Valve and spring arrangement for engine

Details Valve and spring arrangement for engine Valve and spring arrangement for engine

1990-07-13

1992-06-16

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

Overhead camshaft

123 9067, 123 906, 1231935, F01L 104, F01L 310

Patent

active

051217180

ABSTRACT:
A cylinder head construction for an internal combustion engine that permits a large number of valves to be employed and good bearing surface without interfering with the insertion or removal of the multiple valve springs. This is accomplished by providing a relief in one of the camshaft journals that is juxtaposed to one of the valves so that the valve spring can be easily inserted and removed. In addition, the seating area for the valve springs in the cylinder head is machined to a diameter smaller than the diameter of the valve springs and a spring seating member is interposed between this cylinder head surface and the adjacent end of the valve spring and has a diameter at least equal to that of the valve spring.

REFERENCES:
patent: 2689557 (1954-09-01), Taylor
patent: 2862485 (1958-12-01), Skinner
patent: 4409935 (1983-10-01), Henn et al.
patent: 4538563 (1985-11-01), Mayers
patent: 4612885 (1986-09-01), Yoshikawa
patent: 4617881 (1986-10-01), Aoi et al.
patent: 4951622 (1990-08-01), Takahashi et al.
patent: 4972813 (1990-11-01), Sugiura
patent: 4977863 (1990-12-01), Kronich

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