CN213982152U - Check valve group and gear box lubricating system - Google Patents
Check valve group and gear box lubricating system Download PDFInfo
- Publication number
- CN213982152U CN213982152U CN202022555566.4U CN202022555566U CN213982152U CN 213982152 U CN213982152 U CN 213982152U CN 202022555566 U CN202022555566 U CN 202022555566U CN 213982152 U CN213982152 U CN 213982152U
- Authority
- CN
- China
- Prior art keywords
- valve
- oil
- sleeve channel
- communicated
- valve sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- General Details Of Gearings (AREA)
Abstract
The utility model relates to the technical field of gear box lubricating systems, and discloses a check valve group, which comprises a valve body and a check valve component; the valve body is provided with an oil inlet, a first oil outlet and an inner cavity; the check valve assembly is arranged in the inner cavity; the one-way valve assembly comprises a valve sleeve channel, a valve core, a spring and a sliding block; the valve sleeve channel is arranged in the valve sleeve channel; the oil inlet, the valve sleeve channel and the first oil outlet are communicated in sequence; the sliding block is connected with the valve core through the spring, is positioned in the valve sleeve channel and can slide in a reciprocating manner along the length direction of the valve sleeve channel; when the spring is reset, namely the sliding block slides to the extreme end of the valve sleeve channel, the sliding block closes the through opening of the valve sleeve channel. The check valve group provided by the utility model realizes the flow direction adjustment of the lubricating oil, and effectively solves the problems of failure and damage of the temperature control valve and insufficient reliability; a gearbox lubricating system with the check valve group is further provided.
Description
Technical Field
The utility model relates to a gear box lubricating system technical field especially relates to a check valve group and gear box lubricating system.
Background
In the existing wind power gear box lubricating system technology, the wind power gear box lubricating system comprises a distributor, a cooler and a temperature control valve. The temperature control valve is used as a slide valve structure, the flow direction of lubricating oil is controlled by utilizing the temperature induction of the temperature control valve, and if the oil temperature is lower than 45 ℃, the lubricating oil directly enters the distributor and does not pass through the air cooler; when the temperature rises to 45 ℃, the valve core of the temperature control valve starts to move, and the branch which directly enters the distributor is gradually closed; when the temperature rises to 60 ℃, the branch directly entering the distributor is closed completely, and all the lubricating oil enters the distributor again through the air cooler. However, due to the influences of the service life and instability of the temperature control valve, such as easy failure and damage, the reliability of the lubricating system adopting the temperature control valve structure is insufficient, and the working condition of the wind power gear box lubricating system is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's problem, providing a flow direction that realizes lubricating oil adjusts, strong reliability's check valve group, still provides a gear box lubricating system who has this check valve group.
In order to achieve the above purpose, the utility model adopts the following scheme:
a valve manifold, comprising:
the valve body is provided with an oil inlet, a first oil outlet and an inner cavity;
a one-way valve assembly disposed within the inner cavity; the one-way valve assembly comprises a valve sleeve channel, a valve core, a spring and a sliding block; the valve sleeve channel is arranged in the valve sleeve channel; the oil inlet, the valve sleeve channel and the first oil outlet are communicated in sequence; the sliding block is connected with the valve core through the spring, is positioned in the valve sleeve channel and can slide in a reciprocating manner along the length direction of the valve sleeve channel; when the spring is reset, namely the sliding block slides to the extreme end of the valve sleeve channel, the sliding block closes the through opening of the valve sleeve channel.
Further, a second oil outlet communicated with the oil inlet is formed in the valve body.
Further, the valve core comprises a start end concave part and a guide rod part; the initial end concave part is arranged at the initial end of the valve sleeve channel; the initial end concave part is connected with the guide rod part; the sliding block comprises a sleeve rod part and a sliding plug part; the sleeve rod part is sleeved on the guide rod part; two ends of the spring are respectively connected with the initial end concave part and the piston part and are sleeved on the guide rod part and the sleeve rod part; when the sliding block slides back and forth along the length direction of the valve sleeve channel; the loop bar portion can reciprocate along the length direction of the guide bar portion.
Further, the sliding plug portion includes a tip portion and a sealing plug portion for closing a through port of the valve housing passage; one end of the sealing plug part is connected with the sleeve rod part, and the other end of the sealing plug part is connected with the sealing plug part.
