CN111043349A - Diaphragm type oil pump breather valve - Google Patents
Diaphragm type oil pump breather valve Download PDFInfo
- Publication number
- CN111043349A CN111043349A CN202010008767.4A CN202010008767A CN111043349A CN 111043349 A CN111043349 A CN 111043349A CN 202010008767 A CN202010008767 A CN 202010008767A CN 111043349 A CN111043349 A CN 111043349A
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- China
- Prior art keywords
- diaphragm
- cavity
- channel
- boss
- oil pump
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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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
- F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03256—Fuel tanks characterised by special valves, the mounting thereof
- B60K2015/03276—Valves with membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03256—Fuel tanks characterised by special valves, the mounting thereof
- B60K2015/03296—Pressure regulating valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
- B60K2015/0358—Fuel tanks characterised by venting means the venting is actuated by specific signals or positions of particular parts
- B60K2015/03585—Fuel tanks characterised by venting means the venting is actuated by specific signals or positions of particular parts by gas pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to the field of breather valves, and discloses a diaphragm type oil pump breather valve which comprises a valve body (1), wherein a diaphragm cavity (2) is arranged in the valve body (1), a diaphragm (3) is arranged in the diaphragm cavity (2), the diaphragm (3) divides the diaphragm cavity (2) into a first cavity (201) and a second cavity (202), and the diaphragm (3) is deformed by the pressure difference between the first cavity (201) and the second cavity (202) and is communicated with the first cavity (201) and the second cavity (202). The due function of the breather valve is realized through the deformation of the diaphragm; the structure is simple, the parts are few, and the assembly is easy; the internal structure is simplified, and a released part of space can be used for further adding related functional structures such as pressure regulation, filtration, buffering and the like; dust and impurities are effectively prevented from entering the valve through the labyrinth loop; the flexible seal formed by the diaphragm solves the problem of oil leakage caused by vibration in the driving process.
Description
Technical Field
The invention relates to the field of breather valves, in particular to a diaphragm type oil pump breather valve.
Background
The main function of the breather valve is that the oil tank exchanges air with the outside: when the pressure in the oil tank is too low, air is sucked, and when the pressure in the oil tank is too high, air is exhausted. The most important performance of a breather valve, in addition to the functions of inhalation and exhalation, is the need for sealing against oil leakage. The breather valve with the existing structure mainly adopts a spring steel ball sealing structure. The defects of the existing design are as follows: the leakage is easy to occur due to the vibration of the vehicle in the running process. When in use, the air suction and exhaust are needed, the oil is easy to be polluted by dust and particles, and when impurities are stuck on a sealing line between the steel ball and the valve body, leakage is easy to cause.
At present, the invention patent with the patent name of a breather valve and the patent number of 200910095574.0 discloses a breather valve, which comprises a breathing device, a breathing device and a liquid leakage prevention device arranged below the breathing device, wherein the liquid leakage prevention device comprises a lower valve body with a first channel, a cover plate with a plurality of holes is processed on the inner surface of the upper end of the lower valve body, a detachable lower valve cover is arranged on the inner surface of the lower end of the lower valve body, the lower valve cover is provided with a second channel and is communicated with the first channel on the lower valve body, the side wall of the lower valve cover is provided with a through hole, a movable sealing component is positioned in the second channel, a valve core with a convex shoulder on the outer surface and a third channel inside is superposed on the upper end surface of the lower valve cover, the upper end of the valve core is sleeved on the inner surface of the cover plate, a first elastic component is positioned in the first channel, and one end of the first elastic component is abutted against, the other end of the liquid leakage prevention device is abutted against the lower end face of the cover plate, and when the liquid leakage prevention device is installed on the breather valve, the liquid can be prevented from flowing out of the storage tank after the storage tank is overturned, but when the pressure of the storage tank exceeds a preset value, the liquid can flow out of the storage tank, and safety accidents such as explosion of the storage tank are prevented. Among the above-mentioned technical scheme, breathe out, getter device, including last disk seat, go up the disk seat rigid coupling and have the lateral wall open the last valve body that has the through-hole, go up the valve body upper end and be equipped with the valve gap, the three encloses into a cavity, and a valve clack that the middle part has the through-hole is located this cavity to a recess is processed out at its lower extreme face, a sealing washer is gone into to this recess card, the valve clack superposes on last disk seat, and valve clack and last disk seat are airtight, the up end of valve clack is equipped with the second elastic component, the other end of second elastic component supports and leans on at last valve gap lower extreme face, and a screw rod that the tip was equipped with the end cover passes the valve clack from bottom to top by the through-hole of valve clack, and the screw rod tip is equipped with. The prior art also has the defects of complex structure, easy impurity entry and the like.
