摘要:
The invention relates to a valve (10) and to a method for producing a valve (10), having a housing (20) and a valve chamber (25), wherein the valve chamber (25) has at least one inlet opening (26) and at least one outlet opening (27) for a fluid. The valve further comprises a control lever (40), wherein the control lever (40) interacts with a closing element (42), by means of which at least one of the openings (26, 27) can be closed, depending on the position of the control lever (40), and wherein the control lever is functionally connected to an actuator (60) outside the valve chamber (25) by means of a sealing element (52) for sealing off the valve chamber (25). The position of the control lever (40) inside the valve chamber (25) can be changed by means of the actuator (60), wherein the control lever (40) is mounted in the housing (20) by means of the sealing element (52) and wherein the sealing element (52) is fixed in the housing (20) by means of an adhesive connection.
摘要:
The invention relates to a device (1) for providing a liquid, in particular an exhaust gas after-treatment agent of a motor vehicle, comprising a tank (2) for receiving the liquid and comprising a device for the removal of liquids (8), which comprises a conveying unit (9) and a heating unit (10) that can be arranged in the tank (2), wherein the heating unit (10) has a heating chamber (12) that can be introduced into the tank (2) through a tank opening (5), and wherein at least one unit (23) for fastening the liquid removal unit (8) is provided on the tank (2). According to the invention, the unit (23) has at least one tension element (24) that can be at least radially formed, which tension element, in order to fasten the liquid removal unit (8) to the tank (2), is radially formed in such a way that it axially encompasses at least one region of the liquid removal unit (8) and a radial protrusion (22) of the tank. The invention further relates to a method for producing a device, in particular as described above.
摘要:
The invention relates to a dosing system for dosing a reducing agent, in particular an aqueous urea solution, into the exhaust tract of a motor vehicle, comprising a dosing valve (1), a reducing agent storage tank (2) and a delivery module (3) for delivering the reducing agent via a feed line (4) from the storage tank (2) to the dosing valve (1), and also a return line (5) which branches off from the feed line (4) downstream of the delivery module (3) and which is connected to the storage tank (2), wherein the dosing system furthermore has a valve arrangement (6) for realizing a back-suction function. According to the invention, the valve arrangement (6) has a first 2/2 directional valve (7) arranged in the feed line (4) upstream of the delivery module (3) and has a second 2/2 directional valve (9) arranged in a bypass line (8), or is designed as a 3/2 directional valve (10). The invention also relates to a 3/2 directional valve for a dosing system of said type.
摘要:
Diaphragm pump for delivering a fluid, in particular an exhaust-gas aftertreatment medium, such as an aqueous urea solution for example, comprising a working chamber (1) which is delimited by a working diaphragm (2) and which can be connected via a first valve (3) to an inlet (4) and via a second valve (5) to an outlet (6), and an electromagnet (7) which comprises a coil assembly (8) and an armature (9) which interacts with the coil assembly (8) and is operatively connected to the working diaphragm (2). According to the invention, the valves (3, 5) are configured in a valve plate (10) which is arranged between the coil assembly (8) and the armature (9). Exhaust-gas aftertreatment system having a diaphragm pump of this type.
摘要:
The invention relates to a tank arrangement and an exhaust gas treatment arrangement having a tank arrangement for storing a fluid, having a tank wall (4, 5), wherein the tank wall (5) separates an inner chamber (6) of the tank arrangement that can be filled with a fluid (15) from an outer chamber (8), and having a heating arrangement (10) for heating the fluid, wherein the heating arrangement comprises a heating element (9, 109) disposed in the inner chamber, wherein the heating arrangement (10) is designed to inductively heat the heating element (9, 109), wherein an magnetization unit (7, 21; 7, 21, 115, 118) of the heating arrangement (10) that can be electrically actuated is disposed in the outer chamber (8) adjacent to the heating element (9, 109), and wherein the tank wall is made of electrically non-conductive or only insignificantly conductive plastic, and therefore inductive heating of the fluid (15) can take place substantially by means of the heating element (9).
摘要:
The invention relates to a fluid storage device (1) for storing a fluid (3), in particular a reducing agent, having a fluid tank (2) and a filter (5) for filtering a fluid (3) that can be stored in the fluid tank (2). According to the invention, the filter (5) is provided in an interior (14) of a housing (13) disposed in the fluid tank (2), and the housing (13) comprises at least one inlet opening (16) for feeding fluid (3) from the fluid tank (2) into the interior (14), wherein the inlet opening (16) is disposed in the fluid tank (2) at a distance from the bottom.