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Title: Check valve with pilot tube pressure sensing

Abstract

A check valve's housing has a valve disposed therein to open or close a flow path from the housing's inlet to its outlet based on a difference between pressures at the inlet and outlet. The valve includes a bellows, a poppet, and a spring. The poppet includes a hollow structure extending through the poppet's plate and terminating in a first open end disposed within the bellows, an annular flange between the second face of the poppet's plate and the housing's outlet, and an open-ended tube extending from the annular flange into the housing's outlet. The spring, disposed within the hollow tubular structure, positions the annular flange to seal the outlet when the pressure difference is less than a predetermined amount and compresses when the difference exceeds the predetermined amount wherein the annular flange is unsealed from the housing's outlet to open the flow path.

Inventors:
; ;
Issue Date:
Research Org.:
NASA, Washington, D.C. (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568241
Patent Number(s):
10268213
Application Number:
15/789,736
Assignee:
The United States of America as represented by the Administrator of NASA (Washington, DC)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES
G - PHYSICS G05 - CONTROLLING G05D - SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
Resource Type:
Patent
Resource Relation:
Patent File Date: 10/20/2017
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Addona, Brad M., Richard, James A., and Joye, Richard J. Check valve with pilot tube pressure sensing. United States: N. p., 2019. Web.
Addona, Brad M., Richard, James A., & Joye, Richard J. Check valve with pilot tube pressure sensing. United States.
Addona, Brad M., Richard, James A., and Joye, Richard J. Tue . "Check valve with pilot tube pressure sensing". United States. https://www.osti.gov/servlets/purl/1568241.
@article{osti_1568241,
title = {Check valve with pilot tube pressure sensing},
author = {Addona, Brad M. and Richard, James A. and Joye, Richard J.},
abstractNote = {A check valve's housing has a valve disposed therein to open or close a flow path from the housing's inlet to its outlet based on a difference between pressures at the inlet and outlet. The valve includes a bellows, a poppet, and a spring. The poppet includes a hollow structure extending through the poppet's plate and terminating in a first open end disposed within the bellows, an annular flange between the second face of the poppet's plate and the housing's outlet, and an open-ended tube extending from the annular flange into the housing's outlet. The spring, disposed within the hollow tubular structure, positions the annular flange to seal the outlet when the pressure difference is less than a predetermined amount and compresses when the difference exceeds the predetermined amount wherein the annular flange is unsealed from the housing's outlet to open the flow path.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {4}
}

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Works referenced in this record:

Fuel pressure regulator
patent, November 2002


Check valve
patent, August 1988


Vacuum-enclosed integral cryogenic valve
patent, January 1997


Absolute pressure regulator valve assembly
patent, April 2000


Emergency pressure relief valve with enhanced reset
patent, December 2005