Patent ID: 6036448
Filing Date: 2000-03-14
Classification: F01B,F02M,F04B,F16F

Abstract:
A piston-type fuel pump comprising:a base;at least one cylinder bore in said base;a piston in said cylinder bore having an end portion extending therefrom, said end portion of said piston having a port for admitting fuel into said cylinder bore;a swash plate assembly including a wobble plate operatively connected to said end portion of said piston;means for producing oscillatory motion of said wobble plate and resultant reciprocal movement of said piston in said cylinder bore; anda bellows defining a closed interior space and having opposite first and second end portions;said first end portion of said bellows being sealingly attached to said base and said second end portion of said bellows being sealingly attached to said wobble plate so that said interior space of said bellows surrounds said extending end portion of said piston to prevent escape of fuel.