The invention relates to a simple structured highpressure fuel pump. A fuel pump comprises a reciprocably-supported cylinder (20), a pressurizing chamber (12) using part of the outer surface of the cylinder as the wall surface which move to change the inte...

The pump assembly (10) has a shaft (38) with an eccentric (40) driving pistons (42-46) in cylinders (48-52). Each piston has an inlet valve (54-58) and an outlet valve (60-64). Two cylinders 180 degrees out of phase draw low-pressure fuel (18) from a first...

The object of the present invention is to provide an electromagnetic valve for a variable discharge fuel supply apparatus with improved relief property and high-responsiveness, a small electromagnetic valve, reduced electric current consumption and increas...

The first compartment (39) is hydraulically-connected with a fuel return line (45).

The limiter (56) has a housing (58) with intake (70) and outlet (86), connected by a tensioned element (82) at a set pressure differential. The limiter has a bypass volume, in direction of flow in front of the tensioned element. A hydraulic resistance, esp...

The fuel system (10) has a fuel pump (20). This delivers the fuel (18) from the fuel tank (16), coupled via a fuel line (22) to a second fuel pump (30), with a pressure setting device (48) controlling the pressure on its output side. The fuel line between ...