Internal combustion engine comprising a cylinder having a liner wall, a piston and an anti-polishing ring positioned at an upper portion of the liner wall adjacent the piston when the piston is at a top dead center position, wherein the liner wall and the ...

The engine has a cavity comprising a tapered wall (36) that extends in an equidistant manner on both sides of an impact point (26) of a fuel spray (24) to cause an uniform splitting of the spray. The uniform splitting of the spray assures uniform mixing of...

A large-bore (at least 180 mm diameter) diesel engine cylinder configuration featuring a piston crown bowl having an acute re-entrant angle and, optionally, an anti-polish ring. The acute re-entrant angle crown bowl involves a maximum radius of the crown b...

A pilot injection control apparatus for a diesel engine. An injector (2) injects fuel into a combustion chamber of the engine. An electronic control unit (ECU) (51) controls the injector (2) to conduct a pilot injection of fuel prior to a main injection of...

Adequate controllability is ensured when feedback control is provided to both the EGR valve (21) and the intake throttle valve (23), and switching shock is prevented when control is switched from one to the other. The present apparatus comprises an EGR val...

Reinforcing a piston having a cavity or bowl includes depositing and fusing a copper nickel alloy to at least the edge of the bowl An Independent claim is included for the following: (a) A reinforced piston made as above. Preferred Features: The bowl in on...

A fuel injector (6) and a spark plug (7) are arranged inside a combustion chamber (5) of an internal combustion chamber. Fuel is injected from the fuel injector (6) at the end of the compression stroke. When the amount of EGR gas is increased, the amount o...

Pistons of internal combustion engines are thermally highly stressed components, especially in the area of the piston crown (4) and the piston ring zone (1). It is therefore necessary to provide adequate cooling while simultaneously reducing piston weight....