Combustion chamber for internal combustion engine
AssigneeIsuzu Motors Limited
InventorShiro Ishida
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a combustion chamber for internal combustion engines using a volatile fuel of low certain number such as gasoline, alcohol or the like. The fuel is directly injected into communicating main and subsidiary combustion chambers which are formed side by side in the top wall of a piston and in which swirls are formed. The fuel is supplied into the main and subsidiary combustion chambers in atomized form to facilitate its volatilization, and partly deposited in the form a film which is easily volatilized by hot compressed air and wall heat in the respective combustion chambers. A spark plug is provided in the main and subsidiary combustion chambers to accelerate ignition of the atomized fuel supplied thereto.
Claims13
A combustion chamber for an internal combustion engine, comprising:
- a main combustion chamber hollowed out of the top of a piston;
- a subsidiary combustion chamber hollowed out of said piston top, said subsidiary combustion chamber communicating with and disposed in side by side relatinship to said main combustion chamber;
- a fuel injection nozzle located generally between said main and subsidiary combustion chambers, and having a main nozzle hole for supplying a spray of atomized fuel to said main combustion chamber and an auxiliary nozzle hole adapted to be opened before said main nozzle hole for supplying a spray of atomized fuel to said subsidiary combustion chamber;
- and
- sparking means located in both main and subsidiary combustion chambers to accelerate ignition of the supplied fuel.
A combustion chamber for an internal combustion engine, comprising:
- a main combustion chamber defined in the top of a piston;
- a subsidiary combustion chamber defined in said piston top and adjacent said main combustion chamber, said main and subsidiary chambers communicating with each other through a passage in said piston top;
- fuel injection nozzle means located generally in said passage for supplying a spray of fuel to said chambers;
- and
- sparking means located in said main and subsidiary combustion chambers for accelerating ignition of the supplied fuel.
Dependencies are inferred from the claim text.