Abstract: Systems, devices, and methods for recovering mixed refrigerant and/or nitrogen within liquefaction systems are provided. The systems, devices, and methods facilitate recovering mixed refrigerant (MR) and/or nitrogen vapor that can leak from a compressor, separating the MR from the nitrogen, and reusing the MR and/or the nitrogen within the liquefaction system. Recovering and reusing MR and/or nitrogen can minimize loss of MR and nitrogen which can lower the total operating cost of a liquefaction system. Additionally, recovering the MR, rather than burning it, can reduce environmental emissions by reducing the amount of MR that is burned.

Abstract: Systems, devices, and methods for recovering mixed refrigerant and/or nitrogen within liquefaction systems are provided. The systems, devices, and methods facilitate recovering mixed refrigerant (MR) and/or nitrogen vapor that can leak from a compressor, separating the MR from the nitrogen, and reusing the MR and/or the nitrogen within the liquefaction system. Recovering and reusing MR and/or nitrogen can minimize loss of MR and nitrogen which can lower the total operating cost of a liquefaction system. Additionally, recovering the MR, rather than burning it, can reduce environmental emissions by reducing the amount of MR that is burned.

Abstract: A method for dimensioning the admission pressure at a first, analogized, electromagnetically actuated hydraulic valve for sensitively regulating the pressure in a pressure circuit in which the admission pressure at the first valve can be set by the delivery capacity of an engine pump assembly which is connected to the first valve via a pump-outlet-side pressure line, in particular in a hydraulic motor vehicle brake system, wherein the admission pressure is set by electronically evaluating the tappet reaction of the first valve or of a further hydraulic valve which is also actuated electromagnetically and is connected to the pump-outlet-side pressure line. An electronically controlled motor vehicle brake pressure control device with which the above method can be carried out is also described.

Abstract: A method, and use of the method in motor vehicle brake control systems, for determining the delivery capacity or the frequency of activation of a fluid pump, in particular a hydraulic pump, in an electronic pressure control unit, wherein the latter comprises not only a pressure circuit controller which is activated by analogized valve actuation but also a pump power setting means for setting the delivery capacity of the hydraulic pump, in which the frequency of movement of the mechanical pumping unit is determined by pressure fluctuations of the delivery fluid, wherein the fluctuations are acquired by reference to changes in the magnetic flux in the region of the actuation magnetic field of an electromagnetically actuated fluid valve.

Abstract: A method for dimensioning the admission pressure at a first, analogized, electromagnetically actuated hydraulic valve for sensitively regulating the pressure in a pressure circuit in which the admission pressure at the first valve can be set by the delivery capacity of an engine pump assembly which is connected to the first valve via a pump-outlet-side pressure line, in particular in a hydraulic motor vehicle brake system, wherein the admission pressure is set by electronically evaluating the tappet reaction of the first valve or of a further hydraulic valve which is also actuated electromagnetically and is connected to the pump-outlet-side pressure line. An electronically controlled motor vehicle brake pressure control device with which the above method can be carried out is also described.

Abstract: A hydraulic unit for a hydraulic regulation device, in particular for slip-controlled motor vehicle brake systems, includes several hydraulic, mechanical and/or electrically operable functional elements arranged at an accommodating member, such as accumulation elements, valve elements, pressure-generation and driving elements, and including at least one cavity associated with at least one functional element. Two connecting channels that lead into the atmosphere are provided with closing devices, which hinder the ingress of fluid into the cavity and allow ventilation of the cavity and a discharge of leakage fluid into the atmosphere. The invention permits an automatic bleeding and an automatic removal of leakage fluid independently of the spatial arrangement of the unit.

Abstract: The present device relates to a pressure controller, in particular for a slip-controlled brake system in a motor vehicle, which is equipped with a first housing (1) for the accommodation of several pressure control valves and with a second housing (2) arranged on the first housing (1) and accommodating electric and/or electronic components which electrically contact several pressure sensors arranged in a sensor housing (3) when the second housing (2) is placed on the first housing (1), and at least one device is arranged between the sensor housing (3) and the second housing (2) for the compensation of process and assembly tolerances.

Abstract: In a method for operating a hydraulic vehicle brake system, it is arranged for that hydraulic pressure is metered directly into a master brake cylinder by way of a preceding hydraulic booster, and in which the hydraulic pressure is controlled in accordance with a quantity representative of the driver's braking request because the pressure in the preceding hydraulic booster is controlled by actuation of at least two analog or analogized valves.

Abstract: The present invention relates to a hydraulic unit for a hydraulic regulation device, in particular for slip-controlled motor vehicle brake systems, comprising several hydraulic, mechanical and/or electrically operable functional elements arranged at an accommodating member, such as accumulation elements, valve elements, pressure-generation and driving elements, and comprising at least one cavity associated with at least one functional element and disposing of means for bleeding. It is the core of the invention that two connecting channels that lead into the ambience are provided with closing devices, which hinder the ingress of fluid into the cavity and allow ventilation of the cavity and a discharge of leakage fluid into the ambience. The invention permits an automatic bleeding and an automatic removal of leakage fluid independently of the spatial arrangement of the unit.

