Abstract: A compressor includes a motor, a drive shaft driven by the motor and connected thereto, a crank mechanism connected to the drive shaft, at least one compressed-air generation apparatus that is driven by the crank mechanism and is designed to generate compressed air, a crankcase that has an inner chamber wall in the shape of a hollow body, which receives the drive shaft at least in portions, an outer chamber wall that is spaced apart from the inner chamber wall radially with respect to the drive shaft, and a dividing wall, and a compressed-air storage container that is designed to receive compressed air generated by the compressed-air generation apparatus. The compressed-air storage container is formed by the inner chamber wall, the outer chamber wall, the end wall and the dividing wall.

Abstract: [Problem] To provide a relief device for an oil circuit of an engine provided with an oil pressure relief valve and a temperature-sensitive relief valve, with which it is possible for oil to be relieved (expelled) at the intended pressure regardless of the oil temperature, and with which it is possible to simplify the configuration. [Solution] The relief device comprises an oil pump (9), an upstream channel (61) provided from a discharge side of the oil pump (9) to an engine (E), an oil pressure relief valve (A) for relieving oil due to the valve body being moved by oil pressure, and a temperature-sensitive relief valve (B) for relieving oil by sensing the oil temperature and continuously opening and closing. The oil pressure relief valve (A) and the temperature-sensitive relief valve (B) are arranged in parallel in the upstream channel (61).

Abstract: An air compressor apparatus is disclosed that includes an air tank. A first compressor assembly can be fluidly coupled to the air tank, the first compressor assembly including a first head unloader valve. A second compressor assembly can be fluidly coupled to the air tank, the second compressor assembly including a second head unloader valve. A control unit can be electrically coupled to the first and second compressor assemblies, the control unit operable to control the operation of the first and second compressor assemblies. During startup, the first and second air compressor assemblies can be configured to draw less than 20 amps of current combined from a single 120 volt power source. The first and second compressor assemblies can each be dual piston compressor assemblies.

Abstract: A sender assembly that has a compact state, which may allow a pump assembly including the sender assembly to be easily inserted into an opening of a fluid tank. For example, the pump assembly may be insertable into the opening of the fluid tank while a longitudinal axis of the pump assembly remains coaxial with the opening. When in the compact state a rotatable arm and a float of the sender assembly may be entirely within or deformable to be within a predetermined envelope that has a radial extent less than the opening of the fluid tank to allow the sender assembly to be inserted straight into the opening. The predetermined envelope may be coaxial with the longitudinal axis and have a cross-section transverse to the longitudinal axis that matches the opening of the tank.

Abstract: Venturi devices and systems incorporating the same are disclosed. The Venturi devices include a lower body defining a passageway having a motive section and a discharge section spaced a distance apart from one another to define a first Venturi gap and a second Venturi gap downstream of the first Venturi gap at a position that divides the discharge section into a first portion between the first and second Venturi gaps and a second portion leading away from the second Venturi gap, and include an upper body defining a suction passageway in fluid communication with both the first and second Venturi gaps. The motive section and the discharge section converge toward the first Venturi gap.

Abstract: An electric compressor and a refrigeration device having the same are provided. The electric compressor includes: an electric motor having a stator and a rotor; a compressing mechanism having an eccentric shaft rotatably and slidably connected to the rotor and defining a compressing chamber therein, the compressing chamber being configured to perform a compression by the eccentric shaft; and a torque damping device configured to connect the rotor with the eccentric shaft, in which during the compression of the compressing chamber, a difference between a rotation angle of the eccentric shaft and a rotation angle of the rotor is a phase angle which is increased and decreased.

Abstract: A backer for a reed valve has: a first surface for engaging the valve reed; a second surface opposite the first surface; a base portion for mounting to a compressor housing; a distal portion for engaging a distal portion of the reed; and at least one trunk connecting the base portion to the distal portion. The first surface is transversely convex along a portion of the trunk. The trunk is relatively wider near the base portion than near the distal portion.

