Internal-combustion engines – Poppet valve operating mechanism – Rocker
Patent
1986-06-02
1987-11-24
Feinberg, Craig R.
Internal-combustion engines
Poppet valve operating mechanism
Rocker
123 9055, F01L 118
Patent
active
047081031
ABSTRACT:
A hydraulic valve clearance compensation element comprising a hydraulic censation element (2) in a bore of a rocker arm (1) or similar actuating mechanism extending coaxially from a stem (4) of an engine valve, a longitudinally moveable, adjusting piston (3) ending towards the valve stem (4) in a spherical projection (5) and between said projection and the end face (6) of the valve stem (4) a guide shoe (7,14) is arranged, comprising, on the one hand, a spherical cavity (8) which engages the spherical projection (5) of the adjusting piston (3) and, on the other hand, being supported with a plane surface (9) on the end face (6) of the valve stem (4), characterized in that, on the adjusting piston (3), a cage portion (11) emanates from a location situated behind the spherical projection (5), and extends in the direction of the valve stem (4) and ends there in radially inwardly directed locating zones (13), which engage behind an outer surface (15) of the guide shoe (7,14) and projections (10), respectively, of this surface so that the guide shoe is securely held onto adjusting piston (3) while being angularly freely moveable to said piston.
REFERENCES:
patent: 2051313 (1936-08-01), Olenick
patent: 4291652 (1981-09-01), Trzoska
patent: 4494729 (1985-01-01), Kruger
patent: 4570582 (1986-02-01), Speil
Feinberg Craig R.
Motomak Motorenbau, Maschinen- und Werkzeugfabrik, Konstruktione
Okonsky David A.
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