the first oil duct 4, motor 3, the second oil duct 5 form hydraulic circuit, and shell 1 is provided with drain tap 9, the first oil duct 4, the second oil duct
The first overflow valve 6, the second overflow valve 7 are respectively equipped with 5, slippage pump 8, slippage pump 8 and draining are also associated with described oil pump 2
The 3rd overflow valve 10 is additionally provided between mouth 9, the first overflow valve 6, the second overflow valve 7 are connected with the entrance point of the 3rd overflow valve 10,
The first described oil duct 4, which is provided with flushing valve 11 ', ', flushing valve 11 ' ' includes valve body 111 ' ', valve element 112 ' ', described valve
The spool bore 1111 ' that body 111 ' ' in be provided with valve pocket 113 ' ', valve body 111 ' ' be provided with supply valve element 112 ' ' insert ', valve element 112 ' '
One end passes through spool bore 1111 ' ' extend to valve pocket 113 ' ' in, the other end extends to valve body 111 ' ' outside, valve element 112 ' ' and valve body
111 ' ' lifting coordinates, valve pocket 113 ' ' it is provided with the back-moving spring 114 ' for being used for resetting valve element ', the valve element 112 ' in valve pocket '
It is provided with the limiting plate 115 ' ', described valve element 112 ' ' for being used for preventing valve element from departing from valve pocket and is provided with and is connected with the first oil duct 4
Oil inlet 116 ' ', oil inlet 116 ' ' and valve pocket 113 ' ' conducting, valve body 111 ' ' be provided with and valve pocket 113 ' ' conducting it is fuel-displaced
It is located at oil inlet 116 ' on mouthfuls 117 ' ', oil-out 117 ' ' turned on drain tap 9, described valve element 112 ' ' ' upper end is provided with valve
It is used for when declining in core 112 ' ' to valve pocket 113 ' ' and the spool bore 1111 ' conical seal (contact) face 1121 ' of inner wall sealing ' ', it is described
Corresponding opening position is provided with positioning seat 118 ' on valve pocket 113 ' ' bottom opening set, valve body 111 ' ' ', positioning seat 118 ' ' lower end
Provided with back-up ring 119 ' ', back-up ring 119 ' ' be circumferentially embedded in valve body 111 ' ' in, shown oil-out 117 ' ' it is arranged on positioning seat 118
On, on described back-moving spring 114 ' ' be set in valve element 112 ' ', back-moving spring 114 ' ' both ends respectively with limiting plate 115 ' ',
Positioning seat 118 ' ' contradict.
During normal work, part fluid is from flush valve core 112 ' ' on oil inlet 116 ' ' enters valve pocket 113 ' ', then by
Oil-out 117 ' ' through drain tap 9 fuel tank is flowed back to, the impurity in oil duct can be so rinsed, moreover, during work in oil duct
Oil liquid temperature is higher, by the way that part fluid is flowed back into fuel tank, can improve the radiating effect of hydraulic transmission so that motor opens
It is dynamic, braking is more steady；When pressure is high in oil duct, valve element is promoted to decline, by conical seal (contact) face 1121 ' ' by oil inlet 116 ' '
Closing, so can prevent excessive fluid from flowing to fuel tank, influence the service behaviour of motor.
Claims (8)
1. a kind of hydraulic transmission with flushing valve, includes shell, shell is provided with oil pump, motor, the first oil duct, second
Oil duct, the first oil duct, the second oil duct both ends are connected with oil pump, motor respectively, and oil pump, the first oil duct, motor, the second oil duct are formed
Hydraulic circuit, it is characterised in that：An at least oil duct in described the first oil duct, the second oil duct is provided with flushing valve, flushing valve
Include valve body, valve element, valve pocket is provided with described valve body, valve body is provided with the spool bore for valve element insertion, and valve element one end is worn
Cross spool bore to extend in valve pocket, the other end is extended to outside valve body, and valve element coordinates with valve body lifting, is provided with valve pocket and is used to reset
The return unit of valve element, valve element in valve pocket are provided with the limiting plate for being used to prevent valve element from departing from valve pocket, on described valve element
Provided with oil inlet, oil inlet turns on valve pocket, and valve body is provided with the oil-out turned on valve pocket, and shell is provided with drain tap, gone out
Hydraulic fluid port turns on drain tap, is provided between valve body and valve element and is used to seal oil inlet or oil-out when valve element declines into valve pocket
The sealing structure closed.
2. the hydraulic transmission according to claim 1 with flushing valve, it is characterised in that：Described valve element lower end is provided with
When valve element declines for the conical seal (contact) face or cylindrical sealing surface with oil-out inner wall sealing.
3. the hydraulic transmission according to claim 1 with flushing valve, it is characterised in that：Described oil inlet is arranged on
Valve element on described valve element positioned at oil inlet upper end with the lateral wall of spool bore inwall opposite side, being provided with when valve element declines
For the cylindrical sealing surface with spool bore inner wall sealing.
4. the hydraulic transmission with flushing valve according to Claims 2 or 3, it is characterised in that：Described valve body includes
There are valve body body, the gland of split settings, gland is arranged on valve body body, and valve pocket is arranged on valve body body, valve pocket upper end
Opening is set, and gland is located at aperture position, and described spool bore is arranged on gland.
