Abstract: An electric oil pump system allows the cooling of an electric oil pump (EOP) and an oil pump controller (OPU) to be performed efficiently in the vehicle equipped with the electric oil pump. An electric oil pump of the system includes a pumping part that is operated by power of a motor to suction and direct pressurized oil. An oil pump controller operates the electric oil pump. A water-cooled cooling apparatus cools the oil pump controller using coolant and an oil-cooled cooling apparatus cools the electric oil pump using oil. The coolant of the water-cooled cooling apparatus and the oil of the oil-cooled cooling apparatus pass through a heat exchanger and as the coolant and oil pass therethrough, heat exchange is achieved.

Abstract: A pump apparatus which can more accurately determine the occurrence of an abnormal vibration. The pump apparatus includes: a pump; an electric motor for driving the pump; an inverter as a speed changing means for the electric motor; a vibration detector for detecting at least one of a vibration of the pump, a vibration of the electric motor and a vibration of the inverter; and a controller for controlling the pump. The controller includes a storage unit for storing a measured vibration value measured by the vibration detector. The storage unit has a storage table which, when the rotational speed of the pump is increased stepwise to a predetermined rotational speed, stores the measured vibration value measured at each step.

Abstract: A pump that includes a body having a base and a top portion, wherein the base is configured to be anchored to the ground and the top portion is detachably connected to an upper plate in the body. The pump includes a handle assembly including a piston rod, handle bar, and cap that are detachably connected to each other by a fastener. The pump includes a tube positioned in the body. The tube slidably receives the piston rod and is connected to an air line. A hose is connected to the air line and extends from the body. The hose has a head configured to engage the nozzle of a tire. When the piston rod is moved downward within the tube, air is displaced from the tube and through the air line to the hose such that the head dispenses air.

Abstract: A variable displacement swash plate compressor includes a displacement control valve that is configured to change crank chamber pressure, and an opening adjusting valve that adjusts an amount of refrigerant sucked into a suction chamber. The opening adjusting valve includes a valve case, a first valve element, a second valve element, and an urging spring. The valve case has a valve seat on which the second valve element is seated. The valve seat regulates movement of the second valve element toward the first valve element. A sealing member is provided between an inner peripheral surface of the valve case that defines a second valve chamber and an outer peripheral surface of the second valve element to prevent refrigerant in the second valve chamber so that leakage between a bleed passage and a control passage is prevented.

Abstract: A motor/pump assembly for a brake system includes at least one fluid pump arranged in a pump housing, an electric motor having a motor shaft configured to drive the fluid pump, a control unit arranged on the pump housing and configured to set a current rotational speed and/or a current torque of the motor, and a sensor arrangement having a measured value transmitter arranged within the pump housing and a magnetic measured value pickup stationarily arranged in the control unit. The control unit is further configured to detect contactlessly a current rotational angle of the shaft via the sensor arrangement, and to evaluate the angle to control the motor. The transmitter, in accordance with a rotary motion of the shaft, is configured to influence at least one magnetic variable of a magnetic field detected by the pickup.

Abstract: A connection structure for a motor of an air compressor contains: a base, a cylinder, a motor, and a transmission mechanism. The base includes a first positioning orifice and a second positioning orifice. The cylinder includes an air storage seat. A small-diameter gear is inserted through the first positioning orifice to fit on the motor, a bearing housing is accommodated in the first positioning orifice, and the motor includes a magnetic coil. The transmission mechanism actuates a piston to move in the cylinder reciprocately so as to compress air. The magnetic coil includes a first segment and a second segment, and the base includes two symmetrical elongated plates which respectively have two hooks. The base further includes two symmetrical arcuate retainers.

Abstract: A non-chokable pump includes an impeller having vanes for delivering solids-containing media. At least a portion of the vanes include a vane section that branches from a vane extending from a hub region of the impeller. The vane section preferably has a curvature greater than the vane extending from the hub region.

Abstract: An actuation system for a resonant linear compressor (50), applied to cooling systems, the latter being particularly designed to operate at the electromechanical frequency of said compressor (50), so that the system will be capable of raising the maximum power supplied by the linear actuator, in conditions of overload of said cooling system. Additionally, an actuation method for a resonant linear compressor (50) is disclosed, the operation steps of which enable one to actuate the equipment at the electromechanical resonance frequency, as well as to control the actuation thereof in over load conditions.

Abstract: A swash plate compressor including a cylinder block accommodating a piston for compressing a refrigerant, a front housing coupled to the front of the cylinder block and having a crank chamber, a rear housing having a suction chamber, a discharge chamber and coupled to the rear of the cylinder block. The swash plate compressor includes a valve assembly including a valve plate inserted into the rear housing, a gasket inserted into the cylinder block, a suction plate inserted between the valve plate, the cylinder block, and a variable orifice module including a first orifice hole through which the refrigerant in the crank chamber passes, a second orifice hole communicating with the suction chamber to discharge the refrigerant passing through the first orifice hole to the suction chamber, and an intermediate passage interconnecting the first and second orifice holes, the first orifice hole having a variable reed, a degree of opening of which is varied depending on the pressure of the refrigerant.

