Low energy high pressure miniature screw valve

Fischer, Gary J; Spletzer, Barry L

Title: Low energy high pressure miniature screw valve

Full Record
Other Related Research

Abstract

A low energy high pressure screw valve having a valve body having an upper portion and a lower portion, said lower portion of said valve body defining an inlet flow passage and an outlet flow passage traversing said valve body to a valve seat, said upper portion of said valve body defining a cavity at said valve seat, a diaphragm restricting flow between said upper portion of said valve body and said lower portion, said diaphragm capable of engaging said valve seat to restrict fluid communication between said inlet passage and said outlet passage, a plunger within said cavity supporting said diaphragm, said plunger being capable of engaging said diaphragm with said valve seat at said inlet and outlet fluid passages, said plunger being in point contact with a drive screw having threads engaged with opposing threads within said upper portion of said valve body such engagement allowing motion of said drive screw within said valve body.

Inventors:

Fischer, Gary J ^[1]; Spletzer, Barry L ^[2]

Sandia Park, NM
Albuquerque, NM

Issue Date:: 2006-12-12

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 907973

Patent Number(s):: 7147205

Application Number:: 10/870,755

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES

Show more

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES
F16K2099/0069 - {Bistable microvalves}
F16K31/04 - using a motor
F16K7/16 - the diaphragm being mechanically actuated, e.g. by screw-spindle or cam
F16K99/0001 - {Microvalves
F16K99/0015 - {Diaphragm or membrane valves}
F16K99/0034 - {Operating means specially adapted for microvalves}

Show less

DOE Contract Number:: AC04-94AL85000

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Fischer, Gary J, and Spletzer, Barry L. Low energy high pressure miniature screw valve.  United States: N. p., 2006. 
        Web.

Copy to clipboard


                    Fischer, Gary J, & Spletzer, Barry L. Low energy high pressure miniature screw valve.  United States.

Copy to clipboard


                    Fischer, Gary J, and Spletzer, Barry L. Tue .  
        "Low energy high pressure miniature screw valve".  United States.  https://www.osti.gov/servlets/purl/907973.

Copy to clipboard


                    
@article{osti_907973,

  title        = {Low energy high pressure miniature screw valve},

  author       = {Fischer, Gary J and Spletzer, Barry L},

  abstractNote = {A low energy high pressure screw valve having a valve body having an upper portion and a lower portion, said lower portion of said valve body defining an inlet flow passage and an outlet flow passage traversing said valve body to a valve seat, said upper portion of said valve body defining a cavity at said valve seat, a diaphragm restricting flow between said upper portion of said valve body and said lower portion, said diaphragm capable of engaging said valve seat to restrict fluid communication between said inlet passage and said outlet passage, a plunger within said cavity supporting said diaphragm, said plunger being capable of engaging said diaphragm with said valve seat at said inlet and outlet fluid passages, said plunger being in point contact with a drive screw having threads engaged with opposing threads within said upper portion of said valve body such engagement allowing motion of said drive screw within said valve body.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2006},

  month        = {12}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Energy storage and recovery utilizing low-pressure thermal conditioning for heat exchange with high-pressure gas

Patent McBride, Troy O.; Bollinger, Benjamin R.

In various embodiments, gas is compressed to store energy and/or expanded to recover energy to or from high pressures, and the gas is exchanges heat with a heat-exchange fluid that is thermally conditioned at low pressures.
Full Text Available
Valve assembly for use with high temperature and high pressure fluids

Patent De Feo, Angelo [Totowa, NY]

The valve assembly for use with high temperature and high pressure fluids has inner and outer spaced shells and a valve actuator support of inner and outer spaced members which are connected at their end portions to the inner and outer shells, respectively, to extend substantially normal to the longitudinal axis of the inner shell. A layer of resilient heat insulating material covers the outer surfaces of the inner shell and the inner actuator support member and is of a thickness to only occupy part of the spaces between the inner and outer shells and inner and outer actuator supportmore » « less
Full Text Available
Miniature electrically operated diaphragm valve

Patent Adkins, Douglas R [Albuquerque, NM]; Spletzer, Barry L [Albuquerque, NM]; Wong, Chungnin C [Albuquerque, NM]; ...

The present invention provides a miniature electrically operated valve that can stand off significant pressures, that can be inexpensively produced, and that can be made to operate without continuous electrical power. A valve according to the present invention comprises a housing and a beam mounted with the housing. A diaphragm mounted with the housing forms a sealed fluid volume. An electromagnetic energy source, such as an electromagnetic coil, mounts with the housing and when energized urges the beam in one direction. The beam can be urged in the opposing direction by passive means or by reversing the polarity of themore » « less
Full Text Available
Miniature piezo electric vacuum inlet valve

Patent Keville, Robert F [Valley Springs, CA]; Dietrich, Daniel D [Livermore, CA]

A miniature piezo electric vacuum inlet valve having a fast pulse rate and is battery operated with variable flow capability. The low power (<1.6 watts), high pulse rate (<2 milliseconds), variable flow inlet valve is utilized for mass spectroscopic applications or other applications where pulsed or continuous flow conditions are needed. The inlet valve also has a very minimal dead volume of less than 0.01 std/cc. The valve can utilize, for example, a 12 Vdc input/750 Vdc, 3 mA output power supply compared to conventional piezo electric valves which require preloading of the crystal drive mechanism and 120 Vac, thusmore » « less
Full Text Available
Low-cost, high-strength Fe--Ni--Cr alloys for high temperature exhaust valve application

Patent Muralidharan, Govindarajan

An Fe--Ni--Cr alloy is composed essentially of, in terms of wt. %: 2.4 to 3.7 Al, up to 1.05 Co, 14.8 to 15.9 Cr, 25 to 36 Fe, up to 1.2 Hf, up to 4 Mn, up to 0.6 Mo, up to 2.2 Nb, up to 1.05 Ta, 1.9 to 3.6 Ti, up to 0.08 W, up to 0.03 Zr, 0.18 to 0.27 C, up to 0.0015 N, balance Ni, wherein, in terms of atomic percent: 8.5.ltoreq.Al+Ti+Zr+Hf+Ta.ltoreq.11.5, 0.53.ltoreq.Al/(Al+Ti+Zr+Hf+Ta).ltoreq.0.65, and 0.16.ltoreq.Cr/(Fe+Ni+Cr+Mn).ltoreq.0.21, the alloy being essentially free of Cu, Si, and V.
Full Text Available

Similar Records