Externally ignited, four-cycle, piston-type internal combustion

Details Externally ignited, four-cycle, piston-type internal combustion Externally ignited, four-cycle, piston-type internal combustion

1980-04-25

1981-10-13

Cox, Ronald B.

Internal-combustion engines

Precombustion and main combustion chambers in series

Piston carried precombustion chamber

123661, 123306, 123308, F02B 300, F02B 2300

Patent

active

042942071

ABSTRACT:
An internal combustion engine having intake and exhaust valves and a companion piston therefor in a cylinder block is proposed, the piston being provided with several depressions of varying depth and area and interconnected by a guide groove to control flow of the gaseous mixture from one depression to another. A first of the depressions in the piston is located at a distance from the longitudinal axis of the piston and one of the valves has a flat face which is substantially received in the depression. The other depression in the piston also has an axis that is spaced from the longitudinal axis of the piston with the guide groove which communicates with the first depression having a mouth that extends substantially tangentially into said second depression so that the vortex gaseous flow rotates approximately parallel to said piston top about the central longitudinal axis of the second depression toward the end of the compression stroke. It is also contemplated that the first depression can be disposed in the cylinder head with the inlet valve being received in the base of the depression.

REFERENCES:
patent: 4000722 (1977-01-01), May
patent: 4026250 (1977-05-01), Funiciello
patent: 4036202 (1977-07-01), Weslake
patent: 4094272 (1978-06-01), May

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