摘要:
A pressure control valve (1) designed as a closed-end pressure regulator is proposed, which comprises two valve seats (7, 11) arranged in a hydraulic half-bridge circuit, with an electromagnet (2) having a magnetic core, a magnetic coil (3), and a displaceable armature (4), with an anchor rod (5) displaceable by the armature (4) for a closing part (6), which can be made to strike against a first valve seat (7) of the tank edge, and with a push rod (9), which is connected to the anchor rod (5) or is designed as a single piece with the anchor rod (5), which can move a locking element (10) designed as a ball out of a ball seat (11) of the inlet control edge, in which the push rod (9) is configured in such a way at its end facing the ball seat (11) that the opening cross-section of the inlet control edge (12), that is, the ball seat (11), can be modified depending on the axial position of the push rod (9) in such a way that the cross-section is reduced when the target pressure is low, in order to reduce the inlet volume flow, while the total cross-section of the inlet edge (12) is made available when the target pressure is high and/or in which the valve seat (11) is designed in such a way that its diameter on the side facing the ball (10) is smaller than the diameter on the side facing away from the ball (10).
摘要:
An electromagnetic proportional pressure-control valve of a vehicle transmission which includes a magnet part, a hydraulic part and a spring operatively connecting the magnet part to the hydraulic part. The magnet part includes a coil, an armature and an armature bar. The hydraulic part includes first and second closing elements. The first closing element forms a flat seat and the second closing element a ball seat and the closing elements are opened and/or closed via a tappet rod. When no current is applied to the valve, the second closing element is closed and an gap (ü) in the first closing element is larger than one seventh a nominal width (NW) of the valve. The second closure area (A_2) is larger than a circular area having a diameter corresponding to double the gap and the diameter (s) of the tappet rod is smaller than 0.7 times the diameter (b) of the orifice.
摘要:
Proportional pressure control valve with a magnetic part and a valve part, the valve part has an inflow opening for the inflow stream, a first outflow opening for the filling stream, and a second outflow opening for the tank volume stream, and has a ball seat, a flat seat with an opening, a closing part for controlling the throughput quantity through the opening of the flat seat, and a stream diverter. The inflow opening faces away from the magnetic part and coaxially to its longitudinal axis, and the outflow openings are constructed on the side wall of the valve part radially to its longitudinal axis, so that fluid flowing from through the valve is exposed to a diversion of a maximum of 90°. The fluid, after flowing through the ball seat and to and through the stream diverter, experiences a diversion of less than 30°.
摘要:
An electromagnetic proportional pressure-control valve of a vehicle transmission which includes a magnet part, a hydraulic part and a spring operatively connecting the magnet part to the hydraulic part. The magnet part includes a coil, an armature and an armature bar. The hydraulic part includes first and second closing elements. The first closing element forms a flat seat and the second closing element a ball seat and the closing elements are opened and/or closed via a tappet rod. When no current is applied to the valve, the second closing element is closed and an gap (ü) in the first closing element is larger than one seventh a nominal width (NW) of the valve. The second closure area (A—2) is larger than a circular area having a diameter corresponding to double the gap and the diameter (s) of the tappet rod is smaller than 0.7 times the diameter (b) of the orifice.
摘要:
A pressure control valve having valve seats, an electromagnet, a magnetic coil, and an armature coupled to an anchor rod, which are axially slidable for biasing a part against a first valve seat to close a tank edge. A push rod, which is integral with the anchor rod, biases a locking element off a ball seat to open an inlet control edge. The cross-section of the inlet control edge can be modified depending on the temperature such that the cross-section is opened as widely as possible at low oil temperatures. The cross-section of the inlet control edge is reduced at high oil temperatures to the extent that a high valve dynamic of the follow-up slide valve is achieved, and the leakage oil flow is not significantly increased.
摘要:
Proportional pressure control valve with a magnetic part and a valve part, the valve part has an inflow opening for the inflow stream, a first outflow opening for the filling stream, and a second outflow opening for the tank volume stream, and has a ball seat, a flat seat with an opening, a closing part for controlling the throughput quantity through the opening of the flat seat, and a stream diverter. The inflow opening faces away from the magnetic part and coaxially to its longitudinal axis, and the outflow openings are constructed on the side wall of the valve part radially to its longitudinal axis, so that fluid flowing from through the valve is exposed to a diversion of a maximum of 90°. The fluid, after flowing through the ball seat and to and through the stream diverter, experiences a diversion of less than 30°.
摘要:
An arrangement of a pressure limiting valve (1) for the pilot control of a pressure control valve of a hydraulically actuatable shifting element of a motor vehicle transmission in which the pressure limiting valve (1) is disposed such that the armature axis thereof is disposed perpendicular to at least one of the driving direction and the longitudinal axis of the vehicle.
摘要:
A device for the mechanical fastening and electrical contact with at least one control element (2), having first electrical contacts (9a, 9b), within a housing (3). Mating second electrical contacts (11a, 11b) are arranged on a connecting element (4) which can also be plugged into the housing (3). During assembly, the at least one control element (2) and the connecting element (4) are both plugged into the housing (3) so that such plugging engagement achieves electrical connection between the first electrical contacts (9a, 9b) and the second electrical contacts (11a, 11b) and, at the same time, an interlocked fastening of the at least one control element (2) with the housing (3).
摘要:
A pressure control valve unit (10) for a fluid with at least one inlet area (P) and first and second outlet areas (A, T) which can be connected for fluid flow with one another by two mutually coupled seat valves (23, 24). An incoming fluid flow, from the inlet area (P) to the first and second outlet areas (A, T), can be adjusted by way of the first seat valve (23), and a fluid outflow, between the first and second outlet areas (A,T), can be adjusted by way of the second seat valve (24). In this case, a flow-guiding device (26) is arranged, upstream from the first seat valve (23) in the inlet area (P), and imposes a specific flow characteristic upon the inflowing fluid in the area of the first seat valve (23).
摘要:
A device for the mechanical fastening and electrical contact with at least one control element (2), having first electrical contacts (9a, 9b), within a housing (3). Mating second electrical contacts (11a, 11b) are arranged on a connecting element (4) which can also be plugged into the housing (3). During assembly, the at least one control element (2) and the connecting element (4) are both plugged into the housing (3) so that such plugging engagement achieves electrical connection between the first electrical contacts (9a, 9b) and the second electrical contacts (11a, 11b) and, at the same time, an interlocked fastening of the at least one control element (2) with the housing (3).