Disclosure of Invention
The invention provides a diaphragm type oil pump breather valve aiming at the defects of complex structure, easy impurity entering and the like in the prior art.
In order to solve the technical problem, the invention is solved by the following technical scheme:
diaphragm formula oil pump breather valve, which comprises a valve body, be equipped with the diaphragm cavity in the valve body, install in the diaphragm cavity and have elasticity and deformable diaphragm, the diaphragm is split into first chamber and second chamber with the diaphragm cavity, still be equipped with on the valve body with the first passageway of first chamber intercommunication and with the second passageway of second chamber intercommunication, the diaphragm receives the pressure differential deformation between first chamber and second chamber and communicates first chamber and second chamber, after first chamber and second chamber intercommunication, first passageway and second passageway intercommunication realize the exhaust of valve body and inhale.
Preferably, the wall surface of the diaphragm cavity is provided with a baffle ring and a boss, the baffle ring and the boss are respectively in contact fit with the upper side and the lower side of the diaphragm and clamp the diaphragm in the diaphragm cavity up and down, the first cavity is a cavity with a circular cross section and is positioned above the diaphragm, and the second cavity is a cavity with an annular cross section and is positioned below the diaphragm.
Preferably, the inner diameter of the baffle ring is larger than the outer diameter of the boss, and the baffle ring and the boss are coaxially arranged.
Preferably, the outer diameter of the male ring is gradually increased from top to bottom.
Preferably, the diaphragm is an annular diaphragm, a diaphragm hole is formed in the center of the diaphragm, the first channel is arranged in the boss, an opening, located on the boss, of the first channel is matched and communicated with the diaphragm hole, the diameter of the diaphragm hole is smaller than the inner diameter of the boss, and the first channel is communicated with the first cavity located above the diaphragm through the diaphragm hole.
Preferably, the first channel is coaxial with the valve body, the second channel is parallel to the first channel, the opening end of the second channel facing the diaphragm cavity is located on the lower end face of the second cavity, and the opening end of the second channel facing the diaphragm cavity is located below the opening end of the first channel facing the diaphragm cavity.
Preferably, the valve body comprises an upper cover and a lower seat which are connected with each other, the baffle ring is positioned on the upper cover, the convex ring is positioned on the lower seat, the diaphragm is arranged between the upper cover and the lower seat, and the first channel and the second channel are both arranged on the lower seat.
Preferably, the upper end of the lower seat is provided with a clamping groove, and the upper cover is provided with a clamping ring matched with the clamping groove.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: the due function of the breather valve is realized through the deformation of the diaphragm; the structure is simple, the parts are few, and the assembly is easy; the internal structure is simplified, and a released part of space can be used for further adding related functional structures such as pressure regulation, filtration, buffering and the like; dust and impurities are effectively prevented from entering the valve through the labyrinth loop; the flexible seal formed by the diaphragm solves the problem of oil leakage caused by vibration in the driving process.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure at the time of exhausting.
Fig. 3 is a schematic view of the structure during inhalation.
