Fuel injection system
OwnerBenjamin Birenbauminventor
Life of this patent
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Abstract
The specification describes a distributor apparatus provided with a plurality of distributor valve arrangement in a circular pattern and including valve plungers. The distributor apparatus includes a rotary distributor cam provided with a single distributor lobe for orbiting in the circular pattern and for moving the valve plungers in succession from a non-distributing to a stationary distributing position. The cam lobe has a planar face for holding the valve plungers in the distributing position throughout the entire delivery stroke of a pump unit plunger metering and pumping fuel to the distributor apparatus.
Claims2
A fuel injection apparatus for use in a multi-cylinder internal combustion engine;
- said apparatus comprising a pump head, including a pump head casing;
- a central pump unit consisting of a pump plunger bushing and a pump plunger reciprocal in the pump plunger bushing, and including a fuel metering means so that said pump unit both meters and pumps fuel;
- a distributor apparatus comprising a plurality of distributor valves arranged in a circular pattern about said central pump unit, and including valve plungers;
- a rotary distributor cam having a single distributor lobe for orbiting in said circular pattern and moving said valve plungers in succession from a non-distributing to a distributing position in sequence with the delivery stroke of said pump unit;
- said distributor having a planar face for holding said valve plungers stationary when in the distributing position through the entire delivery stroke of said pump unit;
- spring means for returning said valve plungers to said non-distributing position where they rest on a flat surface of said distributor cam through said casing and into said pump plunger bushing;
- delivery ducts extending from said pump plunger bushing;
- delivery ducts extending from said pump unit to said distributor valves;
- and cam and spring means for reciprocating said pump plunger, each of said distributor valves distributing in succession fuel metered and pumped by said pump unit.
Dependencies are inferred from the claim text.