5. the hydraulic transmission according to claim 1 with flushing valve, it is characterised in that：Described oil inlet is arranged on
Valve element on described valve element positioned at oil inlet upper end with the lateral wall of spool bore inwall opposite side, being provided with when valve element declines
For the conical seal (contact) face with spool bore inner wall sealing.
6. the hydraulic transmission according to claim 5 with flushing valve, it is characterised in that：Described valve pocket bottom opening
Set, corresponding opening position is provided with positioning seat on valve body, and positioning seat lower end is provided with back-up ring, and back-up ring is circumferentially embedded in valve body, institute
The oil-out stated is arranged on positioning seat.
7. according to the hydraulic transmission with flushing valve described in claim 1 or 2 or 3 or 5, it is characterised in that：Described answers
Position part is back-moving spring, and described back-moving spring is set on valve element, and back-moving spring both ends are supported with limiting plate, valve pocket bottom respectively
Touch.
8. according to the hydraulic transmission with flushing valve described in claim 1 or 2 or 3 or 5, it is characterised in that：First oil duct,
The first overflow valve, the second overflow valve are respectively equipped with second oil duct, is also associated with slippage pump on described oil pump, slippage pump is with letting out
The 3rd overflow valve is additionally provided between hydraulic fluid port, the first overflow valve, the second overflow valve are connected with the entrance point of the 3rd overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362597.9A CN104930022B (en) | 2015-06-24 | 2015-06-24 | A kind of hydraulic transmission with flushing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362597.9A CN104930022B (en) | 2015-06-24 | 2015-06-24 | A kind of hydraulic transmission with flushing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104930022A CN104930022A (en) | 2015-09-23 |
| CN104930022B true CN104930022B (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510362597.9A Active CN104930022B (en) | 2015-06-24 | 2015-06-24 | A kind of hydraulic transmission with flushing valve |
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| CN (1) | CN104930022B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081955B (en) * | 2019-04-29 | 2020-09-25 | 新乡航空工业(集团)有限公司 | Method for detecting variable viscosity lubricating oil micro-flowmeter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202768975U (en) * | 2011-11-26 | 2013-03-06 | 邓鸣镛 | Blocking-resisting water economizer |
| CN203500155U (en) * | 2013-08-31 | 2014-03-26 | 西安志越机电科技有限公司 | Closed type hydraulic system of engineering vehicle travelling mechanism |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2218472A1 (en) * | 1972-04-17 | 1973-10-31 | Bosch Gmbh Robert | HYDROSTATIC TRANSMISSION |
| CN101545554B (en) * | 2008-03-24 | 2011-04-13 | 浙江三花汽车控制系统有限公司 | Pressure control valve |
| CN101968119B (en) * | 2010-10-18 | 2012-08-29 | 凯迈（洛阳）气源有限公司 | Gas electromagnetic valve |
| CN202370918U (en) * | 2011-12-24 | 2012-08-08 | 淮北市中芬矿山机器有限责任公司 | Hydraulic drive device of thickener |
| CN203049648U (en) * | 2012-11-19 | 2013-07-10 | 西安志越机电科技有限公司 | Single-pump and double-motor close-type hydraulic system for land leveler travelling mechanism |
| CN203176070U (en) * | 2013-04-01 | 2013-09-04 | 宁波斯达弗液压传动有限公司 | Rinsing valve |
| CN203348230U (en) * | 2013-06-06 | 2013-12-18 | 三一汽车制造有限公司 | Flushing valve and closed type hydraulic system |
| CN203412858U (en) * | 2013-08-12 | 2014-01-29 | 龙工（上海）精工液压有限公司 | Flushing valve for hydraulic motor of closed system |
| CN204200772U (en) * | 2014-11-03 | 2015-03-11 | 南京萨伯工业设计研究院有限公司 | Motor return flushing valve |
| CN204985175U (en) * | 2015-06-24 | 2016-01-20 | 海特克液压有限公司 | Take hydraulic transmission device of flushometer |
-
2015
- 2015-06-24 CN CN201510362597.9A patent/CN104930022B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202768975U (en) * | 2011-11-26 | 2013-03-06 | 邓鸣镛 | Blocking-resisting water economizer |
| CN203500155U (en) * | 2013-08-31 | 2014-03-26 | 西安志越机电科技有限公司 | Closed type hydraulic system of engineering vehicle travelling mechanism |
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| CN104930022A (en) | 2015-09-23 |
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Effective date of registration: 20180130 Address after: Ju Guang Yuan Yue Le Xi Jie Lucheng District of Wenzhou City, Zhejiang Province, No. 156 325000 Patentee after: Wenzhou haiteke power Limited by Share Ltd Address before: Ju Guang Yuan Yue Le Xi Jie Lucheng District of Wenzhou City, Zhejiang Province, No. 156 325000 Patentee before: High-tech Fluid Power Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 156 Yuelaixi Street, Lucheng District, Wenzhou City, Zhejiang Province, 325000 Patentee after: Heitek Power Co., Ltd. Address before: No. 156 Yuelaixi Street, Lucheng District, Wenzhou City, Zhejiang Province, 325000 Patentee before: Wenzhou haiteke power Limited by Share Ltd |