Abstract: A piezoelectric driving device includes: a substrate including a fixed portion, and a vibrating body portion which is provided with a piezoelectric element and is supported by the fixed portion; and a contact portion which comes into contact with a driven body, and transmits movement of the vibrating body portion to the driven body, the contact portion is provided at an end portion in the longitudinal direction of the vibrating body portion, and a difference between a distance between the end portion when the contact portion is not pressed against the driven body and a tip end of the contact portion, and a distance between the end portion when the contact portion is pressed against the driven body and the tip end, is smaller than a total amplitude in the longitudinal direction in a case where the vibrating body portion is driven.

Abstract: Embodiments to help detect operation conditions of a compressor of a TRU in real time by a genset are disclosed. The operation conditions of the compressor can be determined by monitoring a parameter pattern of the genset, such as value changes of a horsepower, a torque, an exhaust temperature, fuel consumption and/or a RPM of a prime mover of the genset, or a current drawn from a generator of the genset, over a period of time. In one embodiment, when a scroll compressor is used in the TRU, the scroll compressor may start a periodical load/unload duty cycle when the TRU reaches its setpoint. The periodical load/unload duty cycle of the scroll compressor can be detected based on a corresponding fluctuation pattern in genset parameters. When this periodically fluctuating pattern of ECU parameters and/or current drawn is detected, the prime mover can be switched to a low operation speed.

Abstract: A pump in desalination systems has four cylinders, each having a double acting piston. Each cylinder and piston defines a feed chamber and a recovery chamber. The pistons connect to a common drive. The connection to the common drive is such that the pistons reciprocate in a sequence equally spaced in time. Reciprocating valving for each piston is driven by the common drive to be 90 degrees out of phase with the respective piston. The valving connects the recovery chamber alternately to an inlet manifold for an intake stroke of the piston relative to the recovery chamber, and to an outlet manifold for a discharge stroke of the piston relative to the recovery chamber. A brief period of closure coincides with top dead centre and bottom dead centre of the piston, during which the recovery chamber is blocked off from both the inlet and outlet manifolds. The reciprocating valving is midway between its top dead centre and bottom dead centre during the period of closure.

Abstract: An automotive electric liquid pump includes a pump housing comprising a first longitudinal end and a second longitudinal end, a rotor which defines a longitudinal rotor axis, a pump chamber inlet, a pump chamber outlet, an electric motor, a power electronics chamber, a pump chamber, and a separation wall. The electric motor comprises stator coils arranged at the first longitudinal end. The electric motor drives a pump rotor. The power electronics chamber comprises power semiconductors to drive the stator coils. The power electronics chamber is arranged at the second longitudinal end. The pump chamber is configured to have the pump rotor driven by the electric motor rotate therein so as to pump a liquid from the pump chamber inlet to the pump chamber outlet. The separation wall is arranged in a transversal plane. The separating wall separates the pump chamber from the power electronics chamber.

Abstract: A variable turbine geometry may include guide blades mounted rotatably in a blade carrier via one blade bearing pin for each guide blade, a blade lever arranged at an end of the blade bearing pin that faces away from the respective guide blade, and an articulated lever for a simultaneous adjustment of the guide blades via an adjusting ring arranged between two adjacent blade levers. The articulated lever may be provided with a stop contour, and when one of a maximum flow position or a minimum flow position is reached, the stop contour may lie against one of the two adjacent blade levers to define the one of the maximum flow position or the minimum flow position.

Abstract: A high-pressure fuel pump (10) includes a plunger (11), a pump housing (12), an intake valve (13), a discharge passage (14), a fuel seal member (18), and a fuel inlet conduit (34). The pump housing (12) includes a fuel pressurizing chamber (23), an intake passage (24a), a discharge passage (24b), a cylinder housing member (21), a cover member (31) that covers the cylinder housing member (21), and an intake gallery chamber (12g). The fuel inlet conduit (34) is connected to the cover member (31) and configured to introduce fuel into the intake gallery chamber (12g) from outside the cover member (31). The pump housing (12) includes a return passage (33e) that communicates the intake gallery chamber (12g) with a space surrounded by the plunger (11), the cylinder housing member (21), and the fuel seal member (18). A first end portion of the return passage (33e) on the intake gallery chamber (12g) side is positioned on an opposite side of the cylinder housing member (21) from the fuel inlet conduit (34).

