Fuel supply pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11713741
APP PUB NO 20220381213A1
SERIAL NO

17775778

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided is a fuel supply pump capable of improving welding quality while securing a function of a valve body. A fuel supply pump of the present invention includes a regulating member (discharge valve stopper 84) that guides movement of a valve body (discharge valve 82), a main body portion (body 1) provided with a valve chamber (discharge valve chamber 1d) that houses the regulating member, a sealing member (plug 85) that seals the valve chamber, and a welded portion (welded portion 86) that fixes the sealing member to the main body portion. An annular space portion (annular space portion 60) along an outer periphery of the regulating member is formed between the welded portion and the regulating member. The regulating member includes a positioning portion (fitting portion 84a) for positioning with respect to the main body portion on a side opposite to the sealing member, and a gap forming portion (gap forming portion 84c) forming an annular gap (annular gap 63) between the gap forming portion and the main body portion, and the annular gap allows a space on a side of the positioning portion in the valve chamber and the annular space portion to communicate with each other.

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First Claim

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Family

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Patent Owner(s)

  • HITACHI ASTEMO, LTD.

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashida, Minoru Hitachinaka, JP 31 252
Ishizuka, Yuto Hitachinaka, JP 8 3
Ogura, Kiyotaka Hitachinaka, JP 43 214
Tamura, Shingo Hitachinaka, JP 43 203
Tokuo, Kenichiro Hitachinaka, JP 56 470
Yagai, Masamichi Hitachinaka, JP 18 216
Yamada, Hiroyuki Hitachinaka, JP 455 5038

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Feb 1, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Feb 1, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Feb 1, 2035
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Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00