RELIEF DEVICE FOR OIL CIRCUIT OF ENGINE

Number of patents in Portfolio can not be more than 2000

United States of America Patent

SERIAL NO

14750910

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A relief device including: an oil pump; an upstream flow passage provided from a discharge section side of the oil pump to an engine; an oil-pressure relief valve relieving oil by a valve body moving due to oil pressure; and a temperature-sensitive relief valve B relieving oil by detecting an oil temperature and opening and closing steplessly. The oil-pressure relief valve and the temperature-sensitive relief valve are disposed in parallel in the upstream flow passage. A portion of the pump housing of the oil pump is formed in an integrated fashion with a casing of an oil circulation mechanism.

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Patent Owner(s)

Patent OwnerAddress
YAMADA MANUFACTURING CO LTD2757 HIROSAWA-CHO 1-CHOME KIRYU-SHI GUNMA 376-8585

International Classification(s)

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  • 2015 Application Filing Year
  • F01M Class
  • 319 Applications Filed
  • 261 Patents Issued To-Date
  • 81.82 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201520162017201820192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
KATO, Yuya Kiryu-shi, JP 56 182
MIYAJIMA, Junichi Kiryu-shi, JP 29 57
WATANABE, Takatoshi Kiryu-shi, JP 47 143

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Patent Citation Ranking

  • 3 Citation Count
  • F01M Class
  • 16.39 % this patent is cited more than
  • 10 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges20965101 - 1011 - 2021 - 3005101520253035404550556065707580859095100105

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