Further, a small clamp spring is arranged between the initial end of the valve sleeve channel and the initial end concave part.
Further, a first clamping groove is formed in the inner peripheral wall of the starting end of the valve sleeve channel; a second clamping groove is formed in the outer peripheral wall of the initial end concave part; the small clamp spring is clamped between the first clamping groove and the second clamping groove.
Further, the one-way valve assembly is inserted into the inner cavity from one end of the valve body; one end of the valve body is provided with an end cover for sealing the inner cavity; a sealing ring is sleeved on the outer peripheral wall of the end cover; one end of the valve body is provided with a large clamp spring for clamping and fixing the end cover.
Further, an oil through hole is formed in the outer wall of the valve sleeve channel; the first oil outlet is communicated with the valve sleeve channel through the oil through hole.
The utility model also provides a gear box lubricating system, which comprises the check valve group; the gearbox lubricating system also comprises a gear pump, a filter, an air cooler and an oil distributor; an oil outlet of the gear pump is communicated with an oil inlet of the filter; the oil outlet of the filter is communicated with the oil inlet; the first oil outlet is communicated with an oil inlet of the oil distributor; the second oil outlet is communicated with an oil inlet of the air cooler; and an oil outlet of the air cooler is communicated with an oil inlet of the oil distributor.
Furthermore, an oil outlet of the gear pump is communicated with an oil inlet of the filter, an oil outlet of the filter is communicated with the oil inlet, the first oil outlet is communicated with an oil inlet of the oil distributor, the second oil outlet is communicated with an oil inlet of the air cooler, and the oil outlet of the air cooler is communicated with the oil inlet of the oil distributor through silicone tubes.
Compared with the prior art, the utility model has the advantages of as follows:
1. the utility model discloses a check valve group simple structure, stable performance, can replace current temperature-sensing valve completely, get into lubricating oil from the oil inlet, utilize the oil hydraulic pressure force in the lubricating oil admission valve body to carry out the switching of comparison in order to control this check valve group with the spring force, realize the flow direction regulation of lubricating oil, the damage of temperature-sensing valve inefficacy has been solved effectively, the not enough problem of reliability, high reliability, can avoid the phenomenon of the wind turbine generator system limit power operation because the high temperature of gear box lubricating system arouses, the generated energy of wind turbine generator system has been improved, reduce the overtemperature shutdown phenomenon of wind turbine generator system, improve the availability of wind-powered electricity.
2. The utility model discloses a check valve subassembly is as an independent overall structure, simple structure, and the after-sales maintenance and the change of being convenient for.
Drawings
The present application will be described in further detail with reference to the following drawings and detailed description.
Fig. 1 is a schematic sectional view of the check valve set of the present invention.
Fig. 2 is a schematic sectional view of the check valve assembly of the present invention.
Fig. 3 is a schematic view of the check valve set of the present invention at an angle.
Fig. 4 is a schematic structural diagram of the gear box lubricating system of the present invention.
The figure includes:
the oil-gas separator comprises a valve body 1, an oil inlet 11, a first oil outlet 12, a second oil outlet 13, an inner cavity 14, a check valve assembly 2, a valve sleeve channel 21, a valve core 22, a starting end concave part 221, a guide rod part 222, a spring 23, a sliding block 24, a sleeve rod part 241, a sliding plug part 242, a tip part 2421, a sealing plug part 2422, a small clamp spring 3, a first clamp groove 4, a second clamp groove 5, an end cover 6, a sealing ring 7, a large clamp spring 8, a gear pump 9, a filter 10, a check valve assembly 101, an air cooler 102 and an oil distributor 103.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, a check valve block includes a valve body 1 and a check valve assembly 2. The valve body 1 is provided with an oil inlet 11, a first oil outlet 12 and an inner cavity 14; the one-way valve assembly 2 is arranged in the inner cavity 14; the check valve component 2 is of an independent integral structure, has a simple structure and is convenient to repair and replace after sale. The one-way valve assembly 2 comprises a valve sleeve channel 21, a valve core 22, a spring 23 and a slide block 24; the valve sleeve channel 21 is arranged in the valve sleeve channel 21; the oil inlet 11, the valve sleeve channel 21 and the first oil outlet 12 are communicated in sequence; specifically, an oil through hole is formed in the outer wall of the valve sleeve channel 21; the first oil outlet 12 is communicated with the valve sleeve channel 21 through the oil through hole. The slider 24 is connected to the spool 22 through the spring 23, is located in the valve sleeve passage 21, and is capable of sliding back and forth along the length direction of the valve sleeve passage 21; when the spring 23 is reset, i.e. the slider 24 