Multi-stage pressure regulator and method for fluid pressure regulation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16K-031/12
G05D-016/10
출원번호
US-0835528
(2013-03-15)
등록번호
US-9310812
(2016-04-12)
발명자
/ 주소
Costle, Carey
Hollars, Anthony S.
출원인 / 주소
Illinois Tool Works Inc.
대리인 / 주소
Regelman, Dale F.
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
A multi-stage fluid pressure regulator, including a first stage valve arranged to open and close a fluid flow path to control flow of fluid through the valve, a first stage piston arranged for movement to open and close the first stage valve, the piston having an inner side and an outer side, a gas
A multi-stage fluid pressure regulator, including a first stage valve arranged to open and close a fluid flow path to control flow of fluid through the valve, a first stage piston arranged for movement to open and close the first stage valve, the piston having an inner side and an outer side, a gas delivery conduit having a proximal end attached to the first stage piston and a distal end extending away from the first stage piston, the gas delivery conduit having a passage in fluid communication with the inner side of the first stage piston, and a second stage valve in fluid communication with the gas delivery conduit, the second stage valve including a second valve chamber into which the distal end of the gas delivery conduit is positioned.
대표청구항▼
1. A multi-stage fluid pressure regulator comprising: a first stage valve comprising a moveable first stage piston comprising a central axis and arranged to open and close a fluid flow path to control flow of fluid through the valve, and a gas delivery conduit formed as a single, unitary part with s
1. A multi-stage fluid pressure regulator comprising: a first stage valve comprising a moveable first stage piston comprising a central axis and arranged to open and close a fluid flow path to control flow of fluid through the valve, and a gas delivery conduit formed as a single, unitary part with said first stage piston, wherein said gas delivery conduit extends along said central axis such that a distal end of said gas delivery conduit is in direct fluid communication with a second valve chamber of a second stage valve;a second stage valve in fluid communication with the gas delivery conduit, the second stage valve including said second valve chamber into which the distal end of the gas delivery conduit is positioned;a body, wherein said first stage valve is disposed within said body, and wherein said body is formed to include a vent extending therethrough;a first piston spring disposed within said body and urging said moveable first stage piston downwardly;a piston seal arranged to engage with a stepped surface of said moveable first stage piston and with a tapered surface of said piston bore to control the flow of gas from inside said moveable first stage piston;when said moveable first stage piston is moved downwardly by said piston spring, fluid flow from inside said moveable first stage piston is stopped by said piston seal, although fluid flow from said first valve chamber is permitted;when said moveable first stage piston is moved upwardly, fluid flow from inside said moveable first stage piston is permitted, but fluid flow from said first valve chamber is stopped. 2. The regulator of claim 1, further comprising a second stage piston arranged for movement to open and close the second stage valve. 3. The regulator of claim 1, wherein the gas delivery conduit is moveable into and out of the second valve chamber. 4. The regulator of claim 3, further comprising a seal that engages the gas delivery conduit and allows for sliding movement of the gas delivery conduit relative to the second valve chamber. 5. The regulator of claim 1, further comprising a second stage piston arranged for movement to open and close the second stage valve, the piston having an inner side and an outer side. 6. The regulator of claim 5, further comprising a second piston spring arranged to open the second stage valve. 7. The regulator of claim 6, wherein a pressure of gas released from the first and second stage valves, respectively, urges the first and second pistons to move to close the first and second stage valves. 8. The regulator of claim 7, wherein the first and second pistons are housed respectively in a first and a second regulator body. 9. A fluid pressure regulator comprising: a first stage valve comprising a moveable first stage piston comprising a central axis and arranged to open and close a fluid flow path to control flow of fluid through the valve, and a gas delivery conduit formed as a single, unitary part with said first stage piston, wherein said gas delivery conduit extends along said central axis such that a distal end of said gas delivery conduit is in direct fluid communication with a second valve chamber of a second stage valve, wherein the gas delivery conduit is moveable into and out of the second valve chamber;a body, wherein said first stage valve is disposed within said body, and wherein said body is formed to include a vent extending therethrough;a piston spring disposed within said body and urging said moveable first stage piston downwardly;a piston seal arranged to engage with a stepped surface of said moveable first stage piston and with a tapered surface of said piston bore to control the flow of gas from inside said moveable first stage piston;when said moveable first stage piston is moved downwardly by said piston spring, fluid flow from inside said moveable first stage piston is stopped by said piston seal, although fluid flow from said first valve chamber is permitted;when said moveable first stage piston is moved upwardly, fluid flow from inside said moveable first stage piston is permitted, but fluid flow from said first valve chamber is stopped. 10. The regulator of claim 9, wherein the first stage piston includes a first plunger arranged to contact a portion of the first stage valve to open and close the first stage valve. 11. The regulator of claim 9, wherein the first stage valve includes a valve ball and seal. 12. The regulator of claim 9, further comprising a second stage valve including a second valve chamber. 13. The regulator of claim 12, further comprising a seal that engages the gas delivery conduit and allows for sliding movement of the gas delivery conduit relative to the second valve chamber. 14. A multi-stage fluid pressure regulator comprising: a first stage body including a first stage piston bore and defining a first stage valve chamber;a first stage valve comprising a moveable first stage piston comprising a central axis and arranged to open and close a fluid flow path to control flow of fluid through the valve, and a gas delivery conduit formed as a single, unitary part with said first stage piston, wherein said gas delivery conduit extends along said central axis;a second stage body including a second stage piston bore and defining a second stage valve chamber, the second stage body coupled to the first stage body such that the second stage valve chamber is in fluid communication with the first stage valve;a second stage valve arranged to open and close a fluid flow path to control flow of fluid from the second stage valve chamber; anda second stage piston arranged for movement in the second stage piston bore to open and close the second stage valve, the second stage piston having an inner side and an outer side,wherein the first and second stage bodies are moveable relative to each other to adjust a pressure of fluid provided from the first stage valve to the second stage valve chamber;wherein said first stage valve is disposed within said first stage body, and wherein said first stage body is formed to include a vent extending therethrough;a piston spring disposed within said body and urging said moveable first stage piston downwardly;a piston seal arranged to engage with a stepped surface of said moveable first stage piston and with a tapered surface of said piston bore to control the flow of gas from inside said moveable first stage piston;when said moveable first stage piston is moved downwardly by said piston spring, fluid flow from inside said moveable first stage piston is stopped by said piston seal, although fluid flow from said first valve chamber is permitted;when said moveable first stage piston is moved upwardly, fluid flow from inside said moveable first stage piston is permitted, but fluid flow from said first valve chamber is stopped. 15. The regulator of claim 14, wherein the first and second stage bodies are threadedly coupled together such that rotation of the second stage body relative to the first stage body moves the first and second stage bodies toward or away from each other and adjusts a pressure of fluid provided from the first stage valve. 16. The regulator of claim 15, further comprising a gas delivery conduit having a proximal end attached to the first stage piston and a distal end extending away from the first stage piston, the gas delivery conduit having a passage in fluid communication with the first stage valve. 17. The regulator of claim 16, wherein the gas delivery conduit is arranged along a central vertical axis of the first stage piston. 18. The regulator of claim 17, wherein the gas delivery conduit is moveable into and out of the second valve chamber.
Lhomer Gerard (Le Mesnil Saint Denis FRX) Theurant Gilbert (Vitry sur Seine FRX), Gas dispensing control assembly and gas bottle equipped with such an assembly.
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