Floating valve stem seal

Patent · Tue Aug 14 04:00:00 EDT 1990

OSTI ID:6568987

Binford, J D

This patent describes an improvement in a valve stem seal assembly adapted for securement to a valve guide of an internal combustion engine. The assembly including a rigid shell defining a longitudinal axis and having an endwall containing a first aperture, an annular resilient seal body disposed within the shell. The body has a second aperture defining an interior annular lip adapted to provide continuous sealing engagement with an axially reciprocating valve stem. The seal body has an exterior circumferential groove, the groove defining a pair of parallel, radially extending side walls, the groove further defining a bottom, wherein the seal body is supported in the first aperture by the circumferential groove.

• Assignee: Dana Corp., Toledo, OH (USA)
• Patent Number(s): A; US 4947811
• Application Number: PPN: US s 7-373421
• OSTI ID: 6568987
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
330601 -- Vehicle Design Factors-- Body & Chassis
CONTROL EQUIPMENT
DESIGN
ENGINES
EQUIPMENT
FLOW REGULATORS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
VALVES