slides to the extreme end of the valve housing channel 21, the slider 24 closes the through opening of the valve housing channel 21. Lubricating oil enters the valve body 1 from the oil inlet 11, the pressure of the oil generated by the lubricating oil is compared with the force of the spring 23, when the pressure of the oil is greater than the force of the spring 23, the lubricating oil flows out from the first oil outlet 12 through the oil inlet 11 and the check valve assembly 2, specifically, the sliding block 24 is pushed by the pressure of the oil and is far away from the tail end of the valve sleeve channel 21, the lubricating oil flows into the valve sleeve channel 21 from the oil inlet 11, and when the first oil outlet 12 is communicated with the valve sleeve channel 21 in the sliding process of the sliding block 24, the lubricating oil flows out from the valve sleeve channel 21 through the first oil outlet 12; otherwise, when the oil hydraulic pressure is less than or equal to the force of the spring 23, the slide block 24 slides along the length direction of the valve sleeve channel 21 under the elastic force of the spring 23, moves towards the tail end of the valve sleeve channel 21 until sliding to the tail end of the valve sleeve channel 21, then the slide block 24 resets and is kept at the tail end of the valve sleeve channel 21 all the time, at the moment, the slide block 24 is pushed onto the inner end surface of the valve sleeve channel 21, the slide block 24 closes the through opening of the valve sleeve channel 21, oil film sealing is formed between the slide block and the valve sleeve channel, the lubricating oil cannot reach the first oil outlet 12 and flow out, the lubricating oil is prevented from entering the valve sleeve channel 21, the flow direction adjustment of the lubricating oil is realized, the problems of failure and damage of the temperature control valve and insufficient reliability are effectively solved, the high reliability is achieved, the phenomenon of limited power operation of the wind turbine generator caused by high temperature of a gearbox lubricating system can be avoided, the phenomenon of over-temperature shutdown of the wind turbine generator is improved, and the phenomenon of the wind turbine generator is reduced, the availability of the wind power plant is improved.
In this embodiment, the valve body 1 further has a second oil outlet 13 communicated with the oil inlet 11. When the oil pressure is less than or equal to the force of the spring 23, the lubricating oil can be controlled to pass through the oil inlet 11 and then directly flow out of the second oil outlet 13; when the pressure of the oil is larger than the force of the spring 23, the oil is closed through the second oil outlet 13 by external force, and the lubricating oil flows out of the first oil outlet 12 through the oil inlet 11 and the check valve assembly 2, so that the flow direction adjustment of the lubricating oil is realized, and the problems of failure, damage and insufficient reliability of the temperature control valve are effectively solved.
Wherein the spool 22 includes a start end recess 221 and a guide portion 222; the initial end recess 221 is provided at the initial end of the valve sleeve passage 21; the start end recess 221 is connected to the guide bar portion 222; the slider 24 includes a stem portion 241 and a sliding plug portion 242; the sleeve rod part 241 is sleeved on the guide rod part 222; both ends of the spring 23 are respectively connected with the initial end concave part 221 and the piston part and are sleeved on the guide rod part 222 and the sleeve rod part 241; while the slider 24 is reciprocally slid in the length direction of the valve housing passage 21; the stem portion 241 is reciprocally movable in a longitudinal direction of the guide rod portion 222. The valve core 22 is assisted to guide the spring 23 by connecting the two ends of the spring 23 with the initial end recess 221 and the piston part respectively and sleeving the guide rod part 222 and the sleeve rod part 241, and at the same time, the valve core 22 also guides the slide block 24, the guide rod part 222 is inserted into the sleeve rod part 241 of the slide block 24 to assist the slide block 24 to make a reciprocating linear motion along the valve core 22 in the valve sleeve channel 21, and the specific position is determined by the force of the spring 23 and the oil hydraulic force together. When the oil pressure is smaller than or equal to the force of the spring 23, the sliding block 24 slides along the length direction of the valve sleeve channel 21 under the action of the elastic force of the spring 23, moves towards the tail end of the valve sleeve channel 21 until sliding to the tail end of the valve sleeve channel 21, then the sliding block 24 resets and is kept at the tail end of the valve sleeve channel 21 all the time, at the moment, the sliding block 24 is propped against the inner end face of the valve sleeve channel 21, the sliding block 24 closes the through opening of the valve sleeve channel 21, oil film sealing is formed between the through opening and the through opening, lubricating oil cannot reach the first oil outlet 12 to flow out, the lubricating oil is prevented from entering the valve sleeve channel 21, the flow direction adjustment of the lubricating oil is realized, and the problems that the temperature control valve is failed and damaged and the reliability is insufficient are effectively solved.