The names of the parts indicated by the numerical references in the drawings are as follows: 1-valve body, 2-diaphragm cavity, 3-diaphragm, 101-first channel, 102-second channel, 11-upper cover, 111-snap ring, 12-lower seat, 121-neck, 201-first cavity, 202-second cavity, 21-retainer ring, 22-boss, 31-diaphragm hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
Diaphragm formula oil pump breather valve, as shown in the figure, including valve body 1, be equipped with diaphragm cavity 2 in the valve body 1, install in the diaphragm cavity 2 and have elasticity and deformable diaphragm 3, diaphragm 3 is divided into first chamber 201 and second chamber 202 with diaphragm cavity 2, still be equipped with the first passageway 101 with first chamber 201 intercommunication and the second passageway 102 with second chamber 202 intercommunication on the valve body 1, diaphragm 3 receives the pressure differential deformation between first chamber 201 and second chamber 202 and communicates first chamber 201 and second chamber 202, after first chamber 201 and second chamber 202 intercommunication, first passageway 101 and second passageway 102 intercommunication realize the exhaust and the breathing in of valve body 1.
The wall surface of the diaphragm cavity 2 is provided with a baffle ring 21 and a boss 22, the baffle ring 21 and the boss 22 are respectively in contact fit with the upper side and the lower side of the diaphragm 3 and clamp the diaphragm 3 in the diaphragm cavity 2 up and down, when the pressure difference between the first cavity 201 and the second cavity 202 is not enough to deform the diaphragm 3, the upper surface of the diaphragm 3 is matched with the baffle ring 21, and the lower surface of the diaphragm 3 is matched with the boss 22, so that the diaphragm cavity 2 is divided into the first cavity 201 and the second cavity 202 which are arranged up and down by the diaphragm 3, the first cavity 201 is a cavity with a circular cross section and is positioned above the diaphragm 3, the second cavity 202 is a cavity with a circular cross section and is positioned below the diaphragm 3, and the second cavity 202 surrounds the boss 22.
The inner diameter of the retainer ring 21 is larger than the outer diameter of the boss 22, and the retainer ring 21 and the boss 22 are coaxially arranged.
The outer diameter of the male ring 22 is gradually increased from the top to the bottom.
Example 2
The same as embodiment 1, except that the membrane 3 is an annular membrane, the center of the membrane 3 is provided with a membrane hole 31, the first channel 101 is arranged in the boss 22, the opening of the first channel 101 on the boss 22 is matched and communicated with the membrane hole 31, the diameter of the membrane hole 31 is smaller than the inner diameter of the boss 22, and the first channel 101 is communicated with the first cavity 201 above the membrane 3 through the membrane hole 31.
The first channel 201 is arranged coaxially with the valve body 1, the second channel 202 is arranged parallel to the first channel 201, the open end of the second channel 202 facing into the diaphragm cavity 2 is located on the lower end face of the second cavity 202, and the open end of the second channel 202 facing into the diaphragm cavity 2 is located below the horizontal plane of the open end of the first channel 201 facing into the diaphragm cavity 2.
The first channel 201 is communicated with the inside of the mailbox, the second channel 202 is communicated with the outside atmosphere, when the pressure in the oil tank gradually rises, the diaphragm 3 is firstly attached to the baffle ring 21 and the boss 22, the first cavity 201 is in a sealed state, the pressure of the second cavity 202 gradually rises, the upper plane of the diaphragm 3 is high pressure at the moment, the lower plane pressure of the diaphragm 3 is atmospheric pressure, due to downward force generated by the difference between the upper pressure and the lower pressure, when the difference reaches a certain value, the diaphragm 3 elastically deforms, the edge part of the diaphragm 3 bends downwards, the second cavity 202 is opened and communicated with the first cavity 201, and air is exhausted through the first channel 101, the diaphragm hole 31, the first cavity 201, the second cavity 202 and the second channel 102, so that the exhaust function is realized.
When the pressure in the oil tank is reduced, the diaphragm 3 is attached to the baffle ring 21 and the boss 22, the first cavity 201 is in a sealed state, the pressure in the first cavity 201 is gradually reduced, the upper plane of the diaphragm 3 is negative pressure at the moment, the lower plane pressure of the diaphragm 3 is atmospheric pressure, upward force is generated due to the difference between the upper pressure and the lower pressure, when the difference reaches a certain value, the diaphragm 3 elastically deforms, the middle part of the diaphragm 3 bends upwards, air enters the oil tank through the second channel 102, the second cavity 202 and the first channel 101 to achieve the air suction function, the diaphragm 3 is separated from the boss 22 at the moment, and therefore the first cavity 201 is communicated with the second cavity 202 through the diaphragm hole 31.
