Disclosed herein is a two-stage fuel injection valve for a diesel engine. The valve includes a fuel valve block (110) having therein a passage (1701) into which fuel is supplied; a nozzle (140) having a low pressure nozzle hole (160) and a high pressure no...

A fuel supply pump with a large fuel discharge amount and a tappet structure body, which are suitably used for an accumulated pressure-type fuel injection device that mechanically amplifies pressure, is provided. A fuel supply pump has a tappet structural ...

A high flow rate fuel valve suitable for an accumulator fuel injection device by which a large amount of fuel is amplified using a piston and used and a fuel supply pump using the high flow rate fuel valve are provided. For this purpose, in a fuel supply p...

A fuel injection device is provided which can inject fuel by very high injection pressure and can realize favorable combustion and exhaust characteristics, and moreover, enables performance of fuel injection with arbitrary fuel injection patterns. In the f...

The device has a control piston (50) acting on an injection valve element (28) with a surface area subject to the pressure in a control pressure chamber (22) determined so that with a second control valve (70) closed, if the control pressure chamber is sep...

Valves (8,24) are designed to open inwards. The first one (24) of these valves operated by an actuator (4) uses a spring assembly (37,38) to impinge on the second valve (8), which is prestressed by a first spring (19). The valves have valve needles (9,25) ...

Fuel injection device for an internal combustion engine comprises a first electrically operated control valve (60) controlling at least indirectly a connection of the pump working chamber (22) with a discharge chamber (24), and a second electrically operat...

A hydraulically actuated fuel injector (14') includes an injector body (105) having an actuation fluid inlet (106) and a needle control chamber (118). A hydraulic means within the injector pressurizes fuel in the injector body (105). The hydraulic means in...