Abstract: A subsea assembly comprising an electric subsea machine having an electric motor driving an operator, and a coolant circuit at least partially located in thermal contact with the electric motor, the coolant circuit including a cooling assembly located externally from the subsea machine, the cooling assembly comprising at least a heat transfer element, the subsea machine and the cooling assembly being supported by a common supporting frame; at least a part of the heat transfer element is integrated in the frame.

Abstract: An industrial ejector includes: a Laval nozzle in which a first channel which has a throat and along which a fluid flows in a first direction is formed; and a main body which is formed in a tubular shape, in which the Laval nozzle disposed therein is fixed to a part of an inner surface thereof, and in which a second channel is formed between the rest of the inner surface and the Laval nozzle. The second channel is disposed at a first side with respect to the first channel in a second direction perpendicular to the first direction. An opening is obliquely cut and formed in an end of the first channel at a downstream side and inclined toward the first side in the downstream direction and then toward the second channel.

Abstract: A peristaltic pump includes a casing having a bottom, cover and wall forming a pump chamber, a tube connecting a casing inlet to a casing outlet arranged within the pump chamber, and a displacement element having at least two displacement members. The tube is arranged between the casing wall and the displacement element in such a way that due to rotation of the rotor the displacement members roll on the tube so the tube is squashed together so that a medium to be conveyed which is in the tube is displaced in the direction of the casing outlet. The displacement element has a first part fixed to the rotor and a second part which can be reciprocated between an operative position and a change position.

Abstract: An aspirator for an evacuation assembly includes a duct defining a flow axis with an upstream portion and a downstream portion, a vane spanning the upstream portion of the duct, and a nozzle. The nozzle has an outlet, is supported by the vane, and is positioned within the upstream portion of the duct. The outlet is laterally offset from the flow axis and is axially overlapped by the vane to limit resistance to a primary gas flow entering the duct through the outlet of the nozzle. Evacuation assemblies are also described.

Abstract: An impeller designed for use in radial pumps. The impeller compensates for axial forces during pumping operations. The impeller utilizes vanes having 3D geometry which extend from the impeller intermediate plate eye to the external diameter of the intermediate plate. On the backside of the intermediate plate, the vanes define a plurality of hydraulic passages. The hub plate also includes a series of balancing holes.

Abstract: A piston pump assembly for a hydraulic vehicle brake system having an electric motor and, coaxially to that, a planetary gear, a ball-screw drive and a piston-cylinder unit, in which a piston is connected in a rotatably and axially fixed manner to a spindle of the ball-screw drive and guiding the piston in a rotatably fixed manner in the cylinder, so that the spindle (20) is retained in a rotatably fixed manner. Also, the planetary gear is mounted in a pot-shaped planetary-gear housing that is disposed on a ball bearing which is used for a rotational mounting of a spindle nut on a cylinder of the piston-cylinder unit.

Abstract: A fluid end assembly of a hydraulic fluid pump includes a housing having a first housing bore and a second housing bore offset axially from the first housing bore. A plate is fastened to the housing. The plate has a first plate bore axially aligned with the first housing bore and a second plate bore axially aligned with the second housing bore. A first removable valve cover closes the first housing bore and a second removable valve cover closes the second housing bore. A first retainer engages the first plate bore and abuts the first removable valve cover and a second retainer engages the second plate bore and abuts the second removable valve cover.

Abstract: A fuel supply device includes a surface level detection device that detects a surface level of fuel through use of a float. A supply main body is placed in a fuel tank through an insertion opening and supplies the fuel to an outside. A surface level detection unit, which includes the float, is rotatable relative to the supply main body, and a rotational range of the surface level detection unit is set to include at least an inserting direction of the supply main body. A distal end part of the surface level detection unit, which is furthermost from an imaginary rotational center axis in the surface level detection unit, is placed on an upper side of an imaginary plane, which includes the imaginary rotational center axis and a center of gravity of the surface level detection unit, in a rotational direction of the surface level detection unit.

Abstract: An airfoil includes a leading edge and a trailing edge. A first exterior wall extends between the leading edge and the trailing edge. A second exterior wall opposite the first exterior wall extends between the leading edge and the trailing edge. A first cavity is adjacent the first exterior wall and includes a central portion and at least one forward extending slot passage and at least one aft extending slot passage.

Abstract: A dual pumping fluid pump which significantly reduces vibration and noise generation. When a cam installed on a rotating shaft of a single electric motor is rotated, a pair of first and second diaphragms installed in connection to an eccentric shaft portion formed on both the left and right sides of the cam alternatingly rise and descend in opposite directions and cause first and second intake check valves and first and second discharge check valves provided on a fluid passage box integrally and connectedly installed on the top surface of a pump housing to open or close first and second intake holes and first and second discharge holes to admit fluid through a fluid inlet and simultaneously discharge fluid through a fluid outlet, so that the simultaneous effects of the intake pressure and discharge pressure of fluid causes pressure balancing to occur.

Abstract: A valve retainer assembly and pump including the same. In an embodiment, the valve retainer assembly includes a retainer configured to engage with a suction valve assembly and retain the suction valve assembly within a chamber of a fluid section of a reciprocating pump. The retainer includes a pair of engagement arms extending along a single arm axis, and a connecting member including a coupling aperture. In addition, the valve retainer assembly includes a keeper that further includes a keeper axis, and a connecting shaft. The connecting shaft of the keeper is received within the coupling aperture such that the keeper axis extends in a direction that is perpendicular to the arm axis.