Rocker arm and method of forming the same

Patent · Tue Jun 23 04:00:00 EDT 1987

OSTI ID:6169624

Dove, Jr, J E

This patent describes a method of forming a push rod seat in a rocker arm for an internal combustion engine comprising the steps of: (a) providing a body having a first generally cylindrical end of diameter ''D'' and length ''L'' and a second axially aligned generally cylindrical end of length ''l'' and diameter ''d'' which is less than ''D''. The first end is spaced from the second end by an intermediate transition surface inclined relative to the axis of the first and second ends; (b) forming a push rod seat recess axially into the first end of the body; (c) providing a rocker arm; (d) forming an opening adjacent an end of the rocker arm, the opening having a cylindrical inner end of a diameter d/sub 1/, slightly less than d and a length l/sub 1/ at least as great as l. An outer end of the opening having a diameter D slightly less than D; the inner and outer ends of the opening joined by a transition surface generally corresponding to the transition surface of the body; and, (e) press fitting the body into the opening.

• Assignee: NOV-87-068660; EDB-87-132481
• Patent Number(s): US 4674453
• OSTI ID: 6169624
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ALIGNMENT
CYLINDERS
ENGINES
FASTENERS
HEAT ENGINES
INCLINATION
INTERNAL COMBUSTION ENGINES
MECHANICAL STRUCTURES
OSCILLATIONS
RODS
SPACE DEPENDENCE
SUPPORTS