CN109027308B - Temperature control valve for adjusting trend of oil way - Google Patents
Temperature control valve for adjusting trend of oil way Download PDFInfo
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- CN109027308B CN109027308B CN201811087802.5A CN201811087802A CN109027308B CN 109027308 B CN109027308 B CN 109027308B CN 201811087802 A CN201811087802 A CN 201811087802A CN 109027308 B CN109027308 B CN 109027308B
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- Prior art keywords
- oil
- valve body
- sleeve
- movable shaft
- accommodating cavity
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention relates to a temperature control valve for adjusting the trend of an oil path, which comprises a valve body, wherein a containing cavity which penetrates through the valve body along the longitudinal direction of the valve body is arranged in the valve body, one end of the containing cavity is an oil inlet, a transverse oil duct which is communicated with the containing cavity is transversely arranged in the valve body along the transverse direction of the valve body, one end, far away from the containing cavity, of the transverse oil duct penetrates to the end part of the valve body and is connected with an oil outlet of an external radiator, a longitudinal oil duct which is communicated with the transverse oil duct is longitudinally arranged in the valve body, one end, far away from the transverse oil duct, of the longitudinal oil duct penetrates to the end part of the valve body and is connected with an external host, a first oil outlet which is communicated with the containing cavity and is connected with the oil inlet of the external radiator is arranged on the side edge of the valve body, and a, therefore, the trend of an oil way is changed, and the pneumatic device is sensitive in response and high in reliability.
Description
Technical Field
The invention relates to the technical field of temperature control valves, in particular to a temperature control valve for adjusting the trend of an oil way.
Background
Oil gets into the temperature-sensing valve from the oil inlet, because the temperature is too high, this oil that gets into need get back to the temperature-sensing valve again through the radiator cooling, then go back to the host computer through the filter, because the temperature of the oil that gets into is not invariable, sometimes the oil temperature is high, sometimes the oil temperature is low, the oil temperature is low can not get back to the temperature-sensing valve through the radiator heat dissipation, but traditional temperature-sensing valve structure, the oil that gets into all needs to go through once from the radiator, obviously can increase the cost, and increase the energy consumption, also there is at present to control the oil circuit trend through setting up expansion device in the temperature-sensing valve, make the oil that the temperature is high get back to the temperature-sensing valve through the radiator heat dissipation, go back to the host computer through the filter again, and the oil that the temperature is low directly goes back to the host computer through.
Disclosure of Invention
In view of the current situation of the prior art, the technical problem to be solved by the present invention is to provide a temperature control valve for adjusting the trend of an oil path, which has good sensitivity, high reliability and easy replacement.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a temperature control valve for adjusting oil circuit trend, includes the valve body, be equipped with the holding chamber that vertically runs through the valve body along the valve body in the valve body, the one end in this holding chamber is the oil inlet, transversely be equipped with along the valve body in the valve body with the horizontal oil duct of holding chamber intercommunication, this horizontal oil duct is kept away from holding chamber one end and is run through to the valve body tip and link to each other with outside radiator oil-out, vertically be equipped with along the valve body in the valve body with the vertical oil duct of horizontal oil duct intercommunication, this vertical oil duct is kept away from horizontal oil duct one end and is run through to the valve body tip and link to each other with outside host computer, the side of valve body be equipped with the first oil-out that the holding chamber.
Furthermore, a second oil outlet is formed in the communication position of the transverse oil duct and the accommodating cavity, the second oil outlet is located obliquely above the first oil outlet, and an oil return port is formed in the end, far away from the accommodating cavity, of the transverse oil duct and penetrates through the end of the valve body.
Furthermore, the pneumatic device comprises a fixed cover, a positioning sleeve, a movable shaft, a movable sleeve, a spring and a guide sleeve, wherein the positioning sleeve is fixed at one end, far away from the oil inlet, of the accommodating cavity, the fixed cover is fixedly connected with the positioning sleeve to form a cavity, the upper end of the movable shaft is slidably arranged in the cavity, the lower end of the movable shaft penetrates through the positioning sleeve to be connected with the top of the movable sleeve and drive the movable sleeve to move synchronously, the guide sleeve is in threaded connection with the oil inlet of the accommodating cavity, one end of the spring abuts against the guide sleeve, and the other end of the spring abuts against the bottom of the movable sleeve.
