Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1984-03-27
1985-11-26
Moy, Magdalen Y. C.
Internal-combustion engines
Charge forming device
Fuel injection system
417517, F02M 4106
Patent
active
045549010
ABSTRACT:
In the use of fuel injection pumps, a distributing rotor is often utilized to sequentially deliver fuel from an inlet to a combustion chamber on an engine in combination with one or more reciprocating high pressure pistons. Due to the positioning of the various passages through which the fuel is directed, cavitation of the pump is often experienced which has a very serious effect on the life of the components within the pump. The fluid distribution apparatus of the present invention provides a single delivery passage between the pumping chambers of the reciprocating pistons and the distributing rotor. With this arrangement, fluid that is communicated from the bore to the pumping chambers in response to the intake stroke of the pistons is directed back through the same passage during the pressurization stroke of the pistons. The positioning of the single delivery passage prevents the fuel injection pump. The positioning of the single delivery passages prevents the fuel injection pump from experiencing the severe cavitation that is common with previous designs and thus the fore-shortened life of the pump components.
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Gibson Dennis H.
Stockner Alan R.
Waldman Donald J.
Caterpillar Tractor Co.
Moy Magdalen Y. C.
Okonsky David A.
Perry William C.
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