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특허 상세정보

Density compensated gas flow meter

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01F-001/68   
미국특허분류(USC) 73/861 ; 73/86101 ; 73/232
출원번호 US-0248689 (1994-05-25)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 45  인용 특허 : 0
초록

A mass flow meter for a gas dispenser includes apparatus and method for determining specific heat ratio of the gas as a function of two pressure measurements in relation to a nozzle and for determining mass flow rate as a function of the specific heat ratio, the two pressure measurements in relation to the nozzle, and a density measurement of the gas.

대표
청구항

Apparatus for measuring specific heat ratio k of a gas, comprising: a sonic nozzle having a flow passage that converges from an entrance to a throat that has a cross-sectional area At and diverges after the throat to an exit; a staging plenum adjacent said entrance that is large enough to have stagnant pressure conditions of a gas that flows through said staging plenum, into said nozzle, and through said throat at sonic choked or velocity; stagnant pressure sensing means connected to said staging plenum for measuring stagnant pressure Po of a gas in said...

이 특허를 인용한 특허 피인용횟수: 45

  1. Cook, John E.; Perry, Paul D.. Automotive evaporative leak detection system. USP2003116640620.
  2. Schulze, Jörg. Compressed hydrogen fueling control valve. USP2015038973624.
  3. Schulze, Jörg. Compressed hydrogen fueling control valve. USP2016039279542.
  4. Paul D. Perry CA; John A. Gurd CA. Connection between an integrated pressure management apparatus and a vapor collection canister. USP2002116474313.
  5. Mayer, Daniel W.. Detecting and reporting the location of a leak in hermetically sealed packaging. USP2009087571636.
  6. Weldon, Craig. Diagnostic apparatus and method for an evaporative control system including an integrated pressure management apparatus. USP2005086931919.
  7. Perry, Paul; Veinotte, Andre. Electrical connections for an integrated pressure management apparatus. USP2005096948481.
  8. Paul D. Perry CA. Fluid flow through an integrated pressure management apparatus. USP2002106470861.
  9. Perry, Paul D.. Fluid flow through an integrated pressure management apparatus. USP2005016840232.
  10. Perry,Paul D.; Cook,John E.. Fuel system with integrated pressure management. USP2006057040301.
  11. Paul D. Perry CA; John E. Cook CA. Fuel system with intergrated pressure management. USP2002116474314.
  12. Inagi, Shusuke; Miyazaki, Natsuru; Uchimura, Chihiro; Yamashita, Akira. Gas charging apparatus and gas charging method. USP2013098534327.
  13. Yakasovic Saavedra,Tom찼s Ivan; Tomasello Rayo,Gonzalo Leonardo. Gas dosing apparatus and a method of dosing pre-set quantities of gas. USP2006097100800.
  14. Veenstra,Michael J.; Mohammed,Majed; Walesky,Daniel J.; Moorhead,Brian C.. Gaseous fuel system for automotive vehicle. USP2008047350604.
  15. Perry, Paul D.. Housing for an integrated pressure management apparatus. USP2003076585230.
  16. Paul D. Perry CA. Housing for integrated pressure management apparatus. USP2002096453942.
  17. Mathison, Steven R.. Hydrogen fueling with integrity checks. USP20180910077998.
  18. Mayer, Daniel W.; Ascheman, Timothy A.. Instrument and method for detecting and reporting the size of leaks in hermetically sealed packaging. USP2009087578170.
  19. Mayer, Daniel W.; Ascheman, Timothy A.. Instrument and method for detecting leaks in hermetically sealed packaging. USP2009127624623.
  20. Mayer,Daniel W.; Ascheman,Timothy A.. Instrument and method for measuring the volume of a hermetically sealed variable volume and pressure conforming container. USP2007087252014.
  21. Ascheman, Timothy A.. Instrument for accurately measuring mass flow rate of a fluid pumped from a hermetically sealed container. USP2010027654131.
  22. Perry, Paul D.. Integrated pressure management apparatus having electronic control circuit. USP2003016502560.
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  29. Harty, Ryan; Mathison, Steve. Method and system for tank refilling. USP2015129222620.
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  33. Mathison, Steve. Method and system for tank refilling using active fueling speed control. USP2016059347612.
  34. Paul D. Perry CA; John E. Cook CA. Method of calibrating an integrated pressure management apparatus. USP2002116484555.
  35. Perry,Paul D.; Cook,John E.. Method of managing pressure in a fuel system. USP2006016983641.
  36. Al-Buaijan, Tareq Nasser. Partial stroke testing system coupled with fuel control valve. USP2014058720267.
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  39. Perry, Paul D.. Sensor arrangement for an integrated pressure management apparatus. USP2003016505514.
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  42. Cook, John E.; Perry, Paul D.. Temperature correction method and subsystem for automotive evaporative leak detection systems. USP2004016672138.
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  45. Kolbenschlag, Stefan. Transducer of an electrical input signal into pneumatic output signals. USP2010097802585.