Preferably, the sliding plug part 242 includes a tip part 2421 and a sealing plug part 2422 for closing the through opening of the valve housing passage 21; one end of the sealing plug part 2422 is connected with the stem part 241, and the other end is connected with the sealing plug part 2422. By arranging the sealing plug part 2422 and the tip part 2421 to form the sliding plug part 242, the sliding block 24 is more tightly propped against the inner end surface of the valve sleeve channel 21, oil film sealing is formed between the sliding block and the inner end surface, and lubricating oil cannot reach the first oil outlet 12 and flow out, so that the lubricating oil is prevented from entering the valve sleeve channel 21.
In order to improve the stability of the valve core 22 and facilitate the assembly and disassembly, a small circlip 3 is arranged between the initial end of the valve sleeve channel 21 and the initial end concave part 221. The initial end concave part 221, namely the valve core 22 is fixed at the initial end of the valve sleeve channel 21 through the small clamp spring 3, the structure is stable, and the disassembly and the assembly are convenient.
Preferably, a first clamping groove 4 is arranged on the inner peripheral wall at the initial end of the valve sleeve channel 21; a second clamping groove 5 is formed in the outer peripheral wall of the initial end concave part 221; the small clamp spring 3 is clamped between the first clamping groove 4 and the second clamping groove 5. Through setting up little jump ring 3 at first draw-in groove 4 and second draw-in groove 5, help improving the stability of case 22.
In order to enhance the stability of the whole one-way valve assembly 2 and form good sealing performance to an inner cavity 14, the one-way valve assembly 2 is inserted into the inner cavity 14 from one end of the valve body 1; one end of the valve body 1 is provided with an end cover 6 for sealing the inner cavity 14; a sealing ring 7 is sleeved on the peripheral wall of the end cover 6; and one end of the valve body 1 is provided with a large clamp spring 8 for clamping and fixing the end cover 6.
The utility model also provides a gear box lubricating system specifically is wind-powered electricity generation gear box lubrication system. The gearbox lubrication system comprises a check valve block 101 as described above; the gearbox lubricating system further comprises a gear pump 9, a filter 10, an air cooler 102 and an oil distributor 103; the oil outlet of the gear pump 9 is communicated with the oil inlet of the filter 10; the oil outlet of the filter 10 is communicated with the oil inlet 11; the first oil outlet 12 is communicated with an oil inlet of the oil distributor 103; the second oil outlet 13 is communicated with an oil inlet of the air cooler 102; an oil outlet of the wind cooler 102 communicates with an oil inlet of the oil distributor 103. An oil outlet of the gear pump 9 is communicated with an oil inlet of the filter 10, an oil outlet of the filter 10 is communicated with the oil inlet 11, the first oil outlet 12 is communicated with an oil inlet of the oil distributor 103, the second oil outlet 13 is communicated with an oil inlet of the air cooler 102, and the oil outlet of the air cooler 102 is communicated with the oil inlet of the oil distributor 103 through silicone tubes.
In order for the gearbox to operate consistently and reliably at the allowable temperatures, the gearbox lubrication system must cool the lubricating oil reasonably efficiently. When the gearbox lubrication system is applied to a high-temperature environment, in order to facilitate rapid cooling of the lubricating oil, the lubricating oil is required to completely pass through a cooler and then return to the gearbox; in a low-temperature environment, because lubricating oil has the defects of high viscosity, poor flowability and the like, if a large amount of lubricating oil passes through the air cooler, great resistance is generated, so that the pressure of a system is increased, various hazards are generated, and even the phenomena of bulging and explosion of radiating fins of the air cooler and the like occur, so that the condition that a large amount of lubricating oil passes through the air cooler is avoided in the low-temperature environment.
