Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Patent
1978-03-27
1980-05-27
Lazarus, Ira S.
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
123 9016, 123 9039, F02D 1306
Patent
active
042045126
ABSTRACT:
A cylinder deactivator system for an internal combustion engine having an engine block and head, a plurality of engine cylinders in the block, intake and exhaust valves for each engine cylinder spring-loaded to their closed positions, and a cam operated valve train operating each of the valves. Each valve train has a rocker lever assembly and a rocker lever shaft. The rocker lever assembly has a bore passing substantially horizontally through its midsection that allows the rocker lever assembly to be rockingly connected to the rocker lever shaft passing therethrough. One end of the rocker lever assembly presses against a coil spring assembly that normally keeps the valve closed and the other end of the rocker lever assembly receives the top of a push rod. The rocker lever assembly has a first member and a second member that are joined at the midsection of the rocker lever assembly with each member having aligned horizontal bores at their ends adjacent at the midsection through which passes the rocker lever shaft. A first fluid pressure cylinder assembly is mounted on the top of the first member of the rocker lever assembly and it has a piton, a piston rod, and a pawl mounted on the end of the piston rod. Two of the opposite surfaces of the pawl mate with the shoulder surfaces of the first and second member in the manner of a keystone when that particular cylinder is operational. When the pawl is in position the rocker lever operates in the manner of an unmodified rocker lever.
REFERENCES:
patent: 3964455 (1976-06-01), Brown
patent: 4050435 (1977-09-01), Fuller, Jr. et al.
patent: 4064861 (1977-12-01), Schulz
patent: 4114588 (1978-09-01), Jordan
Lazarus Ira S.
Logan II Charles C.
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