An object of the present invention is to provide a pump device that is capable of improving a discharge performance. A first orifice 301 that is provided on a discharge oil passage (a pipe 12) of a pump 2 and a second orifice 302 that, when a flow amount Q becomes greater than a predetermined flow amount Q1, allows pass of brake fluid are provided.

A pump housing of a hydraulic assembly of a vehicle brake system has at least one wheel brake cylinder connection for connecting a wheel brake cylinder to the pump housing, and an outlet valve receiving member associated with the individual wheel brake cylinder connection to receive an outlet valve, which is provided for letting brake fluid out of the wheel brake cylinder into the pump housing. The outlet valve has a valve inlet that can be closed by a closing element with an associated closing force. The outlet valve receiving member has an inlet for letting brake fluid from the wheel brake cylinder into the outlet valve. The inlet is adapted for guiding the brake fluid in a flow direction opposite the closing force when letting the brake fluid into the outlet valve, when the outlet valve is received in the outlet valve receiving member.

A pump housing of a hydraulic assembly of a vehicle brake system has at least one wheel brake cylinder connection for connecting a wheel brake cylinder to the pump housing, and an outlet valve receiving member associated with the individual wheel brake cylinder connection to receive an outlet valve, which is provided for letting brake fluid out of the wheel brake cylinder into the pump housing. The outlet valve has a valve inlet that can be closed by a closing element with an associated closing force. The outlet valve receiving member has an inlet for letting brake fluid from the wheel brake cylinder into the outlet valve. The inlet is adapted for guiding the brake fluid in a flow direction opposite the closing force when letting the brake fluid into the outlet valve, when the outlet valve is received in the outlet valve receiving member.

The present disclosure relates to a hydraulic pressure supply device and an electronic brake system including the same. The hydraulic pressure supply device comprises: a hydraulic block having therein a flow path through which oil supplied from a reservoir flows; a motor unit that generates rotational driving force by an electrical signal; a piston unit coupled to the hydraulic block and moving forward and backward by the rotational driving force; a pump housing unit which is coupled to the hydraulic block to be opposite to the piston unit and in which oil introduced from the hydraulic block is stored so that the piston unit moving forward and backward forms hydraulic pressure; and a motor position sensor unit that senses rotation of the motor unit, one side and the other side of the motor position sensor unit being respectively coupled to the pump housing unit and the piston unit.

The present disclosure relates to a hydraulic pressure supply device and an electronic brake system including the same. The hydraulic pressure supply device comprises: a hydraulic block having therein a flow path through which oil supplied from a reservoir flows; a motor unit that generates rotational driving force by an electrical signal; a piston unit coupled to the hydraulic block and moving forward and backward by the rotational driving force; a pump housing unit which is coupled to the hydraulic block to be opposite to the piston unit and in which oil introduced from the hydraulic block is stored so that the piston unit moving forward and backward forms hydraulic pressure; and a motor position sensor unit that senses rotation of the motor unit, one side and the other side of the motor position sensor unit being respectively coupled to the pump housing unit and the piston unit.

An electro-hydraulic actuator for actuating a brake caliper may have an electric motor with a drive shaft, a transforming mechanism and a first housing to accommodate the transforming mechanism and support a second housing of the electric motor. The transforming mechanism may include a reduction gear to demultiply the rotary motion of the drive shaft. The reduction gear may have a crown with inner toothing in one piece and that is rotationally locked. The crown may have a front portion directly shape-coupled to and inserted in the second housing of the electric motor and a connection integral with the first housing of the transforming mechanism for a precise centering between the electric motor and the reduction gear with respect to the axis of the drive shaft and with respect to a central axis of the reduction gear.

The present disclosure relates to a hydraulic pressure supply device and an electronic brake system including the same, including: a hydraulic block formed with a flow path through which oil supplied from a reservoir flows; a motor pump unit coupled to one side of the hydraulic block, configured to generate drive force by supply of power and to move forward and backward by the drive force; a sleeve coupled to an inside of the hydraulic block on the other side of the hydraulic block and configured to form a forward and backward path of the motor pump unit; a housing coupled to the other side of the hydraulic block and configured to form a space for generating hydraulic pressure with the oil supplied from the reservoir while shielding the other side of the sleeve; and a damping member provided between the sleeve and the housing and configured to absorb vibration generated between the sleeve and the housing and to prevent noise when pressure in the space for generating the hydraulic pressure rises due to the forward and backward movement of the motor pump unit.

The present disclosure relates to a hydraulic pressure supply device and an electronic brake system including the same, including: a hydraulic block formed with a flow path through which oil supplied from a reservoir flows; a motor pump unit coupled to one side of the hydraulic block, configured to generate drive force by supply of power and to move forward and backward by the drive force; a sleeve coupled to an inside of the hydraulic block on the other side of the hydraulic block and configured to form a forward and backward path of the motor pump unit; a housing coupled to the other side of the hydraulic block and configured to form a space for generating hydraulic pressure with the oil supplied from the reservoir while shielding the other side of the sleeve; and a damping member provided between the sleeve and the housing and configured to absorb vibration generated between the sleeve and the housing and to prevent noise when pressure in the space for generating the hydraulic pressure rises due to the forward and backward movement of the motor pump unit.

A method and device supply a vehicle with main and auxiliary air, wherein the device includes a compressor driven via an electric motor for generating compressed air to fill at least one main air tank for supplying pneumatic units of the vehicle, wherein the vehicle has at least one first and second power source for supplying electric energy, wherein a pneumatic actuator that upgrades the vehicle and activates the first power source is provided with the compressed air produced by the compressor in that, in that phase, the second power source feeds the electric motor of the compressor, wherein a switching valve device supplies the compressed air for upgrading to an auxiliary air tank associated with the pneumatic actuator, and otherwise the switching valve device supplies the compressed air produced by the to the main air tank.

A method and device supply a vehicle with main and auxiliary air, wherein the device includes a compressor driven via an electric motor for generating compressed air to fill at least one main air tank for supplying pneumatic units of the vehicle, wherein the vehicle has at least one first and second power source for supplying electric energy, wherein a pneumatic actuator that upgrades the vehicle and activates the first power source is provided with the compressed air produced by the compressor in that, in that phase, the second power source feeds the electric motor of the compressor, wherein a switching valve device supplies the compressed air for upgrading to an auxiliary air tank associated with the pneumatic actuator, and otherwise the switching valve device supplies the compressed air produced by the to the main air tank.