Therefore, in this embodiment, the lubricating oil passes through the filter 10 under the action of the gear pump 9, and then enters the check valve group 101 from the oil inlet 11, when the oil pressure is greater than the force of the spring 23, the lubricating oil is in a low state, the air cooler 102 closes the second oil outlet 13, the lubricating oil passes through the oil inlet 11, the check valve group 2, and flows out from the first oil outlet 12, specifically, the sliding block 24 is pushed by the oil pressure to be away from the end of the valve sleeve channel 21, the lubricating oil flows into the valve sleeve channel 21 from the oil inlet 11, and during the sliding process of the sliding block 24, when the first oil outlet 12 is communicated with the valve sleeve channel 21, the lubricating oil flows out from the valve sleeve channel 21 through the first oil outlet 12 and then enters the oil distributor 103. When the oil pressure is smaller than or equal to the force of the spring 23, the lubricating oil is in a high-temperature state, at this time, under the action of the elastic force of the spring 23, the slider 24 slides along the length direction of the valve sleeve channel 21 and moves towards the tail end of the valve sleeve channel 21 until the slider 24 slides to the tail end of the valve sleeve channel 21, then the slider 24 is reset and is kept at the tail end of the valve sleeve channel 21, at this time, the slider 24 is pushed against the inner end face of the valve sleeve channel 21, the slider 24 closes the through hole of the valve sleeve channel 21, oil film sealing is formed between the through hole and the through hole, the lubricating oil cannot flow out from the first oil outlet 12, at this time, the air cooler 102 is opened for the second oil outlet 13, the lubricating oil is cooled by the air cooler and then enters the oil distributor 103, and the reliability of the whole gear box lubricating system is greatly improved.
To sum up, the embodiment of the utility model provides a check valve group, wherein, this check valve group can avoid lubricating oil to get into in the valve barrel passageway 21, realizes the flow direction regulation of lubricating oil, has solved the damage of temperature-sensing valve inefficacy effectively, the not enough problem of reliability, and the strong reliability can avoid because the phenomenon of the high wind turbine generator system limit power operation that arouses of gear box lubricating system temperature, has improved wind turbine generator system's generated energy, reduces the overtemperature shutdown phenomenon of wind turbine generator system, improves the availability ratio of wind-powered electricity generation field.
The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present application, and these modifications and substitutions should also be regarded as the protection scope of the present application.
Claims (10)
1. A check valve pack, characterized by: the method comprises the following steps:
the valve body is provided with an oil inlet, a first oil outlet and an inner cavity;
a one-way valve assembly disposed within the inner cavity; the one-way valve assembly comprises a valve sleeve channel, a valve core, a spring and a sliding block; the valve sleeve channel is arranged in the valve sleeve channel; the oil inlet, the valve sleeve channel and the first oil outlet are communicated in sequence; the sliding block is connected with the valve core through the spring, is positioned in the valve sleeve channel and can slide in a reciprocating manner along the length direction of the valve sleeve channel; when the spring is reset, namely the sliding block slides to the extreme end of the valve sleeve channel, the sliding block closes the through opening of the valve sleeve channel.
2. The valve manifold of claim 1, wherein: the valve body is also provided with a second oil outlet communicated with the oil inlet.
3. The valve manifold of claim 2, wherein: the valve core comprises a start end concave part and a guide rod part; the initial end concave part is arranged at the initial end of the valve sleeve channel; the initial end concave part is connected with the guide rod part; the sliding block comprises a sleeve rod part and a sliding plug part; the sleeve rod part is sleeved on the guide rod part; two ends of the spring are respectively connected with the initial end concave part and the piston part and are sleeved on the guide rod part and the sleeve rod part; when the sliding block slides back and forth along the length direction of the valve sleeve channel; the loop bar portion can reciprocate along the length direction of the guide bar portion.
4. A set of check valves according to claim 3, wherein: the sliding plug portion includes a tip portion and a sealing plug portion for closing a through port of the valve housing passage; one end of the sealing plug part is connected with the sleeve rod part, and the other end of the sealing plug part is connected with the sealing plug part.
5. A set of check valves according to claim 3, wherein: and a small snap spring is arranged between the initial end of the valve sleeve channel and the initial end concave part.
6. The set of check valves of claim 5, wherein: a first clamping groove is formed in the inner peripheral wall at the initial end of the valve sleeve channel; a second clamping groove is formed in the outer peripheral wall of the initial end concave part; the small clamp spring is clamped between the first clamping groove and the second clamping groove.
