Internal-combustion engines – Poppet valve operating mechanism – Rocker
Patent
1994-02-28
1995-05-16
Dolinar, Andrew M.
Internal-combustion engines
Poppet valve operating mechanism
Rocker
123 9061, F01L 114, F01L 118
Patent
active
054151384
ABSTRACT:
Difficulties with wear and the cost of guide systems for pushrods and overhead valve engines are reduced in an overhead valve internal combustion engine of the type having a block (10) with at least one cylinder (12), a head (26) fitted to the block (10), a valve (32) mounted for reciprocating movement in the head (26) toward and away from the cylinder (12) and a rocker arm (56) rockably mounted on the head (26). The rocker arm (56) abuts the valve (32) oppositely of the cylinder (12) and aligned pushrod cavities (72), (74) are respectively provided in the head (26) and block (10). A reciprocal pushrod (64) is disposed in the cavities (72), (74) and engages the rocker arm (56) oppositely of the valve (32). According to the invention, guides in the form of two spaced pins (78), (80) are disposed in one of the cavities (72) and are laterally spaced a distance about equal to the thickness of the pushrod (64) and are also spaced in the direction of reciprocation (82) of the pushrod (64).
REFERENCES:
patent: 3048156 (1962-08-01), Van Slooten
patent: 3086507 (1963-04-01), Mooney, Jr.
patent: 3195527 (1965-07-01), Eaton
patent: 3301241 (1967-01-01), Iskenderian
patent: 4856467 (1989-08-01), Kronich
Brunswick Corporation
Dolinar Andrew M.
Lo Weilun
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