Abstract: The return pumps of brake systems with a precharging device are greatly stressed by the precharging pressure and subjected to premature wear. Significant leakage occurs in the long run which will damage the pump motors in the worst case. This is prevented by controlling the pressure fluid supply from the precharging source to the suction side of the return pump as a function of the pressure gradient in this connecting line. To this end, an electromagnetically operated on-off valve (23) with a hydraulically insertable throttle is used.

Abstract: The present invention relates to a pressure control device, in particular for motor vehicle braking systems, with at least one valve carrier accommodating a pressure control valve, a pressure sensor for detecting the hydraulic pressure in a pressure fluid channel of the valve carrier as well as with an electric module including electric and/or electronic structural members and being connected to the pressure control valve and the pressure sensor by way of electric contacts. The pressure sensor is positioned in a space interposed between the pressure control valve and the electric module, with at least one of the contacts that is connected to the pressure sensor leading through a sensor carrier to the electric module. The sensor carrier is located at least in sections within the space.

Abstract: The present invention relates to a subassembly (1)), in particular a brake unit of an electronically controlled vehicle brake system, including a motor (2) having a housing (7), a hydraulic block (4), and a motor electronics (6) for controlling or regulating the motor (2). To create a particularly compact subassembly that is optimized in terms of heat dissipation, the motor electronics (6) is located at least partly within the housing (7) of the motor (2) according to the invention.

Abstract: The present invention relates to a hydraulic unit, in particular for slip-controlled automotive vehicle brake systems, including a pump and an electric motor for driving the pump, wherein the drive of the electric motor extends into a crank chamber of the pump, and including ventilation and venting of the crank chamber for the purpose of pressure compensation in relation to the atmosphere using a pressure compensation channel. The pressure compensation channel is connectable to the atmosphere by way of inlet and outlet valves which are closed in their basic position and responsive to the pressure differential.

Abstract: A pressure valve, particularly for a reciprocating piston pump for conveying pressure fluid in slip-controlled hydraulic brake systems, wherein the pressure valve has a valve seat body and a valve cover body with a pre-tensioning element and a valve element installed in the space formed between the valve seat body and the cover body, which is particularly economical to manufacture, easy to install and particularly safe because of the valve seat body and the valve cover body being manufactured by non-cutting process.

Abstract: The present invention relates to a pressure control device, in particular for motor vehicle braking systems, with at least one valve carrier (2) accommodating a pressure control valve (1), a pressure sensor (3) for detecting the hydraulic pressure in a pressure fluid channel (4) of the valve carrier (2) as well as with an electric module (5) including electric and/or electronic structural members and being connected to the pressure control valve (1) and the pressure sensor (3) by way of electric contacts (18). The pressure sensor (3) is positioned in a space (17) interposed between the pressure control valve (1) and the electric module (5), with at least one of the contacts (18) that is connected to the pressure sensor (3) leading through a sensor carrier (16) to the electric module (5). The sensor carrier (16) is located at least in sections within the space (17).

Abstract: The present invention relates to a space-saving and weight-saving motor-and-pump assembly which comprises a drive motor and a pump unit driven by the shaft of the said motor. In order to supply in parallel as many media as possible with an assembly of this type, the present invention suggests the additional integration of at least one second pump unit, driven by the motor shaft of the drive motor, into the motor-and-pump assembly.

Abstract: A hydraulic brake system with anti-lock control comprises a main cylinder connected to a reservoir, wheel brakes connected to the main cylinder by way of brake lines, and a recirculating pump, a suction side of which is connected to the wheel brakes by way of a first suction line. By way of a second suction line, the pump is connected to a pressure source. To control the pressure medium supply from a precharging device or other pressure source to the suction side of the recirculating pump as a function of the pressure in the second suction line, a hydraulically actuated valve is used. The inlet of the valve is connected to the precharging device via the pressure source, the outlet of the valve is connected to the suction side of the recirculating pump. The output pressure of the valve acts in a valve closing direction such that the valve closes once a pressure on the suction side of the recirculating pump exceeds a certain value.

Abstract: The recirculating pumps of brake systems that are equipped with a precharging device or other pressure sources, the pressure of which at least temporarily reaches the suction side of the recirculating pump, are highly stressed and consequently subjected to premature wear by this pressure. Over time, this results in large leaks which may cause damage to the pump motors. Consequently, the invention proposes to control the pressure medium supply from the precharging device or other pressure source to the suction side of the recirculating pump as a function of the pressure in this connecting line.

Abstract: A seat valve for controlling pneumatic or hydraulic pressure between at least two pressure fluid channels (8, 8′) includes a valve closure member (5) connected to a magnetic armature (4), a spring for the basic positioning of the valve closure member (5) in relation to a valve seat (7) in the valve housing (6), a magnetic core and a valve coil for the translatory movement of the magnetic armature (4). A control channel (1), a tappet (2), a sleeve (2′), a rotating field winding (3), and an opening 3′) are provided to produce a rotary movement of the magnetic armature (4) and to transmit the rotary movement to the valve closure member (5) for the variable control of a pressure fluid passage.

Abstract: The present invention relates to a hydraulic assembly, which includes a housing and at least one cover closing the housing, wherein a retaining device is mounted on the cover for attachment of the hydraulic assembly to a stationary component.