CAMSHAFT PHASER ACTUATED BY AN ELECTRIC MOTOR

摘要

A camshaft phaser is provided for controllably varying the phaser relationship between a crankshaft and a camshaft in an internal combustion engine which includes a camshaft bearing for supporting the camshaft and which defines a mounting bore for mounting the camshaft phaser to the internal combustion engine. The camshaft phaser includes a housing with a gear drive unit disposed within the housing. The gear drive unit includes an input gear member and an output gear member such that the input gear member is attachable to the crankshaft and such that the input gear member is attached to an output shaft of an electric motor. The output gear member is attachable to the camshaft such that rotation of the input gear member by the electric motor causes relative rotation between the crankshaft and the camshaft. The camshaft phaser is disposed between the mounting bore and the camshaft bearing.

主权项

1. A camshaft phaser for controllably varying the phase relationship between a crankshaft and a camshaft in an internal combustion engine, said internal combustion engine having a camshaft bearing for supporting said camshaft, said internal combustion engine defining a mounting bore for mounting said camshaft phaser to said internal combustion engine, said camshaft phaser comprising:
a housing; a gear drive unit disposed within said housing, said gear drive unit having an input gear member and an output gear member, the input gear member being attachable to said crankshaft and being attached to an output shaft of an electric motor, said output gear member being attachable to said camshaft such that rotation of said input gear member by said electric motor causes relative rotation between said crankshaft and said camshaft; wherein said camshaft phaser is disposed between said mounting bore and said camshaft bearing.