7. The valve manifold of claim 2, wherein: the one-way valve assembly is inserted into the inner cavity from one end of the valve body; one end of the valve body is provided with an end cover for sealing the inner cavity; a sealing ring is sleeved on the outer peripheral wall of the end cover; one end of the valve body is provided with a large clamp spring for clamping and fixing the end cover.
8. The valve manifold of claim 2, wherein: an oil through hole is formed in the outer wall of the valve sleeve channel; the first oil outlet is communicated with the valve sleeve channel through the oil through hole.
9. A gearbox lubrication system characterized by: comprising a set of one-way valves according to any one of claims 2 to 8; the gearbox lubricating system also comprises a gear pump, a filter, an air cooler and an oil distributor; an oil outlet of the gear pump is communicated with an oil inlet of the filter; the oil outlet of the filter is communicated with the oil inlet; the first oil outlet is communicated with an oil inlet of the oil distributor; the second oil outlet is communicated with an oil inlet of the air cooler; and an oil outlet of the air cooler is communicated with an oil inlet of the oil distributor.
10. A gearbox lubrication system as defined in claim 9, wherein: and an oil outlet of the gear pump is communicated with an oil inlet of the filter, an oil outlet of the filter is communicated with the oil inlet, the first oil outlet is communicated with an oil inlet of the oil distributor, the second oil outlet is communicated with an oil inlet of the air cooler, and the oil outlet of the air cooler is communicated with the oil inlet of the oil distributor through silicone tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022555566.4U CN213982152U (en) | 2020-11-06 | 2020-11-06 | Check valve group and gear box lubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022555566.4U CN213982152U (en) | 2020-11-06 | 2020-11-06 | Check valve group and gear box lubricating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213982152U true CN213982152U (en) | 2021-08-17 |
Family
ID=77261588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022555566.4U Active CN213982152U (en) | 2020-11-06 | 2020-11-06 | Check valve group and gear box lubricating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213982152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001183A (en) * | 2021-11-06 | 2022-02-01 | 山东华成中德传动设备有限公司 | Instrument seat with pressure relief valve adjusting device |
-
2020
- 2020-11-06 CN CN202022555566.4U patent/CN213982152U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001183A (en) * | 2021-11-06 | 2022-02-01 | 山东华成中德传动设备有限公司 | Instrument seat with pressure relief valve adjusting device |
| CN114001183B (en) * | 2021-11-06 | 2023-06-30 | 山东华成中德传动设备有限公司 | Instrument seat with pressure release valve adjusting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213982152U (en) | Check valve group and gear box lubricating system | |
| CN111653536B (en) | Automatic phase change cooling system | |
| CN105863874A (en) | Stirling engine | |
| CN107939460B (en) | Expansion unit for high-power-level compressed air energy storage system | |
| KR101610175B1 (en) | Oil cooler for vehicle | |
| CN105065651A (en) | Temperature regulation system for controlling temperature of gearbox oil through cooling media | |
| CN111878211B (en) | Efficient hybrid engine cooling system | |
| CN108087530B (en) | Heat exchange assembly | |
| CN101187351A (en) | Fuel pump | |
| CN105134927A (en) | Temperature control device for controlling oil temperature of gearbox through cooling media | |
| CN116838509A (en) | Liquid ammonia phase change cooling type hybrid power thermal management system | |
| CN110953110B (en) | Rectifier type liquid turbine and working method thereof | |
| CN215673873U (en) | Magnetic pressure difference control valve for wind power lubrication and cooling | |
| CN214331430U (en) | Temperature control valve of lubricating and cooling system, valve body assembly, application system and wind driven generator | |
| US10890138B2 (en) | Closed cycle regenerative heat engines | |
| CN102678250A (en) | Engine piston cooling device | |
| CN108087532B (en) | Heat exchange assembly | |
| CN209925118U (en) | Internal combustion engine cooling circulation system | |
| CN210372080U (en) | Direct-acting electromagnetic temperature control valve | |
| CN210623285U (en) | Temperature bypass valve | |
| CN201747451U (en) | Motor oil cooling system of air cooled engine | |
| CN108591802B (en) | Special pressure follow-up temperature control system for wind power cooler | |
| CN202187819U (en) | Novel liquid cooling motorcycle cooler | |
| CN219626964U (en) | Novel liquid cooling terminal and rifle that charges | |
| CN205895744U (en) | But piston pneumatic cylinder of self return |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |