CN112228603A - Pressure reducing valve - Google Patents
Pressure reducing valve Download PDFInfo
- Publication number
- CN112228603A CN112228603A CN202011156352.8A CN202011156352A CN112228603A CN 112228603 A CN112228603 A CN 112228603A CN 202011156352 A CN202011156352 A CN 202011156352A CN 112228603 A CN112228603 A CN 112228603A
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- Prior art keywords
- valve core
- cavity
- pressure
- valve
- low
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side 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
- 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
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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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
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
Abstract
The invention provides a pressure reducing valve which comprises a valve body, a valve core assembly and a piston assembly, wherein the valve core assembly is arranged on the valve body; a control cavity, a low-pressure cavity and a high-pressure cavity are formed in the valve body, the control cavity is communicated with a control gas inlet on the valve body, the low-pressure cavity is communicated with a low-pressure gas outlet on the valve body, and the high-pressure cavity is communicated with a high-pressure gas inlet on the valve body; the control cavity and the low pressure cavity are positioned in the same cavity in the valve body, the high pressure cavity and the low pressure cavity are separated by a partition plate, and a through hole is formed in the partition plate; the valve core assembly is movably arranged in the high-pressure cavity and can adjust the opening size of a vent hole between the high-pressure cavity and the low-pressure cavity; the piston assembly is arranged in the control cavity in a telescopic manner and can act on the valve core assembly through the low-pressure cavity, so that the opening degree of the vent hole is adjusted; the pressure reducing valve provided by the invention can effectively reduce the pressure of high-pressure gas into corresponding low-pressure gas for output, and keeps the stability of output pressure; the device has the advantages of compact structure, convenience in installation and adjustment, high practicability and the like.
Description
Technical Field
The invention belongs to the technical field of pressure reducing valves, and particularly relates to a pressure reducing valve.
Background
The existing engineering field needs to convert high-pressure gas into corresponding low-pressure gas, so that the use is convenient; the existing gas pressure reducing valve has a relatively complex structure and unstable output gas pressure.
Based on the technical problems of the gas pressure reducing valve in the process of converting high-pressure gas into low-pressure gas, no related solution is provided; there is therefore a pressing need to find effective solutions to the above problems.
Disclosure of Invention
The invention aims to provide a pressure reducing valve aiming at overcoming the defects in the prior art and aims to solve the problem that the conventional high-pressure gas is reduced into low-pressure gas.
The invention provides a pressure reducing valve which comprises a valve body, a valve core assembly and a piston assembly, wherein the valve core assembly is arranged on the valve body; a control cavity a, a low-pressure cavity b and a high-pressure cavity c are formed in the valve body, the control cavity a is communicated with a control gas inlet on the valve body, the low-pressure cavity b is communicated with a low-pressure gas outlet on the valve body, and the high-pressure cavity c is communicated with a high-pressure gas inlet on the valve body; the control cavity a and the low-pressure cavity b are positioned in the same cavity in the valve body, the high-pressure cavity c and the low-pressure cavity b are separated by a partition plate, and a through hole is formed in the partition plate; the valve core assembly is movably arranged in the high-pressure cavity c and can adjust the opening degree of the vent hole between the high-pressure cavity c and the low-pressure cavity b; the piston assembly is arranged in the control cavity a in a telescopic mode and can act on the valve core assembly through the low-pressure cavity b, and therefore the opening degree of the vent hole is adjusted.
Further, the pressure reducing valve also comprises a valve core seat; the valve core assembly comprises a valve core and a valve core spring; the valve core seat is arranged in the high-pressure cavity c and forms a vent hole with the through hole of the partition plate; a cavity is formed in the valve core seat; the valve core is arranged in the cavity in a telescopic manner and can seal the vent hole; the valve core spring is sleeved at one end of the valve core and can extrude the valve core to seal the vent hole; the other end of the valve core is provided with a support column which passes through the through hole and is abutted against the piston assembly.
Further, the piston assembly comprises a piston, an upper balance spring and a lower balance spring; the piston is slidably arranged in the control cavity a and can compress the abutting column, so that the sizes of the valve core and the vent hole are adjusted; the upper balance spring is arranged in the control cavity a, one end of the upper balance spring is abutted against the top of the control cavity a, and the other end of the upper balance spring is abutted against the top surface of the piston; the lower balance spring is arranged in the low-pressure cavity b, one end of the lower balance spring is abutted to the bottom of the low-pressure cavity b, and the other end of the lower balance spring is abutted to the bottom surface of the piston.
Furthermore, the reducing valve also comprises a valve core opening degree indicating rod, an end cover and a scale cap; the end cover is arranged on the valve body in a sealing manner and is positioned at the top of the control cavity a; one end of the valve core opening degree indicating rod penetrates through the end cover along the axial direction of the valve body to extend into the control cavity a and is connected with the piston; the valve core opening degree indicating rod can move on the end cover in a telescopic mode; the scale cap is arranged at the other end of the valve core opening indicating rod and can display the opening size of the vent hole along with the movement of the valve core opening indicating rod.
Further, the reducing valve further comprises a distance sensor, the distance sensor is arranged on the end cover through a sensor support, and the distance sensor is used for detecting the telescopic distance of the valve core opening indicating rod, so that the opening size of the vent hole is detected.
Furthermore, a locking screw is arranged on the scale cap and used for positioning the position of the scale cap on the valve core opening degree indicating rod; and a sealing ring is arranged between the valve core opening degree indicating rod and the connecting hole of the end cover.
Furthermore, scales are arranged on the outer surface of the scale cap along the axial direction of the valve core opening indicating rod, and the scales are mm to mm; a convex ring is arranged in the end cover connecting hole in a protruding mode, and the top end of the convex ring is used as an initial position indication d; when the piston moves towards the low-pressure cavity b, the valve core opening indicating rod drives the scale cap to move downwards, and the scale of the initial position indication d pointing to the scale cap is the opening of the vent hole.
Furthermore, an adjusting bolt is arranged at the bottom of the valve core seat, and the adjusting bolt is arranged at the bottom of the valve core seat through a locking nut; the adjusting bolt can extend into the cavity and is coaxially arranged with the valve core; the adjusting bolt adjusts the maximum opening of the valve core according to the length of the adjusting bolt extending into the cavity.
Furthermore, an O-shaped sealing ring is arranged between the piston and the side wall of the control cavity a; an O-shaped sealing ring is arranged between the valve core seat and the side wall of the high-pressure cavity c.
Further, the valve core opening degree indicating rod is in threaded connection with the piston.
The pressure reducing valve provided by the invention can effectively reduce the pressure of high-pressure gas into corresponding low-pressure gas for output, and keeps the stability of output pressure; the scheme provided by the invention has the advantages of compact structure, convenience in installation and adjustment and higher practicability.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention will be further explained with reference to the drawings, in which:
FIG. 1 is a schematic view of a pressure reducing valve according to the present invention;
FIG. 2 is a schematic view illustrating a pressure reducing operation of the pressure reducing valve according to the present invention;
FIG. 3 is a partial schematic view of a pressure reducing valve of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 1;
FIG. 5 is an enlarged view of a portion B of FIG. 1;
fig. 6 is an enlarged view of a portion C of fig. 1.
In the figure: 1. a valve body; 2. a valve core; 3. a piston; 4. a valve core opening degree indicating rod; 5. an end cap; 6. an upper balance spring; 7. a lower balance spring; 8. a spool spring; 9. a valve core seat; 10. adjusting the stud; 11. locking the nut; 12. a distance sensor; 13. a sensor holder; 14. locking the screw; 15. a scale cap; 16. a high pressure gas inlet; 17. a low pressure gas outlet; 18. controlling the gas inlet; 19. a partition plate; 20. a seal ring; 21. supporting columns; 22. a through hole; 23. and (4) a vent hole.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 6, the present invention provides a pressure reducing valve, which specifically includes a valve body 1, a valve core assembly and a piston assembly; a control cavity a, a low-pressure cavity b and a high-pressure cavity c are formed in the valve body 1, the control cavity a is communicated with a control gas inlet 18 on the valve body 1, the low-pressure cavity b is communicated with a low-pressure gas outlet 17 on the valve body 1, and the high-pressure cavity c is communicated with a high-pressure gas inlet 16 on the valve body 1; the control cavity a and the low pressure cavity b are positioned in the same cavity in the valve body 1, the high pressure cavity c and the low pressure cavity b are separated by a partition plate 19, and a through hole 22 is formed in the partition plate 19; the valve core assembly is movably arranged in the high-pressure cavity c and can adjust the opening degree of the vent hole 23 between the high-pressure cavity c and the low-pressure cavity b; the piston assembly is arranged in the control cavity a in a telescopic mode and can act on the valve core assembly through the low-pressure cavity b, and therefore the opening degree of the vent hole 23 is adjusted; in the structure, the valve core assembly and the piston assembly can be installed as independent module structures, so that the installation is convenient; the invention provides a pressure reducing valve, belonging to a pilot piston type pressure reducing valve, which is mainly used for reducing high-pressure gas into corresponding low-pressure gas to be output by adjusting the air pressure of a control cavity and keeping the output pressure stable; specifically, as shown in fig. 2, high-pressure air enters the high-pressure chamber c from the high-pressure air inlet 16, enters the low-pressure chamber b after being decompressed by the valve core assembly, and then flows through the low-pressure air outlet 17; the control air enters the control cavity a from the control air inlet 18, and the extrusion piston assembly acts on the valve core assembly to adjust the opening degree of the vent hole 23, so that the air pressure is adjusted.
Preferably, in combination with the above solution, as shown in fig. 1 to 6, the pressure reducing valve further comprises a valve core seat 9; the valve core assembly comprises a valve core 2 and a valve core spring 8; the valve core seat 9 is arranged in the high-pressure cavity c and forms a vent hole 23 with the through hole 22 of the clapboard 19; a cavity is formed in the valve core seat 9; the valve core 2 is arranged in the cavity in a telescopic manner and can seal the vent hole 23; the valve core spring 8 is sleeved at one end of the valve core 2 and can extrude the valve core 2 to seal the vent hole 23; the other end of the valve core 2 is provided with a support column 21, and the support column 21 penetrates through the through hole 22 and is abutted against the piston assembly.
Preferably, in combination with the above solution, as shown in fig. 1 to 6, the piston assembly comprises a piston 3, an upper balance spring 6 and a lower balance spring 7; the piston 3 is slidably arranged in the control cavity a and can compress the support column 21, so that the sizes of the valve core 2 and the vent hole 23 are adjusted; the upper balance spring 6 is arranged in the control cavity a, one end of the upper balance spring 6 is abutted against the top of the control cavity a, and the other end of the upper balance spring 6 is abutted against the top surface of the piston 3; the lower balance spring 7 is arranged in the low-pressure cavity b, one end of the lower balance spring 7 is abutted against the bottom of the low-pressure cavity b, and the other end of the lower balance spring 7 is abutted against the bottom surface of the piston 3; by adopting the scheme, the balance springs are arranged on the upper end surface and the lower end surface of the piston 3, so that the piston is always in a dynamic balance state, the influence factors of the static friction force of the O-shaped sealing ring of the piston are reduced, and the sensitivity of the piston is improved; further, the spring force of the upper balance spring 6 is slightly larger than the spring force of the lower balance spring 7.
Preferably, in combination with the above scheme, as shown in fig. 1 to 6, the pressure reducing valve further includes a valve core opening degree indicating rod 4, an end cover 5, and a scale cap 16; the end cover 5 is hermetically arranged on the valve body 1 and is positioned at the top of the control cavity a; one end of a valve core opening degree indicating rod 4 penetrates through an end cover 5 along the axial direction of the valve body 1 to extend into the control cavity a and is connected with the piston 3; the valve core opening degree indicating rod 4 can move on the end cover 5 in a telescopic mode; the scale cap 16 is arranged at the other end of the valve core opening indicating rod 4 and can display the opening size of the vent hole 23 along with the movement of the valve core opening indicating rod 4; the valve core opening degree indicating rod 4 is in threaded connection with the piston 3.
Preferably, with reference to the above scheme, as shown in fig. 1 to 6, the pressure reducing valve further includes a distance sensor 12, the distance sensor 12 is disposed on the end cover 5 through a sensor holder 13, and the distance sensor 12 is configured to detect a telescopic distance of the valve element opening indicating rod 4, so as to detect an opening size of the vent hole 23; specifically, the distance sensor 12 is used for detecting the telescopic distance of the scale cap on the valve element opening indicating rod 4, and remote display of the valve element opening can be realized through distance signal change feedback and background software processing.
Preferably, in combination with the above scheme, as shown in fig. 1 to 6, a locking screw 14 is arranged on the scale cap 16, and the locking screw 14 is used for positioning the position of the scale cap 16 on the valve core opening degree indication rod 4; when the valve core is in a closed state, the scale cap is screwed into the upper end of the valve core opening indicating rod 4 until the initial position indication d is located at the scale 0mm, and finally the locking screw 14 is screwed down for fixing; and a sealing ring is arranged between the connecting hole of the valve core opening degree indicating rod 4 and the end cover 5.
Preferably, in combination with the above scheme, as shown in fig. 1 to 6, scales are provided on the outer surface of the scale cap 16 along the axial direction of the valve core opening degree indication rod 4, and the scales are 0mm to 5 mm; a convex ring is arranged in a convex manner in a connecting hole of the end cover 5, and the top end of the convex ring is used as an initial position indication d; when the piston 3 moves towards the low-pressure cavity b, the valve core opening indicating rod 4 drives the scale cap 16 to move downwards, the scale of the starting position indication d pointing to the scale cap 16 is the opening of the vent hole 23, namely when the starting position d pointing to the scale is 0mm, the opening of the vent hole 23 is zero, and the valve core is in a closed state; when the pointing scale of the starting position d is 1 mm, the opening of the vent hole 23 is 1 mm, when the pointing scale of the starting position d is 2 mm, the opening of the vent hole 23 is 2 mm, when the pointing scale of the starting position d is 3 mm, the opening of the vent hole 23 is 3 mm, when the pointing scale of the starting position d is 4 mm, the opening of the vent hole 23 is 4 mm, and when the pointing scale of the starting position d is 5mm, the opening of the vent hole 23 is 5 mm.
Preferably, in combination with the above solutions, as shown in fig. 1 to 6, an adjusting bolt 10 is provided at the bottom of the valve core seat 9, and the adjusting bolt 10 is provided at the bottom of the valve core seat 9 through a lock nut 11; the adjusting bolt 10 can extend into the cavity and is coaxially arranged with the valve core 2; the adjusting bolt 10 adjusts the maximum opening of the valve core 2 according to the length of the adjusting bolt extending into the cavity.
Preferably, in combination with the above solution, as shown in fig. 1 to 6, an O-ring is provided between the piston 3 and the sidewall of the control chamber a; an O-shaped sealing ring is arranged between the valve core seat 9 and the side wall of the high-pressure cavity c.
The pressure reducing valve provided by the invention can effectively reduce the pressure of high-pressure gas into corresponding low-pressure gas for output, and keeps the stability of output pressure; the scheme provided by the invention has the advantages of compact structure, convenience in installation and adjustment and higher practicability.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (10)
1. The pressure reducing valve is characterized by comprising a valve body (1), a valve core assembly and a piston assembly; a control cavity (a), a low-pressure cavity (b) and a high-pressure cavity (c) are formed in the valve body (1), the control cavity (a) is communicated with a control gas inlet (18) on the valve body (1), the low-pressure cavity (b) is communicated with a low-pressure gas outlet (17) on the valve body (1), and the high-pressure cavity (c) is communicated with a high-pressure gas inlet (16) on the valve body (1); the control cavity (a) and the low-pressure cavity (b) are positioned in the same cavity in the valve body (1), the high-pressure cavity (c) and the low-pressure cavity (b) are separated by a partition plate (19), and a through hole (22) is formed in the partition plate (19); the valve core assembly is movably arranged in the high-pressure cavity (c) and can adjust the opening degree of a vent hole (23) between the high-pressure cavity (c) and the low-pressure cavity (b); the piston assembly is arranged in the control cavity (a) in a telescopic mode and can act on the valve core assembly through the low-pressure cavity (b), and therefore the opening degree of the vent hole (23) is adjusted.
2. The relief valve according to claim 1, further comprising a valve core seat (9); the valve core assembly comprises a valve core (2) and a valve core spring (8); the valve core seat (9) is arranged in the high-pressure cavity (c) and forms the vent hole (23) with the through hole (22) of the clapboard (19); a cavity is formed in the valve core seat (9); the valve core (2) is arranged in the cavity in a telescopic mode and can seal the vent hole (23); the valve core spring (8) is sleeved at one end of the valve core (2) and can extrude the valve core (2) to seal the vent hole (23); the other end of the valve core (2) is provided with a support column (21), and the support column (21) penetrates through the through hole (22) and abuts against the piston assembly.
3. The pressure reducing valve according to claim 2, wherein the piston assembly comprises a piston (3), an upper balancing spring (6) and a lower balancing spring (7); the piston (3) is slidably arranged in the control cavity (a) and can compress the support column (21) so as to adjust the sizes of the valve core (2) and the vent hole (23); the upper balance spring (6) is arranged in the control cavity (a), one end of the upper balance spring (6) is abutted against the top of the control cavity (a), and the other end of the upper balance spring (6) is abutted against the top surface of the piston (3); the lower balance spring (7) is arranged in the low-pressure cavity (b), one end of the lower balance spring (7) is abutted to the bottom of the low-pressure cavity (b), and the other end of the lower balance spring (7) is abutted to the bottom surface of the piston (3).
4. The pressure reducing valve according to claim 3, further comprising a spool opening degree indicating rod (4), an end cap (5), and a scale cap (15); the end cover (5) is arranged on the valve body (1) in a sealing mode and is positioned at the top of the control cavity (a); one end of the valve core opening degree indicating rod (4) penetrates through the end cover (5) along the axial direction of the valve body (1) to extend into the control cavity (a) and is connected with the piston (3); the valve core opening degree indicating rod (4) can move on the end cover (5) in a telescopic mode; the scale cap (15) is arranged at the other end of the valve core opening indicating rod (4) and can display the opening size of the vent hole (23) along with the movement of the valve core opening indicating rod (4).
5. The pressure reducing valve according to claim 4, further comprising a distance sensor (12), wherein the distance sensor (12) is arranged on the end cover (5) through a sensor support (13), and the distance sensor (12) is used for detecting the telescopic distance of the valve core opening indicating rod (4) so as to detect the opening size of the vent hole (23).
6. The pressure reducing valve according to claim 4, wherein a locking screw (14) is arranged on the scale cap (15), and the locking screw (14) is used for positioning the position of the scale cap (15) on the valve core opening degree indicating rod (4); and a sealing ring is arranged between the valve core opening degree indicating rod (4) and the connecting hole of the end cover (5).
7. The pressure reducing valve according to claim 4, wherein the outer surface of the scale cap (15) is provided with scales along the axial direction of the valve core opening degree indicating rod (4), and the scales are 0mm to 5 mm; a convex ring is arranged in the connecting hole of the end cover (5) in a protruding mode, and the top end of the convex ring is used for indicating an initial position (d); when the piston (3) moves towards the low-pressure cavity (b), the valve core opening indicating rod (4) drives the scale cap (15) to move downwards, and the scale pointing to the scale cap (15) by the initial position indication rod (d) is the opening of the vent hole (23).
8. The pressure reducing valve according to claim 2, characterized in that the bottom of the valve core seat (9) is provided with an adjusting bolt (10), and the adjusting bolt (10) is arranged at the bottom of the valve core seat (9) through a locking nut (11); the adjusting bolt (10) can extend into the cavity and is coaxially arranged with the valve core (2); the adjusting bolt (10) adjusts the maximum opening of the valve core (2) according to the length of the adjusting bolt extending into the cavity.
9. A pressure-reducing valve according to claim 3, characterized in that an O-ring seal is provided between the piston (3) and the side wall of the control chamber (a); an O-shaped sealing ring is arranged between the valve core seat (9) and the side wall of the high-pressure cavity (c).
10. The pressure reducing valve according to claim 4, wherein the spool opening degree indicating rod (4) is threadedly connected to the piston (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011156352.8A CN112228603A (en) | 2020-10-26 | 2020-10-26 | Pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011156352.8A CN112228603A (en) | 2020-10-26 | 2020-10-26 | Pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112228603A true CN112228603A (en) | 2021-01-15 |
Family
ID=74109363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011156352.8A Pending CN112228603A (en) | 2020-10-26 | 2020-10-26 | Pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112228603A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943994A (en) * | 2021-03-05 | 2021-06-11 | 星河动力(北京)空间科技有限公司 | Self-feedback adjusting type pressure reducing valve |
| CN113217338A (en) * | 2021-05-24 | 2021-08-06 | 梁启明 | Invariable output mechanism of flow based on air compressor machine |
| CN114776858A (en) * | 2022-04-25 | 2022-07-22 | 一汽解放汽车有限公司 | Gas pressure reducing device and vehicle |
-
2020
- 2020-10-26 CN CN202011156352.8A patent/CN112228603A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943994A (en) * | 2021-03-05 | 2021-06-11 | 星河动力(北京)空间科技有限公司 | Self-feedback adjusting type pressure reducing valve |
| CN113217338A (en) * | 2021-05-24 | 2021-08-06 | 梁启明 | Invariable output mechanism of flow based on air compressor machine |
| CN114776858A (en) * | 2022-04-25 | 2022-07-22 | 一汽解放汽车有限公司 | Gas pressure reducing device and vehicle |
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