초록 ▼

Past methods for starting an engine have included increasing the amount of fuel to support combustion creating an excess of unburned fuel in the exhaust causing white smoke. Such past methods for starting an engine additionally required additional components, such as heater, and required anexcessive

Past methods for starting an engine have included increasing the amount of fuel to support combustion creating an excess of unburned fuel in the exhaust causing white smoke. Such past methods for starting an engine additionally required additional components, such as heater, and required anexcessive draw on the battery to provide extensive glow plug operation and extensive cranking. The present method of starting an engine reduces and essentially eliminates white smoke, reduces the need for extensive glow plug operation and reduces the need for extensive cranking. The method of starting an engine includes the steps of: positioning an intake valve in a closed position; positioning an exhaust valve in a closed position; rotating a piston to a top dead center position; rotating the piston from the top dead center position toward a bottom dead center position; and injecting a fuel into the cylinder.

대표청구항 ▼

[ What is claimed is:] [1.] A method of starting a compression ignition engine, said engine including a head having an intake valve being movable between an open position and a closed position and an exhaust valve being movable between an open position and a closed position, a block being attached t

[ What is claimed is:] [1.] A method of starting a compression ignition engine, said engine including a head having an intake valve being movable between an open position and a closed position and an exhaust valve being movable between an open position and a closed position, a block being attached to said head, said block including a cylinder positioned therein and a crankshaft being rotatably positioned therein, a piston being positioned within said cylinder and a connecting rod connecting said piston to said crankshaft, during rotation of said crankshaft said piston being movable between a top dead center position and a bottom dead center position, and a fuel injector being operatively positioned in said engine and supplying a fuel to said cylinder; said method of starting including the steps of:filling said cylinder with an air;positioning said intake valve in said closed position;positioning said exhaust valve in said closed position;actuating a starter and rotating said crankshaft resulting in rotating said piston to said top dead center position;continuing to actuate said starter and further rotating said piston from said top dead center position toward said bottom dead center position;injecting a fuel into said cylinder, said cylinder including said piston being at a position after said top dead center position in the range of from about 0 degrees to 15 degrees;mixing said fuel and said air; andcombusting said mixed fuel and air during said rotation of said piston from said top dead center position toward said bottom dead center position.