Pump nozzle
AssigneeMotorenfabrik Hatz GmbH & Co. KG
InventorGuenter Kampichler
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Abstract
The invention relates to a pump nozzle (1) for injecting fuel into an internal combustion engine, especially a single cylinder diesel engine, comprising a piston foot (3), a pump cylinder (8), a pump piston (7), an intermediate disk (16), and an injection nozzle with a pressure spring (14) a pressure spring plate (15) and a nozzle needle (20). The inventive pump nozzle has a reduced construction length by virtue of the pressure spring (14) being offset to the side of the nozzle needle axis.
Claims4
A pump nozzle for injecting fuel into an internal combustion engine, comprising:
- a pump house,
- a pump cylinder disposed in said pump housing and a pump piston disposed in said pump cylinder,
- a compression spring chamber provided in said pump housing, said compression spring chamber having a compression spring and a compression spring plate disposed therein,
- an intermediate washer attached to said pump cylinder,
- a valve needle connected to said intermediate washer, and
- a reversing lever pivotally connected to said valve needle, said intermediate washer and said spring plate at first, second and third pivot points respectively,
- said compression spring biasing said valve needle closed through said reversing lever,
- wherein said compression spring is disposed off to the side of the valve needle axis and beside said pump cylinder.
A pump nozzle for injecting fuel into an internal combustion engine, comprising:
- a pump housing,
- a pump cylinder disposed in said pump housing and a pump piston disposed in said pump cylinder,
- a compression spring chamber provided in said pump housing, said compression spring chamber having a compression spring and a compression spring plate disposed therein,
- an intermediate washer attached to said pump cylinder, and
- a valve needle connected to said intermediate washer and biased closed by said compression spring,
- wherein said compression spring is disposed off to the side of the valve needle axis and beside said pump cylinder.
Dependencies are inferred from the claim text.