Fuel injection amount - fluid pressure conversion system

Details Fuel injection amount - fluid pressure conversion system Fuel injection amount - fluid pressure conversion system

1979-07-27

1982-05-04

Myhre, Charles J.

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123385, F02D 112

Patent

active

043276849

ABSTRACT:
In an internal combustion engine equipped with a fuel injection pump which has a movable fuel amount determining element, the position of which determines the amount of fuel provided for injection by the fuel injection pump, a pressure regulating valve is disclosed which is coupled to the movement of the movable fuel amount determining element and which provides an output fluid pressure which represents the position of this element, and therefore represents the load on the engine. The valve comprises a fixed orifice supplied with a constant fluid pressure, a fluid passage downstream of the fixed orifice, a pressure takeoff passage branching from the fluid passage, and a variable orifice downstream of the fluid passage whose effective opening area is varied according to the movement of the fuel amount determining element. Fluid flows from the upstream side of the fixed orifice through it, through the fluid passage, and through the variable orifice, in that order, the pressure of fluid at the point where the pressure takeoff passage branches from the fluid passage varying according to the position of the fuel amount determining element.

REFERENCES:
patent: 2253455 (1941-08-01), Eideneier
patent: 2910696 (1959-10-01), Heiser
patent: 2995898 (1961-08-01), Thorner
patent: 4220128 (1980-09-01), Kobayashi

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