Abstract: A jet and venturi tube arrangement is provided for a fuel delivery module. The arrangement includes a venturi tube 14 having an opening 15, an internal wall 24 and a central axis C. A jet 10? is provided that has an exit 22. The jet 10? is constructed and arranged to spray a stream 12 of fuel from the exit 22 into the opening 15 of the venturi tube 14 substantially along the central axis C. The jet 10? has surface features 20, near the exit, constructed and arranged to divert a portion 12? of the stream 12 of fuel so that the portion 12? contacts the internal wall 24 of the venturi tube 14 thereby limiting back flow of fuel through the opening of the venturi tube.

Abstract: Systems and methods for monitoring operation of a pump, including verifying operation or actions of a pump, are disclosed. A baseline profile for one or more parameters of a pump may be established. An operating profile may then be created by recording one or more values for the same set of parameters during subsequent operation of the pump. A value for a goodness of fit measure comparing the operating profile and baseline profile can be established. If the goodness of fit measure is insufficient, an alarm may be sent or another action taken, for example the pumping system may shut down, etc. An example goodness of fit measure is an R-squared measure.

Abstract: A method for determining the functional relationship of several pumps which are controllable in their rotational speed, in a hydraulic installation. At least one pump is activated with a changed rotational speed, and at least one functional relationship of the installation is determined from the hydraulic reactions. With a suitable selection of the control and detection of the hydraulic changes, one may determine the functional relationship of the complete installation.

Abstract: The present invention relates to a dynamic sealing system device for a submerged pump comprising at least one feed line running in towards the dynamic sealing system, with a first valve device arranged in the feed line and a second valve device arranged such that in an open position it opens a first bypass line that runs from a point on the feed line between the first valve device and the pump and a low-pressure source at the pump to reduce the pressure in a barrier fluid in the sealing system. The invention also comprises a method for reducing the barrier fluid pressure for a submerged pump.

Abstract: A fluid compression system includes a compressor, an electric motor including a stator and a rotor positioned adjacent to the stator, and a shaft coupled to the rotor to support the rotor for rotation and having a drive end and a non-drive end. A plurality of flow-inducing elements are integrally-formed as part of the shaft and is adapted to induce a flow of fluid from the non-drive end toward the drive end in response to rotation of the shaft.

Abstract: A method of controlling a hydraulic system having a variable displacement pump operatively coupled to an engine. The method includes detecting a speed of the engine, and determining a desired power value of the pump. The method also includes identifying an allowable power value that may be expended by the pump at the detected speed. The method also includes selecting a pump power value. The selected pump power value is the lower of the allowable power value and the desired power value. The method further includes adjusting the pump to deliver the selected pump power value.

Abstract: Providing a screw compressor 1 having a lubricating oil system, the compressor being provided with a plurality of radial bearings 5 and a plurality of thrust bearings 6, a rotor shaft 2a or 3a is supported rotation-freely by each bearing, wherein at least one radial bearing 5 or at least one thrust bearing is provided with a hole space 25 or 34 with a bottom, the hole space being bored in the radial bearing and the thrust bearing so that a temperature-detecting terminal 26 is inserted in the hole space 25 or 34; at least one penetrating hole 28 or 35 is provided at the casing wall 1c of a casing that houses the radial bearing 5, so that the outside of the casing communicates with a space s1 for inserting the radial bearing, through the penetrating hole, the space s1 28 or 35 being formed inside of the casing wall; the temperature-detecting terminal 26 together with a sheath tube 27 is led into the space s1 through the penetrating hole 28 or 35.

Abstract: A compressed-air compressor for producing compressed air for a compressed-air system of a vehicle includes a cylinder and a piston. The piston is arranged in the cylinder and divides the interior space of the cylinder into a compression chamber, which can be connected to the compressed-air system of the vehicle for the purpose of conveying compressed air, and a neutral chamber. The neutral chamber is charged with an auxiliary pressure such that the pressure in the neutral chamber is temporally on average higher than atmospheric pressure. The compressed air production using the piston/cylinder-type compressed-air compressor is improved such that the maximum value of the torque to be imparted for driving the compressor is reduced.

Abstract: A multichamber pressure-increasing device is comprised of a plurality of chambers disposed in series one inside the other, wherein the innermost chamber is configured so as to place objects or samples therein to subject them to ultra-high pressures. An external hydraulic pump pumps fluid into the outermost chamber while a plurality of elemental hydraulic motor pump systems (EHMPS) are mounted in each chamber for increasing the pressure from one chamber to the next one disposed more to the interior of the device through an iterative process, each EHMPS consisting of two cylinder-piston assemblies operatively joined together in such a way that both pistons extend or retract simultaneously within their respective cylinders, the motor part driving the pump part as pressurized fluid admitted into the motor cylinder is subsequently discharged so fluid admitted into the pumping part cylinder is compressed therein and impelled at a higher pressure into the succeeding chamber.

Abstract: An electric motor of an electric submersible pump is electrically isolated from a power conduit for diagnostic testing of the power conduit and wet connection components in place within a wellbore. The electric motor is electrically connected to the power conduit through a wet connection assembly having motor leads in electrical connection with a transfer contact and a receptacle assembly disposed on a tubing string having a supply contact electrically connected to the power conduit. Electric power flows through the power conduit, through the supply contact, through the transfer contact, and through the motor leads to the motor. The supply contact and the transfer contact are separated by a sliding sleeve that hydraulically inserts between the contacts, insulating the transfer contact and grounding the supply contact for testing. The contacts may also be separated by a relative rotation of the assemblies that grounds the supply contact for testing.

