Hydraulic valve lifter

Details Hydraulic valve lifter Hydraulic valve lifter

1982-05-28

1984-10-09

Feinberg, Craig R.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9048, 123 9056, 123 9057, 291567B, F01L 114

Patent

active

044754906

ABSTRACT:
The present invention proposes a hydraulic valve lifter used in an internal combustion engine. The valve lifter has a body consisting of a hollow cylindrical portion accommodating a cylindrical plunger and a lower end portion engaging with a cam controlling the valve motion. The two portions are joined together by welding. The bottom of the plunger is cut out annularly for preventing interference between the plunger and flash, which flash is caused by welding and remains in the inner recess of the lifter body.

REFERENCES:
patent: 2175465 (1939-10-01), Johnson
patent: 2541953 (1951-02-01), Banker
patent: 2925074 (1960-02-01), Dadd
patent: 2939442 (1960-06-01), Dornbos et al.
patent: 3149410 (1964-09-01), Dornbos
patent: 3967602 (1976-07-01), Brown
patent: 4273983 (1981-06-01), Ogawa et al.

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