Valve operating assembly

Details Valve operating assembly Valve operating assembly

2006-04-25

2006-04-25

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Tappet

C123S090450, C123S090520

Reexamination Certificate

active

07032553

ABSTRACT:
The present invention relates to an assembly, comprising an adjusting body, a valve lifter body and means for cold forming at least a portion of at least one of the adjusting body and the valve lifter body. The adjusting body includes an outer surface enclosing a cavity, wherein the cavity includes an inner surface configured to accommodate an insert and a spring. The valve lifter body includes a first end containing a first opening, a second end containing a second opening, and an outer lifter surface that encloses a first and second lifter cavity, wherein at least one of the ends is substantially flat, the second lifter cavity includes a second inner lifter surface that is configured to house the adjusting body, and the first cavity is configured to house a cylindrical insert and includes a first inner lifter surface provided with a plurality of walls that extend from the first opening, a curved surface, a flat surface, and an angled surface that is at an angle with respect to the flat surfaces.

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