INTERNAL COMBUSTION ENGINE

摘要

Stable combustion is achieved in an internal combustion engine, in cases where an air stream has occurred in a cylinder. The engine includes a fuel injection valve having a first nozzle hole and a second nozzle hole, and an spark plug disposed at a position through which the swirling flow flows, and which is at the downstream side of the flow of the swirling flow from an extension line of the first nozzle hole and at the upstream side of the flow of the swirling flow from an extension line of the second nozzle hole, for igniting a spray of fuel injected from the fuel injection valve, wherein the first nozzle hole and the second nozzle hole are formed in such a manner that the shortest distance from the extension line of the first nozzle hole to the spark plug becomes longer than the shortest distance from the extension line of the second nozzle hole to the spark plug.

主权项

1. An internal combustion engine in which a swirling flow occurs in a cylinder, said engine comprising:
a fuel injection valve that has a plurality of nozzle holes including at least a first nozzle hole and a second nozzle hole for injecting fuel into said cylinder; and an spark plug that is disposed at a position through which said swirling flow flows, and which is at the downstream side of the flow of said swirling flow from an extension line of said first nozzle hole and at the upstream side of the flow of said swirling flow from an extension line of said second nozzle hole, said spark plug to ignite a spray of fuel injected from said fuel injection valve; wherein said first nozzle hole and said second nozzle hole are formed in such a manner that a shortest distance from the extension line of said first nozzle hole to said spark plug becomes longer than a shortest distance from the extension line of said second nozzle hole to said spark plug.