Hydraulic actuator in an internal combustion engine

Details Hydraulic actuator in an internal combustion engine Hydraulic actuator in an internal combustion engine

1997-07-01

1998-09-08

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 123 9034, 92111, 92112, 92 33, F01L 1344, F02D 1302

Patent

active

058030310

ABSTRACT:
A hydraulic actuator including a piston connected to a camshaft. First and second passages extend through the camshaft. The piston is actuated in accordance with differences in pressure applied to the piston through the passages. A bearing rotatably supports the camshaft. The first and second passages open at the circumferential surface of the camshaft. First and second grooves are defined in the bearing and arranged at different positions with respect to the axial and circumferential directions of the camshaft. The first and second grooves are communicated with the first and second passages such that the grooves form substantially sealed hydraulic passages for carrying hydraulic fluid to or from the passages while the camshaft rotates.

REFERENCES:
patent: 5170756 (1992-12-01), Szodfridt
patent: 5540197 (1996-07-01), Schmidt et al.
patent: 5638782 (1997-06-01), Eguchi et al.
patent: 5669343 (1997-09-01), Adachi

Affiliated with

Also associated with

Rating

Hydraulic actuator in an internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic actuator in an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic actuator in an internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1272458