Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Patent
1996-01-16
1997-08-05
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
123 9041, 123198F, F01L 1300, F02D 1306
Patent
active
056531982
ABSTRACT:
A finger follower rocker arm system for an internal combustion engine includes a body having a first end engagable with a valve stem of the internal combustion engine and a second end engagable with a pivot fulcrum of the internal combustion engine, an arm mounted on the body between the first end and second end engagable with a cam lobe of the internal combustion engine, a latch pin disposed within the body and being moveable to engage and disengage the arm, and an actuating mechanism to engage the latch to limit movement of the arm relative to the body to transmit movement of the cam lobe to the body for activating the valve stem and to disengage the latch to allow movement of the arm relative to the body to allow lost motion of the cam lobe relative to the body for de-activating the valve stem.
REFERENCES:
patent: 4151817 (1979-05-01), Mueller
patent: 4203397 (1980-05-01), Soeters, Jr.
patent: 5524580 (1996-06-01), Muir
patent: 5529033 (1996-06-01), Hampton
patent: 5544626 (1996-08-01), Diggs et al.
Kazuo Inoue, Kenichi Nagahiro, Yoshio Ajiki and Noriyuki Kishi, "A High Power, Wide Torque Range, Efficient Engine with a Newly Developed Variable-Valve-Lift and -Timing Mechanism," pp. 1-12 Mar. 1989.
Drouillard, Esq Jerome R.
Ford Motor Company
Lo Weilun
May, Esq. Roger L.
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