Anti-lash adjuster

Patent · Tue Apr 07 04:00:00 EDT 1987

OSTI ID:6635785

Meneely, V A

This patent describes a compression relief engine brake for internal-combustion engines, comprising: an engine having an engine oil pump, exhaust valves, and means for actuating the exhaust valves; a fluid cavity for accepting engine oil under engine oil pressure; means for supplying engine oil under normal pressure to the fluid cavity; a slave piston having a predetermined surface area exposed to the fluid cavity, mounted for reciprocating motion within the fluid cavity, wherein the slave piston has a retracted position defining a maximum clearance between one end of the slave piston and the exhaust valve actuating mechanism and an extended position for reducing the clearance between the end of the slave piston and the exhaust valve actuating mechanism; and means for biasing the slave piston to the retracted position under a predetermined retracting force sufficient to prevent extension of the slave piston upon application of the engine oil at normal pressures to the fluid cavity.

• Assignee: NOV; EDB-87-095451; NOV-87-057042
• Patent Number(s): US 4655178
• OSTI ID: 6635785
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
BRAKES
COMPRESSION
CONTROL
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
EXHAUST SYSTEMS
FLOW REGULATORS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
MACHINE PARTS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PISTONS
PRESSURE CONTROL
PRESSURE DEPENDENCE
PUMPS
SURFACE AREA
SURFACE PROPERTIES
VALVES