Engine valve train module

Patent · Tue Feb 16 04:00:00 EST 1988

OSTI ID:5107365

Wirth, R C; Philo, C M

This patent describes a valve train with rocker positioner that is adapted to be assembled as a valve train module, tested, shipped and then mounted to the cylinder head of an internal combustion engine in position to effect operation of the inlet and exhaust valves associated with the cylinder head via rocker arm assemblies pivotably supported on a first rocker shaft having axially spaced apart mounting apertures therethrough and the rocker arm assemblies pivotably supported on a second rocker shaft having axially spaced apart mounting apertures therethrough. The rocker arm assemblies are adapted to be actuated by an engine driven camshaft of the engine. The rocker positioner includes shaft retainer means to effect retention of the first rocker shaft and the second rocker shaft in spaced apart parallel alignment with respect to each other. Rocker positioning means effect and retain a predetermined axial operative position of the rocker arm assemblies on a respective associate the first rocker shaft and the second rocker shaft. Anti-rotation means maintain the angular position of the rocker arm assemblies at a position corresponding substantially to the operative position of each of the rocker arm assemblies as installed on the cylinder head of an engine; and, fastener means operatively associated with the rocker positioner and the first and second rocker shafts retain the elements together as a valve train module and then effect attachment of the rocker positioner and the first and second rocker shafts to the cylinder head of an engine whereby the valve train module will be secured in position to effect operation of the inlet and exhaust valves.

• Assignee: General Motors Corp., Detroit, MI
• Patent Number(s): US 4724805
• OSTI ID: 5107365
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL EQUIPMENT
CYLINDERS
DESIGN
ENGINES
EQUIPMENT
EXHAUST SYSTEMS
FLOW REGULATORS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
OPERATION
RODS
SHAFTS
VALVES