Stratified burning internal combustion engine

Details Stratified burning internal combustion engine Stratified burning internal combustion engine

1993-02-26

1994-03-22

Cross, E. Rollins

Internal-combustion engines

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

Having multiple oxidant inlet means

12318814, 123430, F02B 3100

Patent

active

052954641

ABSTRACT:
An internal combustion engine according to this invention is provided with intake ports and an injector. The intake ports are designed to form stratified tumble flows of different fuel concentrations in a combustion chamber. A spark plug is arranged in the combustion chamber to ignite one of the tumble flows, which one tumble flow is rich in fuel. Each intake port is provided with a longitudinal partition which divides an interior of the intake port into two passages. These longitudinal partitions are formed in such a way that, of the air-fuel tumble flows formed around the spark plug, the tumble flow closest to the spark plug is formed of a richer air-fuel mixture. Each longitudinal partition is arranged only on a side upstream of a valve stem of an intake valve in the corresponding intake port, so that a sufficient amount of intake air can be obtained while extremely minimizing a reduction in the actual cross-sectional flow area.

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patent: 5186139 (1993-02-01), Matsura
patent: 5237974 (1993-08-01), Isomoto et al.

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