Self-contained hydraulic lash adjuster with pressurizing diaphragm

Patent · Tue Jul 14 00:00:00 EDT 1992

OSTI ID:7242684

Cuatt, D R; Shost, M A

This patent describes a hydraulic lash adjusted of the self-contained type including a body defining a cylinder with a closed end, a hollow plunger internally defining a fluid reservoir, the plunger having side walls slidable fitted in the cylinder and an end wall cooperating with the cylinder closed end to define a chamber for fluid in thrust transmitting relation between the cylinder and plunger. This patent describes an improvement in a flexible diaphragm extending across the hollow plunger between the piston and the reservoir and sealingly mounted in the side walls to define a sealing wall with a central portion movable to vary the volume of the reservoir, the piston engaging the central portion of the diaphragm and being shaped to partially support the diaphragm against the force of pressure in the reservoir.

• Assignee: General Motors Corp., Detroit, MI (United States)
• Patent Number(s): US 5129373; A
• Application Number: PPN: US 7-807918
• OSTI ID: 7242684
• Resource Relation: Patent File Date: 16 Dec 1991
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
INTERNAL COMBUSTION ENGINES
DESIGN
HYDRAULIC EQUIPMENT
FLUID FLOW
PISTONS
ENGINES
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330100* - Internal Combustion Engines
330603 - Vehicle Design Factors- Engine System