The valve body and the diaphragm are matched to form a bent labyrinth-like structure, so that dust and impurities are blocked by the boss 22 during air suction, and are not easy to enter the valve to cause pollution. The vibration is generated in the driving process, and the diaphragm 3 is made of composite rubber, so that the high elasticity is realized, the good flexible sealing is realized between the diaphragm and the valve body, and the leakage caused by the vibration is not easy to generate. The diaphragm 3 is made of composite rubber material, has good elasticity, high oil resistance and water resistance, is not easy to age and decompose, and has high durability.
Example 3
The same as embodiment 1, except that the valve body 1 includes an upper cover 11 and a lower seat 12 connected to each other, a stopper ring 21 is provided on the upper cover 11, a protruding ring 22 is provided on the lower seat 12, the diaphragm 3 is mounted between the upper cover 11 and the lower seat 12, and a first passage 101 and a second passage 102 are provided on the lower seat 12.
The upper end opening of lower seat 12, the upper end of lower seat 12 is equipped with draw-in groove 121, the upper end opening of upper cover 11, and during upper cover 11 inserted the opening of lower seat 12, be equipped with on the upper cover 11 with draw-in groove 121 complex snap ring 111.
The stop ring 21 is at the lower edge of the upper cover 11.
The upper cover 11 is the reinforcing nylon material, and lower 12 is the high strength aluminum alloy material, and both sizes are interference fit, and during the installation with the press with the upper cover 11 impress in lower 12, the upper cover 11 can fasten in lower 12 and sealed after the extrusion deformation.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (7)
1. Piece formula oil pump breather valve, including valve body (1), its characterized in that: a diaphragm cavity (2) is arranged in the valve body (1), an elastic and deformable diaphragm (3) is arranged in the diaphragm cavity (2), the diaphragm (3) divides the diaphragm cavity (2) into a first cavity (201) and a second cavity (202), a first channel (101) communicated with the first cavity (201) and a second channel (102) communicated with the second cavity (202) are further arranged on the valve body (1), and the diaphragm (3) deforms under the pressure difference between the first cavity (201) and the second cavity (202) and is communicated with the first cavity (201) and the second cavity (202); the wall surface of the diaphragm cavity (2) is provided with a baffle ring (21) and a boss (22), the baffle ring (21) and the boss (22) are respectively in contact fit with the upper side and the lower side of the diaphragm (3) and clamp the diaphragm (3) in the diaphragm cavity (2) up and down, the first cavity (201) is a cavity with a circular cross section and is positioned above the diaphragm (3), and the second cavity (202) is a cavity with an annular cross section and is positioned below the diaphragm (3).
2. The diaphragm oil pump breather valve of claim 1, wherein: the inner diameter of the retainer ring (21) is larger than the outer diameter of the boss (22), and the retainer ring (21) and the boss (22) are coaxially arranged.
3. The diaphragm oil pump breather valve of claim 1, wherein: the outer diameter of the convex ring (22) is gradually increased from top to bottom.
4. The diaphragm oil pump breather valve of claim 2 or 3, wherein: diaphragm (3) is an annular diaphragm, and the center of diaphragm (3) is equipped with diaphragm orifice (31), and first passageway (101) set up in boss (22), and opening and diaphragm orifice (31) cooperation and intercommunication that first passageway (101) are located boss (22), and the diameter of diaphragm orifice (31) is less than the internal diameter of boss (22), and first passageway (101) are through diaphragm orifice (31) and first chamber (201) intercommunication that is located diaphragm (3) top.
5. The diaphragm oil pump breather valve of claim 1, wherein: the first channel (201) and the valve body (1) are coaxially arranged, the second channel (202) and the first channel (201) are arranged in parallel, the opening end, facing the diaphragm cavity (2), of the second channel (202) is located on the lower end face of the second cavity (202), and the opening end, facing the diaphragm cavity (2), of the second channel (202) is located below the opening end, facing the diaphragm cavity (2), of the first channel (201).