Abstract: An adjusting device for an axial piston machine includes an actuating piston that delimits an actuating space configured to be connected to a control oil source or a control oil drain via a control valve. A control piston of the control valve is loaded firstly by a control spring and secondly by a spring arrangement that is also in active engagement with the actuating piston.

Abstract: An installation member and a peristaltic pump are provided that allow work of attachment and work of detachment of a flexible tube to be peristaltic to and from a stator to be performed more easily and smoothly. An installation member that is to be detachably attached to a peristaltic pump including: a stator including an attachment recessed portion, in which a flexible tube to be peristaltic, is attached; a rotor that is rotatably driven in the attachment recessed portion; and a roller that causes the fluid to flow by imparting peristaltic motion to the flexible tube to be peristaltic attached to the attachment recessed portion in a longitudinal direction in association with rotation of the rotor while compressing the flexible tube to be peristaltic in a radial direction.

Abstract: A plunger pump fluid end housing assembly comprising: a fluid end housing, multiple plungers, a single in-line suction valve and seat corresponding with each said plunger, a discharge valve and seat corresponding with each said plunger; wherein axis of said suction valve and seat are parallel with said plunger, and the suction manifold is positioned to feed the fluid chamber opposite the power end of the fluid end. Plunger chamber of said fluid end housing is square or rectangular in cross section with large fillets at corners and flats between said fillets. Said flats are approximately equal in width to radii of said fillets.

Abstract: A peristaltic pump comprises a tube to transport a material in a transport direction and one or more piezoelements, which are configured to cause a squeezing of the tube. Furthermore, a method of transporting material comprises the step of successively actuating the piezoelements along the transport direction of the material and thereby causing a squeezing of the tube.

Abstract: A submersible well pump assembly has upper and lower seal sections connected between the pump and a motor. The seal sections have drive shafts with thrust runners that engage thrust bearing bases. The upper drive shaft will undergo a limited amount of downward movement toward the lower drive shaft in response to wear of the upper thrust bearing base. A spring between ends of the drive shafts transfers a portion of the down thrust on the upper drive shaft to the lower drive shaft prior to the limited amount of downward movement of the upper drive shaft toward the lower drive shaft being reached. A rigid stop member in the coupling transfers down thrust directly from the upper drive shaft to the lower drive shaft, bypassing the spring, only after the limited amount of downward movement of the upper drive shaft toward the lower drive shaft has been reached.

Abstract: An energy-storing-type high-pressure electric fuel pump includes an electromagnetic driving apparatus and a plunger sleeve cylinder component. The plunger sleeve cylinder component includes a high-pressure volume, a plunger sleeve having a plunger hole, and a plunger capable of sliding within the plunger hole. A clearance volume of the plunger in the plunger hole is a high-pressure fuel chamber. A clearance volume between the electromagnetic driving apparatus and the plunger sleeve cylinder component forms a low-pressure fuel chamber. Under the action of the electromagnetic driving apparatus, the plunger sleeve cylinder component sucks a fuel in the low-pressure fuel chamber into the high-pressure fuel chamber and pressure-feeds the fuel into the high-pressure volume. The electromagnetic driving apparatus includes an energy storage apparatus, a movable part, and a still part.

Abstract: An annular balance adjusting device (50) is included in the clamping region of a turbocharger (1) rotating assembly. The annular balance adjusting device (50) includes an annular member (51, 61) having a non-uniform weight distribution. By setting the rotational orientation of the annular member (51, 61) relative to the rotating assembly ((not labeled)), imbalance of the rotating assembly can be addressed. The annular balance adjusting device (50) can be used to correct the imbalance of the rotating assembly, thereby reducing turbocharger (1) vibration and increasing turbocharger (1) durability.