Intake valve for internal combustion engine

Details Intake valve for internal combustion engine Intake valve for internal combustion engine

1990-08-15

1992-01-21

Cross, E. Rollins

Internal-combustion engines

Valve

Valve head cooperates with manifold

123188A, 123188M, 123188AF, F01L 320

Patent

active

050819658

ABSTRACT:
A valve for an internal combustion engine has a stem and head with differing diameters for the stem and the upper portion of the head. A radially irregular blend region placed between the stem and upper head is aligned to have a slight runout, that is, the axis of the blend region is not coaxial with the axes of the stem and head. The blend region is positioned on the valve to be below the valve guide when the valve is closed and in the flowpath of the fuel mixture when the valve is open. The radially irregular blend region creates additional turbulence which focuses the fuel mixture into the opening between the open valve head and cylinder head, thereby increasing the velocity of the fuel through the opening. In addition, a post in the fuel passageway deflects the fuel around the wider portion of the valve head.

REFERENCES:
patent: 4159011 (1979-06-01), Sperry
patent: 4881500 (1989-11-01), Kojima et al.

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