Controllable valve tappet for use with dual ramp cam

Details Controllable valve tappet for use with dual ramp cam Controllable valve tappet for use with dual ramp cam

1977-08-16

1979-08-21

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123 9015, 123 9016, 123 9055, 123 9057, 123 9017, F02D 1304, F01L 324

Patent

active

041649176

ABSTRACT:
A hydraulic tappet or lash adjuster of simplified design is disclosed for use in the valve train of an internal combustion engine equipped with dual ramp cams. In one embodiment, the disclosed tappet is designed to respond to the presence or absence of control pressure supplied through a single supply port to cause variation in the timed relationship of valve opening and piston movement whereby the internal combustion engine may be operated in a power mode or a braking mode. In another embodiment, a pressure relief outlet is provided in the tappet for cooperation with a pressure relief port to insure collapse of the tappet thereby to prevent the valve from being opened beyond a pre-determined fully open position.

REFERENCES:
patent: 3367312 (1968-02-01), Jonsson
patent: 3405699 (1968-10-01), Laas
patent: 3547087 (1970-12-01), Siegler
patent: 3572300 (1971-03-01), Stager et al.
patent: 3650251 (1972-03-01), Pelizzoni
patent: 3786792 (1974-01-01), Pelizzoni et al.

Affiliated with

Also associated with

Rating

Controllable valve tappet for use with dual ramp cam does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controllable valve tappet for use with dual ramp cam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controllable valve tappet for use with dual ramp cam will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1319342