A fuel system for managing the flow of fuel to an engine having a metering valve, a bypass valve, and a shutoff valve. The system is configured to allow a primary flow of fuel in a first state to flow through the shutoff valve to the metering valve and out to an output line. In a second state the…
The invention relates to an overflow valve (10) for regulating a fuel volume flow in a low-pressure circuit of a fuel injection system and a high-pressure pump (100) having such an overflow valve (10). The overflow valve (10) has a valve housing (12) and a valve piston (14) that is displaceable in…
A valve assembly (20) for a fuel supply system (10) comprises an attachment (30) which has an inlet (22) for connecting to a delivery line (16) of the fuel supply system (10) and a valve chamber (48) which is connected to the inlet (22). The valve assembly further comprises a pressure relief valve…
A fuel (C) pumping module (10) comprises a body (12, 14) in which is arranged a pressure limiter (20) itself comprising a tubular body (22) extending between a front end (24), where a valve seat (26) is arranged at the center of which a return channel (30) opens out, and a rear end (28). The module…
The circuit has a mechanical low pressure-prefeed pump (2) sucking fuel from a fuel tank (4), where the fuel is supplied to a low pressure region of a high pressure pump (1) via a fuel line. A dosing unit (10) is arranged in the region. A zero-delivery line with a zero-delivery throttle (14) is…
Fuel pressure regulator assembly (13) for an automotive vehicle comprising a fuel pressure regulator (20) which is mounted in an adaptor housing (16) along a main axis (Al), said adaptor housing (16) comprising an intermediate chamber (24) which is closed at its bottom part by the fuel pressure…
A fuel pressure regulator (1,201) for a compression ignition diesel engine. The regulator (1, 201) comprises a bore (5,205) within which is located a valve member (3,203) that is moveable from a non-regulating position to a regulating position. In a non-regulating position a first end (11,211) of…
A regulation valve (1) has: a cylinder (20) that has an inlet port (23) at one end side thereof to introduce the fuel thereinto, and a relief port (25) opening on a side face thereof; a piston (21) that is reciprocatably inserted in the cylinder (20) to vary an opening area of the relief port (25)…
The method involves using a continuous flow sensor with variable decreasing of pressure, such as a mass flow sensor. The pressure behind the flow sensor is regulated by means of a pressure control valve to a constant value. During excess pressure of the selected liquid, it is tapped into a pressure…
The pressure behind the Coriolis mass flow sensor (7) is maintained at a constant value using a pressure regulator (9) which is adjusted based on measurements from output and input pressure sensors (10,11). The fluid flow is divided into two parts before reaching the sensor: the first flows through…
Pressure-discharge device for an injection system of an internal combustion engine is designed as a hydraulically controlled pressure relief valve (33). The pressure on the front side (25) of a low lift pump (21) serves as the control pressure. Preferred Features: The pressure relief valve has a…
The initial pressure control for a fuel pump, in the vehicle fuel tank (1), has a pressure control valve (8) which leads fuel from the fuel line back into the tank when the valve is open. The valve has two chambers, separated by a membrane with a fluid seal action. The second chamber (14) has a…
A pressure regulator for use in regulating the outlet pressure of a pump (21) for use in an engine comprises a piston member (24) which is moveable with respect to an outlet opening (36) under the influence of fluid pressure acting on the piston member (24) to control the degree by which the outlet…