Electronic fuel injection system with heat-pressure response

Details Electronic fuel injection system with heat-pressure response Electronic fuel injection system with heat-pressure response

1993-11-30

1994-08-16

Hepperle, Stephen M.

Internal-combustion engines

Charge forming device

Fuel injection system

123497, F02M 3704

Patent

active

053377184

ABSTRACT:
A fuel delivery system for an internal combustion engine that includes a fuel supply, an electric motor pump for feeding fuel under pressure from the supply to the engine, a pressure sensitive switch operatively coupled to the pump and having a first contact movably responsive to fuel pressure and a second contact opposed to said first contact, and a PWM amplifier responsive to the pressure sensitive switch for applying electrical power to said pump. The second switch contact is mounted on a bimetallic spring responsive to fuel temperature for altering operating characteristics of the switch, and thereby altering fuel pressure characteristics of said system as a function of fuel temperature.

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