High pressure fuel pump with mechanical pressure regulation

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United States of America Patent

PATENT NO 11459988
SERIAL NO

17295682

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A high pressure fuel pump includes an inlet metering valve arranged to control a quantity of fuel delivered to the pumping chamber during retracting motion of the pumping plunger. The inlet metering valve includes a metering valve member movable between a closed position and an open position, movement of the metering valve member from the closed position to the open position defining a variable flow area that increases as the metering valve member moves from the closed position toward the open position. An actuator piston in an actuator bore is exposed to pressure in the common rail. The actuator piston is biased toward a first position corresponding to low pressure in the common rail and movable toward a second position corresponding to maximum pressure in the common rail. The actuator piston includes a valve stop that determines a metering position of the metering valve member.

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Patent Owner(s)

Patent OwnerAddress
STANADYNE LLC405 WHITE STREET JACKSONVILLE NC 28546
PURE POWER TECHNOLOGIES INC405 WHITE STREET JACKSONVILLE NC 28546

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Morel, Kenneth R Bloomfield, US 4 10
Myren, Dominic M Chicopee, US 3 6
Norkin, Yevgeniy Longmeadow, US 5 29
Palermo, David G West Springfield, US 3 6
Pellini, Richard P South Windsor, US 3 6
Wegrzyniak, Michael East Granby, US 3 6

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