摘要:
The present invention relates to a motor-pump aggregate with a motor and a piston pump , more particularly for electronically controlled brake systems of motor vehicles, wherein pistons of the pump are drivable by way of an eccentric that is connected to a shaft of the motor and are connected by means of a coupling ring, and wherein the motor has a holding plate. According to the present invention, a projection is provided on the holding plate and extends until into the range of motion of the coupling ring. This provides a stop for the coupling ring, on the one hand, and an improved outlet for leakage fluid of the pump, on the other hand.
摘要:
A motor-and-pump assembly includes armature shaft of the electric motor which is retained in the pump housing by way of a main bearing and an auxiliary bearing.The objective is to align the motor housing centrically to the axis of the armature and, in addition, to achieve a reliable attachment of the motor housing to the pump housing.Therefore, the housing of the electric motor has a bowl-shaped design, and the rim of the motor housing is inserted into a concentrically circumferential groove in a flange surface on the pump housing. The diameter of the inner wall of the groove corresponds to the inside diameter of the motor housing. Thus, the inside wall of the motor housing abuts on the inner rim of the groove. The motor housing is thereby aligned centrically.The motor housing can simply be fastened to the pump housing by a clamping ring which is also inserted into the groove.
摘要:
An electric motor is presented whose housing is sealed off by a plate. The plate features an opening whose inner surface serves as a slide bearing for the shaft, whereby the slide bearing is sufficient for operating the electric motor in a trial run. In addition, a protrusion is provided that can be inserted into a first step of a hole drilled in the pump housing and secures the plate in position in the radial direction on the flanged surface of the pump housing. The outer edge of the plate is formed by a collar, over which the housing can be pushed. Thus, the housing is also fixed in place relative to the plate. overall, a centering of the housing about the motor shaft.
摘要:
Electronic control of the supply pressure of the pump is suggested with respect to a hydraulic brake system which is used for brake slip control, traction slip control and further driving stability control operations. Means of action include, for example, the control or reduction of the motor current of the pump, electromagnetic closure of the suction valve of the pump or a brief change-over of the separating valve in the brake line.
摘要:
An anti-lock hydraulic brake system is described wherein a throttle valve has a restrictive flow condition which becomes effective in the brake line in the event of brake slip control. Pumps for reapply pressure deliver fluid to the wheel brake via this restriction and regulating the pressure in the wheel brake is performed by control of an outlet valve. The throttle valve is operated hydraulically by various arrangements including the application of pump pressure, or by wheel brake pressure applied upon opening of the outlet valve at the start of an anti-lock control cycle.
摘要:
An assembly, consisting of a motor and a pump, the motor being arranged in a motor housing and the pump in a pump housing. Both housings can be coupled to each other. The motor housing is provided with a second main bearing. The pump housing is equipped with a pump bearing. During normal operation, the forces acting on the pump eccentric are essentially supported by the main bearing and the pump bearing. The bearing forces are introduced into the pump housing. If the motor housing is not fastened to the pump housing, the rotor shaft is supported by the main bearing and, if necessary, an accessory bearing. Thus the motor can be tested without being connected to the pump housing.
摘要:
The present invention relates to a piston pump, in particular to the arrangement of the bearing ring for supporting the pump piston on an eccentric. The pump bearing includes a bearing ring and a plurality of bearing needles. The peripheral surface of the eccentric is radially inwardly offset in relation to the peripheral surface of the shaft. The two stepped transitions provide stop surfaces for the bearing needles. The bearing ring is supported on an inner ring for a main bearing, on the one hand, and, on the other hand, directly or indirectly on the stepped transition between a second area and a third area in a blind-end bore. Further, an auxiliary bearing is provided with a bearing ring which is made of a material inhering a high degree of wear. Testing the electric motor, used to drive the piston pump, before the piston pump is assembled is thereby permitted.
摘要:
An anti-lock hydraulic brake system comprising a separating valve (14) and a regulating valve (19). A combined arrangement is provided wherein the valves are connected into each other. The movability (play s) of the piston (30) affords the event that a compensating volume for the control action in the event that the output of the pump is insufficient in specific situations requiring a large amount of fluid for control.
摘要:
An electric motor/pump system which minimizes physical size. The electric motor consists of a pot-shaped housing whose open end is sealed by a plate. The pump consists of an essentially rectangular block in whose middle plane holes are drilled for pump pistons. The plate features a base plate and also ramp-like edges. The pump block features a recess. During assembly of electric motor and pump, the base plate of the plate is located in the recess of the pump block.
摘要:
A hydraulic brake system includes a solenoid valve with a pressure-limiting function to such effect that a stroke movement of a valve tappet, which can be fulfilled in response to the electromagnetic control force, is variable by the action of a hydraulic control force. A first pressure fluid channel is connected to the hydraulic pressure generator and opens into the valve housing proximate the valve tappet, and a second pressure fluid channel opens into the valve housing remote from the valve seat and the valve tappet. The second pressure fluid channel is connected to a pump and at least one wheel brake and is connectable to the first pressure fluid channel depending on the position of the tappet. The hydraulic pressure of the braking pressure generator acts upon an actuating member which counteracts the closing movement of the valve tappet.