Furthermore, the top of the movable sleeve is provided with a connecting hole for connecting the movable shaft, and the movable shaft is inwards provided with a ring groove clamped with the connecting hole in a concave manner.
Furthermore, a plurality of U-shaped holes which are arranged at equal intervals are formed in the circumferential direction of the movable sleeve, the U-shaped holes are communicated with the first oil outlet and the second oil outlet in a natural spring state, and the U-shaped holes are communicated with the first oil outlet in a spring extrusion state.
Furthermore, an air inlet hole is formed in the top of the fixed cover, a round hole for oil to flow through is formed in the bottom of the movable sleeve, a through hole penetrating through the guide sleeve is formed in the guide sleeve, and the air inlet hole, the round hole, the through hole and the movable shaft are located on the same axis.
Further, the width of the round hole is smaller than that of the spring, and the width of the through hole is equal to that of the round hole.
Furthermore, the upper end of the movable shaft is provided with a stressed part which expands along the circumferential direction of the movable shaft, and the cross section of the stressed part is the same as that of the cavity.
Compared with the prior art, the invention has the advantages that: the pneumatic device is arranged in the temperature control valve, the movable shaft is driven to move downwards and drive the movable sleeve to move downwards in a pneumatic mode, so that the trend of an oil way is changed, the pneumatic device is sensitive in response and high in reliability, when the oil temperature is higher than 75 ℃, the movable shaft moves downwards under the action of pneumatic thrust and drives the movable sleeve to move downwards, the U-shaped hole is only communicated with the first oil outlet, the spring is extruded at the moment, oil enters from the oil inlet, enters the radiator through the first oil outlet for heat dissipation, then returns to the temperature control valve from the oil return port, and returns to the main machine through the filter; when the oil temperature is lower than 75 ℃, pneumatic thrust stops, the spring resets and pushes the movable sleeve to move upwards, so that the U-shaped hole is simultaneously communicated with the first oil outlet and the second oil outlet, oil enters from the oil inlet, one part enters the radiator through the first oil outlet for heat dissipation, then returns to the temperature control valve from the oil return port, returns to the host through the filter, and the other part directly returns to the host through the filter from the second oil outlet.
Drawings
FIG. 1 is a cross-sectional view of the spring of the present invention in its natural state;
FIG. 2 is a cross-sectional view of the spring in a compressed state in accordance with the present invention;
FIG. 3 is a cross-sectional view of the present invention with the pneumatic device omitted;
FIG. 4 is a cross-sectional view of a removable cover in accordance with the present invention;
FIG. 5 is a cross-sectional view of the loose axle of the present invention;
as shown in the figure, the valve body 1, the accommodating cavity 2, the oil inlet 3, the transverse oil passage 4, the longitudinal oil passage 5, the first oil outlet 6, the second oil outlet 7, the oil return port 8, the fixed cover 9, the positioning sleeve 10, the movable shaft 11, the movable sleeve 12, the spring 13, the guide sleeve 14, the cavity 15, the connecting hole 16, the annular groove 17, the U-shaped hole 18, the air inlet 19, the circular hole 20, the through hole 21, the stress part 22 and the convex ring 23.