6. The diaphragm oil pump breather valve of claim 1, wherein: the valve body (1) comprises an upper cover (11) and a lower seat (12) which are connected with each other, a baffle ring (21) is positioned on the upper cover (11), a convex ring (22) is positioned on the lower seat (12), and the diaphragm (3) is arranged between the upper cover (11) and the lower seat (12).
7. The diaphragm oil pump breather valve of claim 6, wherein: the upper end of the lower seat (12) is provided with a clamping groove (121), and the upper cover (11) is provided with a clamping ring (111) matched with the clamping groove (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010008767.4A CN111043349B (en) | 2020-01-06 | 2020-01-06 | Diaphragm type oil pump breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010008767.4A CN111043349B (en) | 2020-01-06 | 2020-01-06 | Diaphragm type oil pump breather valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111043349A true CN111043349A (en) | 2020-04-21 |
| CN111043349B CN111043349B (en) | 2021-10-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010008767.4A Active CN111043349B (en) | 2020-01-06 | 2020-01-06 | Diaphragm type oil pump breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111043349B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU111974A1 (en) * | 1957-04-22 | 1957-11-30 | В.И. Белов | Diaphragm valve |
| US6866056B1 (en) * | 2004-05-14 | 2005-03-15 | William A. Scott | Fuel tank venting system |
| US20070163656A1 (en) * | 2004-06-22 | 2007-07-19 | Mijers Jan W M | Check valve |
| CN101475079A (en) * | 2009-01-21 | 2009-07-08 | 陈岳荣 | Respiratory valve |
| CN102483171A (en) * | 2009-06-24 | 2012-05-30 | 约阿希姆·克恩 | Membrane valve |
| CN204083391U (en) * | 2014-08-26 | 2015-01-07 | 宁波亚德客自动化工业有限公司 | A kind of one-way valve structures |
| CN205612894U (en) * | 2016-04-22 | 2016-10-05 | 何长江 | Can wash diaphragm formula breather valve |
| CN206130226U (en) * | 2016-10-13 | 2017-04-26 | 微宏动力系统（湖州）有限公司 | Breather valve |
| CN107824233A (en) * | 2012-12-21 | 2018-03-23 | 精密公司 | Low elasticity film for microfluidic applications |
| CN109253290A (en) * | 2017-07-14 | 2019-01-22 | 福特环球技术公司 | The cap assembly of pressure retaining valve and integrated pressure retaining valve |
| CN109780280A (en) * | 2017-11-12 | 2019-05-21 | 北京航天长峰股份有限公司 | A kind of plain type one-way breather valve piece |
-
2020
- 2020-01-06 CN CN202010008767.4A patent/CN111043349B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU111974A1 (en) * | 1957-04-22 | 1957-11-30 | В.И. Белов | Diaphragm valve |
| US6866056B1 (en) * | 2004-05-14 | 2005-03-15 | William A. Scott | Fuel tank venting system |
| US20070163656A1 (en) * | 2004-06-22 | 2007-07-19 | Mijers Jan W M | Check valve |
| CN101475079A (en) * | 2009-01-21 | 2009-07-08 | 陈岳荣 | Respiratory valve |
| CN102483171A (en) * | 2009-06-24 | 2012-05-30 | 约阿希姆·克恩 | Membrane valve |
| CN107824233A (en) * | 2012-12-21 | 2018-03-23 | 精密公司 | Low elasticity film for microfluidic applications |
| CN204083391U (en) * | 2014-08-26 | 2015-01-07 | 宁波亚德客自动化工业有限公司 | A kind of one-way valve structures |
| CN205612894U (en) * | 2016-04-22 | 2016-10-05 | 何长江 | Can wash diaphragm formula breather valve |
| CN206130226U (en) * | 2016-10-13 | 2017-04-26 | 微宏动力系统（湖州）有限公司 | Breather valve |
| CN109253290A (en) * | 2017-07-14 | 2019-01-22 | 福特环球技术公司 | The cap assembly of pressure retaining valve and integrated pressure retaining valve |
| CN109780280A (en) * | 2017-11-12 | 2019-05-21 | 北京航天长峰股份有限公司 | A kind of plain type one-way breather valve piece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111043349B (en) | 2021-10-22 |
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