Piston head block for internal combustion engine

Details Piston head block for internal combustion engine Piston head block for internal combustion engine

1989-08-23

1991-11-26

Dolinar, Andrew M.

Expansible chamber devices

Piston

With ported chamber in piston part for circulating heat...

123193P, F01P 300

Patent

active

050673939

ABSTRACT:
A piston head block is provided with smaller exernal diameter at the portion where a cut-out for receiving a lubricant injection nozzle that remaining portion. With the smaller diameter, a clearance or gap is formed between the internal surface of an engine cylinder and the external surface of the smaller diameter portion. Therefore, during piston stroke, the smaller diameter portion, in which the lubricant injection nozzle receptacle cut-out is formed, becomes free from the transverse stress.

REFERENCES:
patent: 3424138 (1969-01-01), Dreisin
patent: 4026197 (1977-05-01), Lapke et al.
patent: 4286505 (1981-09-01), Amdall
patent: 4428330 (1984-01-01), Shimizu
patent: 4530312 (1985-07-01), Kanda et al.
patent: 4608947 (1986-09-01), Stadler
patent: 4907545 (1990-03-01), Mills

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