Detailed Description
As shown in fig. 1-5, a temperature control valve for adjusting the trend of an oil path comprises a valve body 1, wherein a containing cavity 2 longitudinally penetrating through the valve body 1 along the valve body 1 is arranged in the valve body 1, an oil inlet 3 is arranged at one end of the containing cavity 2, a transverse oil path 4 communicated with the containing cavity 2 is transversely arranged in the valve body 1 along the valve body 1, one end of the transverse oil path 4 far away from the containing cavity 2 penetrates to the end of the valve body 1 to be connected with an oil outlet of an external radiator, a longitudinal oil path 5 communicated with the transverse oil path 4 is longitudinally arranged in the valve body 1 along the valve body 1, one end of the longitudinal oil path 5 far away from the transverse oil path 4 penetrates to the end of the valve body 1 to be connected with an external host, a first oil outlet 6 communicated with the containing cavity 2 and connected with the oil inlet of the external radiator is arranged at the side edge of the valve body 1, the second oil outlet 7 is positioned above the first oil outlet 6, one end of the transverse oil duct 4 far away from the accommodating cavity 2 penetrates to the end part of the valve body 1 to form an oil return opening 8, a pneumatic device for adjusting the trend of an oil way is arranged in the accommodating cavity 2, the pneumatic device comprises a fixed cover 9, a positioning sleeve 10, a movable shaft 11, a movable sleeve 12, a spring 13 and a guide sleeve 14, the positioning sleeve 10 is fixed at one end of the accommodating cavity 1 far away from the oil inlet 3, the fixed cover 9 is fixedly connected with the positioning sleeve 10 to form a cavity 15, the upper end of the movable shaft 11 is slidably arranged in the cavity 15, the lower end of the movable shaft 11 passes through the positioning sleeve 10 to be connected with the top of the movable sleeve 12 and drives the movable sleeve 12 to move synchronously, the guide sleeve 14 is in threaded connection with the oil inlet 3 of the accommodating cavity 2, one end of the spring 13 abuts against the guide sleeve 14, and the other end of the spring abuts against the bottom of the movable sleeve 12.
Preferably, the top of the movable sleeve 12 is provided with a connecting hole 16 for connecting the movable shaft 11, the movable shaft 11 is provided with a circular groove 17 recessed inwards and connected with the connecting hole 16 in a clamping manner, and the connecting hole 16 is connected with the circular groove 17 in a clamping manner, so that the movable shaft 11 and the movable sleeve 12 can move synchronously, and the oil body can be prevented from leaking from the connecting position of the movable shaft 11 and the movable sleeve 12.
Preferably, a plurality of U-shaped holes 18 are formed in the circumferential direction of the movable sleeve 12 at equal intervals, the U-shaped holes 18 are communicated with the first oil outlet 6 and the second oil outlet 7 in a natural state of the spring 13, the U-shaped holes 18 are communicated with the first oil outlet 6 in an extrusion state of the spring 13, the outer diameter of the movable sleeve 12 is equal to the inner diameter of the accommodating cavity 2, so that the outer wall of the movable sleeve 12 is attached to the inner wall of the accommodating cavity 2, when the movable sleeve 12 slides along the inner wall of the accommodating cavity 2, oil can only be shunted outwards from the U-shaped holes 18, the oil is prevented from leaking from gaps, the length of the U-shaped holes 18 is greater than the vertical height from the upper side of the first oil outlet 6 to the lower side of the second oil outlet 7, and the U-shaped holes 18 can be simultaneously communicated with the first oil outlet 6 and the second oil outlet 7 for shunting in the natural.
Preferably, the top of the fixed cover 9 is provided with an air inlet 19, the bottom of the movable sleeve 12 is provided with a round hole 20 for oil to flow through, the guide sleeve 14 is provided with a through hole 21 penetrating through the guide sleeve 14, the air inlet 19, the round hole 20, the through hole 21 and the movable shaft 11 are positioned on the same axis, on one hand, the movable shaft 11 can be ensured to be uniformly stressed, the abrasion can be reduced in sliding, the service life is prolonged, on the other hand, the oil can be ensured to smoothly flow into the movable sleeve 12 and collide against the lower end of the movable shaft 11 to be shunted all around, the U-shaped hole 18 is arranged close to the lower end of the movable sleeve 12, the lower end of the movable shaft 11 extends into the movable sleeve 12 and is positioned in the length range of the U-shaped hole 18, and as further preferred, the lower end of the movable shaft 11 and the central point of the.
Preferably, the width of the round hole 20 is smaller than that of the spring 13, so that the spring 13 can be abutted against the bottom of the movable sleeve 12, the spring 13 is prevented from slipping, the width of the through hole 21 is equal to that of the round hole 20, smooth inflow of oil bodies is ensured, and resistance is reduced.
Preferably, the guide sleeve 14 is provided with a convex ring 23, the outer diameter of the convex ring 23 is equal to the inner diameter of the spring 13, the inner diameter of the convex ring 23 is equal to the inner diameter of the through hole 21, and the convex ring 23 can be sleeved by the spring 13, so that the spring 13 is positioned, and the circumferential displacement of the spring 13 is prevented.
