Engine combustion chamber structure

Details Engine combustion chamber structure Engine combustion chamber structure

1987-05-28

1988-09-13

Bennet, Henry A.

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

Having multiple oxidant inlet means

123193CP, F02B 3100

Patent

active

047701390

ABSTRACT:
A combustion chamber is defined by a cylinder having an upper wall surface shaped like a pent-roof and a piston provided on the head portion thereof with a bulged portion conforming to the upper wall surface in shape. A semi-spherical first bowl portion is formed substantially at the center of the bulged portion, and a pair of second bowl portions are formed in the bulged portion to respectively extend on opposite sides of the first bowl portion to the corresponding ends of the bulged portion of the piston along the edge of the bulged portion and to be communicated with the first bowl portion. A swirl generating mechanism is provided to generate a swirl of intake air in the combustion chamber when the engine load is light, and a spark plug is disposed to substantially face the center of the first bowl portion from the upper wall surface.

REFERENCES:
patent: 4009702 (1977-03-01), Mayer
patent: 4586465 (1986-05-01), Krogdahl

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