Axially symmetrical piston for reciprocal engines

Details Axially symmetrical piston for reciprocal engines Axially symmetrical piston for reciprocal engines

1988-03-16

1989-08-22

Cross, E. Rollins

Internal-combustion engines

Cooling

Internal cooling of moving parts; e.g., hollow valves,...

123193P, 92181R, F01P 104

Patent

active

048585661

ABSTRACT:
A piston assembly for high-pressure, high-temperture, internal combustion engines, the piston assembly having a piston unit with a piston head and a piston skirt which interconnect to form a substantially sperical internal socket, the assembly also having a wrist pin unit with a substantially spherical ball engageable in the socket of the piston unit, the ball being connected to a connecting rod through the wristpin for limited articulation of the connecting rod and free rotation of the piston unit on the ball of the wrist pin unit, the piston assembly also having a recessed combustion chamber with cooling features.

REFERENCES:
patent: 1814781 (1931-07-01), Bailey
patent: 3335643 (1967-08-01), Wentworth
patent: 3628511 (1971-12-01), Fischer
patent: 4056044 (1977-11-01), Kamman et al.
patent: 4270494 (1981-06-01), Garter et al.
patent: 4372179 (1983-02-01), Dolenc et al.
patent: 4517930 (1985-05-01), Nakano et al.
patent: 4617887 (1986-10-01), Nagase et al.
patent: 4791787 (1988-12-01), Paul

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