Preferably, the upper end of the movable shaft 11 is provided with a stressed part 22 which expands along the circumferential direction of the movable shaft 11, and the cross section of the stressed part 22 is the same as that of the cavity 15, so that the movable shaft 11 is stressed uniformly under the action of pneumatic thrust, and the abrasion can be reduced in the sliding process.
When the oil cooling device is used, before oil enters the temperature control valve, the temperature sensor senses the oil temperature, when the oil temperature is higher than 75 ℃, the temperature sensor sends a signal to the control panel, the control panel controls the electromagnetic valve to open the air passage, gas enters the cavity 15 from the air inlet 19 to push the movable shaft 11 to move downwards, the movable shaft 11 drives the movable sleeve 12 to move downwards, the spring 13 is extruded, the U-shaped hole 18 in the movable sleeve 12 is only communicated with the first oil outlet 6, the oil enters from the oil inlet 3, passes through the guide sleeve 14 and the movable sleeve 12, enters the radiator from the first oil outlet 6 to dissipate heat, and flows back to the temperature control valve from the oil return port 8 after heat dissipation, and then returns to the host through the transverse oil duct 4, the longitudinal oil duct 5 and the filter; when the oil temperature is lower than 75 ℃, the temperature sensor sends a signal to the control panel, the control panel controls the electromagnetic valve to close the air passage, the pneumatic thrust disappears, the spring 13 resets to push the movable sleeve 12 to move upwards, the movable sleeve 12 drives the movable shaft 11 to move upwards, the U-shaped hole 18 on the movable sleeve 12 is simultaneously communicated with the first oil outlet 6 and the second oil outlet 7, oil enters from the oil inlet 3, one part of the oil enters the radiator through the first oil outlet 6 for heat dissipation, after the heat dissipation, the oil returns to the temperature control valve from the oil return port 8 and then returns to the host through the transverse oil passage 4, the longitudinal oil passage 5 and the filter, and the other part of the oil directly passes through the transverse oil passage 4, the longitudinal oil passage 5 and the filter from the second oil outlet 7 and then returns to the host. The pneumatic device is easy to replace after being damaged, and the cost is low.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The temperature control valve for adjusting the trend of an oil way is characterized by comprising a valve body (1), wherein an accommodating cavity (2) longitudinally penetrating through the valve body (1) along the valve body (1) is arranged in the valve body (1), one end of the accommodating cavity (2) is an oil inlet (3), a transverse oil duct (4) communicated with the accommodating cavity (2) is transversely arranged in the valve body (1) along the valve body (1), one end, far away from the accommodating cavity (2), of the transverse oil duct (4) penetrates through the end part of the valve body (1) to be connected with an oil outlet of an external radiator, a longitudinal oil duct (5) communicated with the transverse oil duct (4) is longitudinally arranged in the valve body (1) along the valve body (1), one end, far away from the transverse oil duct (4), of the longitudinal oil duct (5) penetrates through the end part of the valve body (1) to be connected with an external host, a first oil outlet (6) communicated with the accommodating cavity (2) and connected with an oil, the pneumatic device is characterized in that a pneumatic device used for adjusting the trend of an oil way is arranged in the accommodating cavity (2), a second oil outlet (7) is formed in the communication position of the transverse oil duct (4) and the accommodating cavity (2), the second oil outlet (7) is located above the first oil outlet (6) in an inclined mode, one end, far away from the accommodating cavity (2), of the transverse oil duct (4) penetrates through the end portion of the valve body (1) to form an oil return opening (8), the pneumatic device comprises a fixed cover (9), a positioning sleeve (10), a movable shaft (11), a movable sleeve (12), a spring (13) and a guide sleeve (14), the positioning sleeve (10) is fixed in the accommodating cavity (2) and far away from one end of the oil inlet (3), the fixed cover (9) is fixedly connected with the positioning sleeve (10) to form a cavity (15), the upper end of the movable shaft (11) is slidably arranged in the cavity (15), and the lower end of the movable shaft (11) penetrates through the positioning sleeve (10) and is connected with the top of the The guide sleeve (14) is in threaded connection with an oil inlet (3) of the containing cavity (2), one end of the spring (13) abuts against the guide sleeve (14), and the other end of the spring abuts against the bottom of the movable sleeve (12).
