WO2005038320A3 - Fail safe pneumatically actuated valve - Google Patents

Fail safe pneumatically actuated valve Download PDF

Info

Publication number
WO2005038320A3
WO2005038320A3 PCT/US2004/034453 US2004034453W WO2005038320A3 WO 2005038320 A3 WO2005038320 A3 WO 2005038320A3 US 2004034453 W US2004034453 W US 2004034453W WO 2005038320 A3 WO2005038320 A3 WO 2005038320A3
Authority
WO
WIPO (PCT)
Prior art keywords
valve
disclosed
conductance
fail
safe
Prior art date
Application number
PCT/US2004/034453
Other languages
French (fr)
Other versions
WO2005038320A2 (en
Inventor
Ofer Sneh
Original Assignee
Sundew Technologies Llc
Ofer Sneh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sundew Technologies Llc, Ofer Sneh filed Critical Sundew Technologies Llc
Priority to DE200460026334 priority Critical patent/DE602004026334D1/en
Priority to AT04795595T priority patent/ATE462910T1/en
Priority to US10/575,443 priority patent/US7744060B2/en
Priority to JP2006535423A priority patent/JP4926711B2/en
Priority to EP04795595A priority patent/EP1676067B1/en
Publication of WO2005038320A2 publication Critical patent/WO2005038320A2/en
Publication of WO2005038320A3 publication Critical patent/WO2005038320A3/en
Priority to US12/783,416 priority patent/US8083205B2/en

Links

Classifications

    • 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
    • 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
    • F16K31/003—Actuating devices; Operating means; Releasing devices operated without a stable intermediate position, e.g. with snap action
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87193—Pilot-actuated
    • Y10T137/87209—Electric

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Driven Valves (AREA)
  • Diaphragms And Bellows (AREA)
  • Lift Valve (AREA)
  • Earth Drilling (AREA)
  • Emergency Lowering Means (AREA)

Abstract

Apparatus and method for fail-safe high-speed-pneumatic valve is disclosed. Fail-safe dependability is provided by a spring-loaded normally-closed pneumatic actuator. When the spring-loaded actuator is pressurized, the normally closed mechanism is actuated to the valve active position. Concurrently, the pressure is directly applied to deflect a diaphragm or a bellow-assembly back to sealing position. Ultra high purity embodiments with standard dome shaped diaphragms are disclosed. Additional high conductance diaphragms and bellows embodiments are employed for higher conductance valves. Novel flow path layouts are disclosed. The valves are applicable for fast gas and fluid switching and are particularly suitable for high productivity Atomic Layer Deposition (ALD) applications. Additional embodiments cover improved diaphragm and seal reliability, externally adjustable valve conductance, improved valve safety and high temperature valve seals.
PCT/US2004/034453 2003-10-17 2004-10-18 Fail safe pneumatically actuated valve WO2005038320A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE200460026334 DE602004026334D1 (en) 2003-10-17 2004-10-18 FALL-SAFE, PNEUMATICALLY ACTUATED VALVE
AT04795595T ATE462910T1 (en) 2003-10-17 2004-10-18 FAIL-SAFE PNEUMATICALLY ACTUATED VALVE
US10/575,443 US7744060B2 (en) 2003-10-17 2004-10-18 Fail-safe pneumatically actuated valve with fast time response and adjustable conductance
JP2006535423A JP4926711B2 (en) 2003-10-17 2004-10-18 Fail-safe pneumatic valve with fast response and adjustable conductivity
EP04795595A EP1676067B1 (en) 2003-10-17 2004-10-18 Fail safe pneumatically actuated valve
US12/783,416 US8083205B2 (en) 2003-10-17 2010-05-19 Fail safe pneumatically actuated valve with fast time response and adjustable conductance

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51223603P 2003-10-17 2003-10-17
US60/512,236 2003-10-17

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US10/575,443 A-371-Of-International US7744060B2 (en) 2003-10-17 2004-10-18 Fail-safe pneumatically actuated valve with fast time response and adjustable conductance
US12/783,416 Division US8083205B2 (en) 2003-10-17 2010-05-19 Fail safe pneumatically actuated valve with fast time response and adjustable conductance

Publications (2)

Publication Number Publication Date
WO2005038320A2 WO2005038320A2 (en) 2005-04-28
WO2005038320A3 true WO2005038320A3 (en) 2005-07-07

Family

ID=34465331

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/034453 WO2005038320A2 (en) 2003-10-17 2004-10-18 Fail safe pneumatically actuated valve

Country Status (8)

Country Link
US (2) US7744060B2 (en)
EP (1) EP1676067B1 (en)
JP (1) JP4926711B2 (en)
CN (1) CN1894526A (en)
AT (1) ATE462910T1 (en)
DE (1) DE602004026334D1 (en)
TW (1) TWI373583B (en)
WO (1) WO2005038320A2 (en)

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Also Published As

Publication number Publication date
US8083205B2 (en) 2011-12-27
EP1676067A2 (en) 2006-07-05
EP1676067B1 (en) 2010-03-31
TWI373583B (en) 2012-10-01
DE602004026334D1 (en) 2010-05-12
TW200517613A (en) 2005-06-01
CN1894526A (en) 2007-01-10
JP2007509291A (en) 2007-04-12
US20100224804A1 (en) 2010-09-09
WO2005038320A2 (en) 2005-04-28
US7744060B2 (en) 2010-06-29
JP4926711B2 (en) 2012-05-09
US20070187634A1 (en) 2007-08-16
ATE462910T1 (en) 2010-04-15

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