摘要:
The present invention relates to a piston pump for feeding a fluid, having a piston and a pressure chamber which is arranged between an inlet valve and an outlet valve. The inlet valve has a closing element, a spring element for restoring the closing element, and a holding device. The holding device has a holding region for holding and supporting the spring element and an integrally formed sealing region in order to seal the pressure chamber with respect to a low-pressure region of the piston pump. The sealing region is of annular design and has a parting gap which is closed in an installed state.
摘要:
The invention relates to an internal gear pump for a brake system, in the pump housing of which an internally toothed ring gear and a pinion meshing with the toothing of the ring gear are pivotally supported about parallel axes. As a result the toothing thereof limits an approximately crescent-shaped tapering annular space, in which a filler piece supported toward the intake side of the pump is arranged. The circumferential sides of the filler piece are bent in accordance with the addendum circle of the ring gear toothing or of the pinion toothing. The sides rest against several tooth tips in a sealing manner under a spring force. According to the invention, one of the two circumferential sides of the filler piece is formed by a radially resilient circumferential wall, which is nestled against the tooth tips of the pinion or the ring gear due to the deflection based on the inherent spring force thereof.
摘要:
A support ring of a sealing ring of a piston pump of a slip-controlled vehicle brake system is designed with longitudinal grooves in order to prevent a pressure build-up between the sealing ring and the support ring due to slip leakage.
摘要:
The invention relates to a brake system for a vehicle, with a main brake cylinder, a fluid control unit, and at least one wheel brake. The fluid control unit has, for brake pressure modulation in at least one brake circuit a switchover valve, an intake valve and a recirculating pump for each brake circuit. According to the invention, the fluid control unit has, for each brake circuit, a sliding valve which is connected into a suction line between the recirculating pump and the main brake cylinder. The sliding valve restricts the effective pressure on a suction side of the recirculating pump to a predeterminable maximum pressure value. In this case, the sliding valve can be arranged in series with or parallel to the intake valve.
摘要:
The invention relates to an internal gear pump for a braking system, in the pump housing of which an inner toothed hollow wheel and a gearwheel engaging in the toothing of the hollow wheel are mounted to rotate about parallel axes. The toothing thereof defines a tapering roughly crescent-shaped pump chamber, in which a filling piece is arranged supported along the length thereof. The circumferential surfaces of the filling piece closely correspond to the head diameter of the inner toothing of the hollow wheel or the gearwheel toothing and contact in a sealing manner with several tooth crowns covered thereby. A radial supporting force acts over a longitudinal range of the filling piece for improved sealing of a circumferential surface of the filling piece against the tooth crowns supporting the circumferential surface. According to the invention, a loose fit is provided between the circumferential surfaces of the filling piece and the opposing tooth crowns of the hollow wheel and gearwheel and the play acting on the filling piece is partly eliminated by support forces acting in opposing radial directions which act on the filling piece at a distance from each other.
摘要:
The invention relates to a brake system for a vehicle, with a main brake cylinder, a fluid control unit, and at least one wheel brake. The fluid control unit has, for brake pressure modulation in at least one brake circuit a switchover valve, an intake valve and a recirculating pump for each brake circuit. According to the invention, the fluid control unit has, for each brake circuit, a sliding valve which is connected into a suction line between the recirculating pump and the main brake cylinder. The sliding valve restricts the effective pressure on a suction side of the recirculating pump to a predeterminable maximum pressure value. In this case, the sliding valve can be arranged in series with or parallel to the intake valve.
摘要:
The disclosure relates to an internal gear pump for a slip-regulated hydraulic vehicle braking system, comprising one pressure piece on either side of the gear wheels of said pump. According to the disclosure, a disk consisting of wear-resistant material is arranged between the pressure piece and the gear pump. The pressure pieces can be manufactured from plastic to reduce costs.
摘要:
The invention relates to a control valve for a vehicle brake system having a first fluid connection, a second fluid connection, and a decompressed connection toward the atmosphere. An adjustment spring applies a spring force to a control piston moving in longitudinal direction on the decompressed side, the control piston completely releasing a fluid connection between the first fluid connection and the second fluid connection in an initial position, and to a corresponding vehicle brake system having such a control valve. According to the invention the control valve includes a valve body having a seal seat and a sealing element coupled to a control piston. A sealing region of the sealing element interacts with the seal seat of the valve body in order to limit an effective pressure present on the second fluid connection to a predetermined maximum pressure value. The effective diameter of the control piston is greater than or equal to an effective diameter of the sealing element.
摘要:
An internal gear pump for a slip-controlled hydraulic vehicle braking system includes a pinion, a ring gear, and a filler piece (sickle). The filler piece has an inner part extending in a curved manner in the peripheral direction and an outer part extending in a curved manner in the peripheral direction. The inner part and the outer part are interconnected in a hinged manner on the suction-sided ends. A leg spring is arranged between the inner and outer parts and is configured to separate the inner and outer parts and press against the tops of the teeth of the pinion and the tops of the teeth of the ring gear of the internal gear pump.
摘要:
A brake system for a vehicle, including a brake master cylinder that is hydraulically connected to at least one wheel brake caliper; and a fluid delivery device by which brake fluid is transferable into the at least one wheel brake caliper, the fluid delivery device being embodied as a substantially uniformly delivering pump device by which brake fluid is pumpable out of a fluid reservoir device into the at least one wheel brake caliper. The fluid delivery device can be, a gear pump or a phase-shifted multi-piston pump. A method for operating a brake system of a vehicle is also described.