Valve supporting arrangement of an internal combustion engine

Patent · Tue May 27 04:00:00 EDT 1986

OSTI ID:5502180

Hayashi, Y

A supporting arrangement is described for a valve of an internal combustion engine having a valve stem portion, comprising a rigid member for supporting the stem portion of the valve for axial movement of the valve, a stamped or press-formed upper retainer connected to the upper portion of the valve stem, a lower annular retainer disposed on the rigid member and surrounding the valve stem, and a coil spring compressed between the upper and lower retainers to bias the valve in a direction to close the associated valve opening. The upper retainer has a substantially constant thickness throughout and comprises an annular collar portion having an essentially constant diameter along the length thereof with the diameter at least substantially equal to the inner diameter of the coil spring. The collar portion is coaxially disposed within an upper portion of the coil spring, an annular flange portion extending radially outwardly from the upper end of the collar portion and engaging with the upper end of the coil spring, and means for achieving a spline connection between the central portion of the retainer and the upper portion of the valve stem, and wherein the upper retainer is divided along a diameter into two identical elements which are disposed about the upper portion of the valve stem such that the radial pressure exerted by the coil spring operates to bias the identical elements into their respective positions operative to connect the upper retainer to the valve stem.

• Assignee: Nissan Motor Co. Ltd., Yokohama
• Patent Number(s): US 4590900
• OSTI ID: 5502180
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL EQUIPMENT
DIMENSIONS
ENGINES
EQUIPMENT
FLANGES
FLOW REGULATORS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MECHANICAL STRUCTURES
PRESSURE EFFECTS
SUPPORTS
THICKNESS
VALVES