Abstract: A positive displacement pump is provided that includes a pump housing having a pump chamber; a plunger mounted in the pump housing for reciprocating motion in the pump chamber; a suction valve positioned to allow a fluid to enter the pump chamber upon movement of the plunger in a first direction; a discharge valve positioned to discharge the fluid from the pump chamber upon movement of the plunger in a second direction; and at least one sensor enclosed by the pump housing for measuring at least one pump condition parameter.

Abstract: A piston type pumping apparatus comprises a vertically oriented cylinder having a top and a bottom with a first aperture. There are first and second passageways for liquid in the cylinder at the top and bottom respectively thereof. A piston is reciprocatingly mounted within the cylinder and has an area against which pressurized fluid acts in the direction of movement of the piston. A hollow piston rod is connected to the piston and extends below the piston and slidably through the first aperture. There is a reload chamber below the cylinder. The piston rod extends slidably into the reload chamber and has a third passageway for liquid communicating thereto. A first one-way valve is located in the third passageway. There is also a fourth passageway that extends from the reload chamber to a source of liquid to be pumped and a second one-way valve therein.

Abstract: A flow-conditioning system includes a pump, process tubing coupling the pump to a source of multiple component process fluid, and an in-line flow-mixing device positioned in the process tubing upstream of the pump. A system includes a well disposed below a body of water and providing a source of multiple component fluid, a pump disposed in and exposed to the water, process tubing coupling the pump to the well, and an in-line flow-mixing device positioned in the process tubing upstream of the pump.

Abstract: A blower assembly for a leaf blower has a case, a motor, an impeller driven by the motor, and an axial fan driven by the motor. The axial fan and the impeller are connected to opposite ends of the motor. The case has an air inlet, an air outlet and an air channel communicating the air inlet with the air outlet. The impeller is disposed inside the air channel to move air through the air channel from the air inlet to the air outlet. The axial fan is arranged to generate an axial flow of air towards the motor to cool the motor.

Abstract: In one embodiment, a small-diameter opening (42b) is formed in the central portion of a valve element (42) included in a check valve (40) of a high pressure fuel pump (1). A needle valve (44) is provided integrally with a valve element (35a) of an electromagnetic spill valve (30), and the opening (42b) of the valve element (42) can be opened and closed with a tip portion of the needle valve (44). When the high pressure fuel pump (1) switches from the drive state to the stopped state, the needle valve (44) retreats from the opening (42b) of the valve element (42) in conjunction with the movement of the valve element (35a) of the electromagnetic spill valve 30, thus forming a micro gap.

Abstract: A compressor that generates compressed air by compressing raw air has a case section; a driving motor that is provided in the case section and that has an output shaft; head sections operated by the rotation of the output shaft of the driving motor and that suck and compress raw air to generate thereby compressed air; and a raw air intake section formed of a plurality of raw air intake holes for taking raw air into the case section and supplying the raw air to the head sections.

Abstract: A central flow double diaphragm pump controlled by an operating fluid distribution module with a pivoting sealing member and protruding wing, that pivots on a low friction seal. The pump also includes a central pump body having an inlet and discharge manifolds, and two pumped fluid chambers in the central pump body each including a pumped fluid chamber inlet port and outlet port; within each chamber the inlet port is positioned higher than the outlet port. Two suction check valves are located in the central body, close to the suction inlet, above the pump's shaft, and these valves' outlets connect directly to the pumped fluid chamber inlet ports. Two discharge check valves are located in the central pump body, close to the discharge outlet and below the shaft, and the pumped fluid chamber outlet ports connect directly to these valves' inlets. Removable access caps are included above the check valves.

Abstract: A fluid compressor 10 comprising a stator 22, having a bore shaped first chamber 26 and an annular second chamber 30, and a piston 18 comprising a central piston rod 36 having a first piston head 44 and a concentrically arranged cylindrical piston sleeve 38 having a second piston head 48. The stator 22 and piston 18 together define a first compression chamber 12, a second compression chamber 14 provided concentrically around the first chamber 12, and a third compression chamber 16 provided concentrically around the first chamber 12 and linearly with the second chamber 14. The compression chambers 12, 14, 16 are interconnected via intercooling conduits 72, 74. A hydraulic actuator 20 is coupled to the piston 18 by a hydraulic ram 82. During left to right movement of the piston 18 fluid enters the third chamber 16 and fluid is compressed in the second chamber 14.

Abstract: The pump is provided with a plurality of pumping chambers and electrically activatable valves. An elastic membrane is arranged in each pumping chamber and divides the same into a first and a second chamber section. Each valve is connected to the second chamber section of a pumping chamber. When a pressure drop is applied over the valve and the valve is activated (i.e. opened), the pressure in the second chamber section changes, which causes the membrane to move, which in turn leads to a change of the volumes of both chamber sections. This e.g. allows to pump well-defined amounts of fluid from the chamber sections to a drug dispensing device.

Abstract: A vehicle includes an engine and a liquid pump configured to pump liquid from a liquid intake system to an outlet. The vehicle further includes a pressure control system operably coupled to the engine via a communication connection, the pressure control system receiving a first signal from the engine representing engine speed. The pressure control system is configured to cause the liquid pump to change pumping pressure without changing the engine speed, and wherein the pressure control system is configured to cause the liquid pump to change pumping pressure without changing the engine speed when the pressure control system makes a determination relating to the engine speed.