摘要:
Disclosed is a pressure regulator for a fuel supply unit of a motor vehicle comprising a valve for joining a connection to an outlet above a designated pressure in the connection, a valve body and a valve seat, and a spring element for prestressing the valve body against the valve seat, characterized in that the valve body is designed as a sheet-metal part.
摘要:
A pressure regulator for a fuel supply unit on a motor vehicle. A membrane is connected to an annular element of a housing and a moving piston by a laser welding technique. A reliable sealing of the membrane is thus guaranteed even at temperatures below 0° C. The region above the piston is thus reliably separated from the region below the piston.
摘要:
Disclosed is a pressure regulator for a fuel supply unit of a motor vehicle and method for production of a pressure regulator. The pressure regulator comprises a valve for producing a joining of a connection to an outlet above a designated pressure in the connection, a movable piston and a membrane, which is held on a fixed annular element, for sealing the piston in relation to the annular element, characterized in that the membrane is welded to the annular element.
摘要:
The invention relates to a pressure regulator for a fuel supply unit on a motor vehicle, whereby a membrane (11) is connected to an annular element (3) of the housing (1) and a moving piston (2) by a laser welding technique. A reliable sealing of the membrane (11) is thus guaranteed even at temperatures below 0° C. The region above the piston (2) is thus reliably separated from the region below the piston (2).
摘要:
Disclosed is a pressure regulator for a fuel supply unit of a motor vehicle comprising a valve for joining a connection to an outlet above a designated pressure in the connection, a valve body and a valve seat, and a spring element for prestressing the valve body against the valve seat, characterized in that the valve body is designed as a sheet-metal part.
摘要:
In a feed unit for feeding fuel from a fuel container of a motor vehicle a surge part (1) has a base plate (9) and an adjoining tubular section (10). The base plate (9) is fabricated in one piece with a nozzle (15) and a mixer pipe (16) of a suction jet pump (8) and has receptacles (21, 13) for a fine filter (3) and for supporting rods (22) of a fuel pump (2). The feed unit is of particularly simple design as a result of this and can be fabricated in a cost-effective way.
摘要:
The humidifying device for a fuel cell has a membrane, one side of which is exposed to cathode exhaust gas of a fuel cell for extracting water vapor from the exhaust gas. A connecting element connects the other side of the membrane to an anode or cathode gas supply to the fuel cell. In operation, water vapor permeates through the membrane and passes on through the connecting elements to humidify the gas being supplied to the fuel cell. A vacuum pump may additionally be provided to enhance the extraction of water vapor from the exhaust gas. A no metering unit allows accurate metering of the humidity of the cathode or anode gas supply.
摘要:
A filling level sensor (2) for a fuel container (1) of a motor vehicle has two lever arms (4, 5). One of the lever arms (4) supports a float (10), while the other lever arm (5) is prestressed against the bottom of the fuel container (1). A detecting device (6) for detecting the filling level in the fuel container (1) determines the difference between the positions of the lever arms (4, 5). The detection of the filling level in the fuel container (1) is hereby rendered very accurate.
摘要:
A fuel tank having an inlet and an outlet is connected to a separate pressure vessel by means of a pump. Fuel vapors are pumped out of the tank and into the pressure vessel while the tank is being filled via the inlet, so that fuel vapors cannot escape during filling. After filling, the inlet is closed and the pressure in the tank is increased to about 4 bar by means of a pressure regulator in a line connecting the pressure vessel to the fuel tank. The pump is then switched off and the fuel can be delivered to the engine via the outlet under the increased fuel pressure in the tank, the pressure being reduced to fuel system pressure by a pressure regulator in the outlet line.
摘要:
A fuel tank for a motor vehicle, having a wall (3) which is manufactured from plastic, in particular by injection molding, is provided on its inside with a permeation barrier (4). The permeation barrier (4) is manufactured from a material which is virtually impenetrable for fuel vapors. The permeation barrier (4) is composed of shell parts (5, 6) which are welded to one another.