THROTTLE VALVE

Number of patents in Portfolio can not be more than 2000

United States of America Patent

SERIAL NO

14970591

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A housing (22) is provided with a valve body mounting hole 22A one end of which opens to an outside thereof and that extends in the axis line (O1-O1) direction. A valve body (25) having an oil chamber (26) formed inside thereof is mounted in the valve body mounting hole (22A). The valve body (25) is provided with throttle holes (27) that establish communication between an inflow part (23) and the oil chamber (26) of the housing (22) and restrict the oil flowing into the oil chamber (26), and communicating holes (28) that establish communication between an outflow part (24) and the oil chamber (26) of the housing (22). When a total oil passage cross-sectional area of the throttle holes (27) is indicated at A, and a minimum oil passage cross-sectional area of the oil chamber (26) is indicated at B, a relation of A

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Patent Owner(s)

Patent OwnerAddress
HITACHI CONSTRUCTION MACHINERY CO LTD16-1 HIGASHIUENO 2-CHOME TAITO-KU TOKYO 110-0015

International Classification(s)

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  • 2015 Application Filing Year
  • F15B Class
  • 624 Applications Filed
  • 480 Patents Issued To-Date
  • 76.93 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201520162017201820192020202120220255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
ITO, Hideaki Katori-shi, JP 129 1073
KUMAGAI, Kento Inashiki-gun, JP 18 31

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Patent Citation Ranking

  • 0 Citation Count
  • F15B Class
  • 0 % this patent is cited more than
  • 9 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges5712751201 - 1011 - 2021 - 3031 - 400102030405060708090100110120130140

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