2. The thermostatic valve for adjusting the trend of oil circuit according to claim 1 is characterized in that the top of the movable sleeve (12) is provided with a connecting hole (16) for connecting the movable shaft (11), and the movable shaft (11) is internally provided with a ring groove (17) which is clamped with the connecting hole (16).
3. The thermostatic valve for adjusting the trend of oil circuit as claimed in claim 1, characterized in that a plurality of equally spaced U-shaped holes (18) are formed in the circumferential direction of the movable sleeve (12), the U-shaped holes (18) are communicated with the first oil outlet (6) and the second oil outlet (7) in the natural state of the spring (13), and the U-shaped holes (18) are communicated with the first oil outlet (6) in the extrusion state of the spring (13).
4. The thermostat valve for adjusting the trend of an oil way as claimed in claim 1, wherein an air inlet hole (19) is formed in the top of the fixed cover (9), a round hole (20) for oil to flow through is formed in the bottom of the movable sleeve (12), a through hole (21) penetrating through the guide sleeve (14) is formed in the guide sleeve (14), and the air inlet hole (19), the round hole (20), the through hole (21) and the movable shaft (11) are located on the same axis.
5. Thermostatic valve for adjusting the oil circuit trend according to claim 4, characterized in that the width of the round hole (20) is smaller than the width of the spring (13), and the width of the through hole (21) is equal to the width of the round hole (20).
6. The thermostatic valve for adjusting the oil path trend according to claim 1, characterized in that the upper end of the movable shaft (11) is provided with a force-bearing part (22) which expands along the circumferential direction of the movable shaft (11), and the cross section of the force-bearing part (22) is the same as that of the cavity (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811087802.5A CN109027308B (en) | 2018-09-18 | 2018-09-18 | Temperature control valve for adjusting trend of oil way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811087802.5A CN109027308B (en) | 2018-09-18 | 2018-09-18 | Temperature control valve for adjusting trend of oil way |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109027308A CN109027308A (en) | 2018-12-18 |
| CN109027308B true CN109027308B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811087802.5A Active CN109027308B (en) | 2018-09-18 | 2018-09-18 | Temperature control valve for adjusting trend of oil way |
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| Country | Link |
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| CN (1) | CN109027308B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114658786A (en) * | 2022-03-22 | 2022-06-24 | 常州纺织服装职业技术学院 | Large hydraulic damper for nuclear power station |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4219499A1 (en) * | 1992-06-13 | 1993-12-16 | Manfred Enghardt Werkzeugbau F | Automatic shut-off valve operating system for compression cooling plant - has valve block containing suction valve, pressure valve, ventilation valve and by=pass valve with spring and control piston |
| DE102010015152A1 (en) * | 2010-04-16 | 2011-10-20 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Control valve for an oil-injected screw compressor |
| CN203906262U (en) * | 2014-06-10 | 2014-10-29 | 安庆卡尔特压缩机有限公司 | Temperature control valve of air compressor |
| WO2016021280A1 (en) * | 2014-08-04 | 2016-02-11 | 日立オートモティブシステムズ株式会社 | Hydraulic control valve and valve-timing control device for internal-combustion engine using hydraulic control valve |
| CN109699183B (en) * | 2016-07-11 | 2021-01-15 | 达纳加拿大公司 | Heat exchanger with dual internal valves |
| CN108302245A (en) * | 2018-04-11 | 2018-07-20 | 马鞍山启元自动化技术有限责任公司 | A kind of temperature controlled operated pneumatic valve and its control method |
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2018
- 2018-09-18 CN CN201811087802.5A patent/CN109027308B/en active Active
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| CN109027308A (en) | 2018-12-18 |
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Effective date of registration: 20230110 Address after: 337000 area a, Lianhua Industrial Park, Pingxiang City, Jiangxi Province Patentee after: Jiangxi Yingsai Compressor Co.,Ltd. Address before: 337100 B District, Lianhua County Industrial Park, Pingxiang, Jiangxi Patentee before: JIANGXI FENGSHI COMPRESSOR CO.,LTD. |