A fuel supply device includes: a sub-tank to be fixed on a bottom of a fuel tank, the sub-tank temporarily storing fuel in the fuel tank, an upper side of the sub-tank having an opening; a bracket attached to an opening side of the sub-tank; an electric pump that pumps up the fuel in the sub-tank and supplies the fuel to outside of the sub-tank; and multiple fitting portions arranged on an outer edge of the bracket and to fix the bracket to the sub-tank by being fitted to a plurality of receiving portions arranged on the opening of the sub-tank.

The present disclosure relates to a hydraulic power pack arrangement that can be configured in multiple different mounting configurations. The hydraulic power pack arrangement can include a bracket assembly for mounting a hydraulic power pack core assembly and a hydraulic reservoir assembly at a mounting location such as a floor, wall, or ceiling of an aircraft.

A vibration isolating damper for securing a first structure to a second structure includes a primary isolator of elastomeric material configured to engage the first structure for securement thereto and including a tubular body and a shoulder adjacent to an axial end of the tubular body, the shoulder extending radially inwardly to partially close the axial end of the tubular body. The vibration isolating damper also includes a fastener having a rod portion extending through the tubular body of the primary isolator and configured for securement to the second structure; a rigid tube disposed about the rod portion of the fastener and extending through the tubular body of the primary isolator; and a coil spring disposed about the rigid tube and engaging the shoulder of the primary isolator within the tubular body.

A hydraulic unit includes an assembly with a hydrostatic positive displacement pump and an electric motor. The positive displacement pump includes a driving shaft configured to be driven by the electric motor. The hydraulic unit also includes an inert mass on which the assembly is rigidly mounted so as to minimize vibration of the assembly and reduce noise emission from the assembly.

Fracturing equipment includes: a plunger pump, a main motor and a noise reduction device. The plunger pump is used for pressurizing liquid. The main motor is connected to the plunger pump by transmission for providing driving force to the plunger pump. The noise reduction device is constructed as a cabin structure and covers outside the main motor and isolates the main motor from the plunger pump. With the fracturing equipment according to the present disclosure, the fracturing equipment is driven by the main motor with relatively low noise during operation. The noise reduction device isolates the main motor from the outside, which can effectively reduce the noise intensity transmitted to the outside during operation, thereby achieve the effect of noise reduction. In addition, the plunger pump is isolated from the main motor by the noise reduction device, thus realizing isolation of high-pressure dangerous areas and ensuring safe operation.

A compressor is disclosed. A compressor according to the present discloser includes a piston structure which has a guide member reciprocating inside a cylinder in an axial direction, and a magnet frame which supports a mover moving together with the piston structure, in which the piston structure includes the guide member, a mount member connected to the magnet frame, and an elastic member provided between the guide member and the mount member and capable of elastic deformation.

Disclosed is a compressor including a vibration attenuating member that fixes a driving assembly to be spaced apart from an inner circumferential face of a shell and reduces vibration or noise generated in the driving assembly.

A pump system may include a pump, a driveshaft, driving equipment, and a vibration dampening assembly configured to reduce pump-imposed high frequency/low amplitude and low frequency/high amplitude torsional vibrations. The pump may have an input shaft connected to the driveshaft. The driving equipment may include an output shaft having an output flange connected to the driveshaft. The driving equipment may be configured to rotate the driveshaft to rotate the input shaft of the pump therewith. The vibration dampening assembly may include one or more flywheels operably connected to the input shaft and configured to rotate therewith.

A condensate pump assembly for use in an air conditioning system, the condensate pump assembly comprising: a pump arranged in a housing to pump liquid from a liquid inlet to a liquid outlet; a liquid receptacle configured to receive liquid from the liquid inlet; and suspension means configured to suspend the pump from a bottom surface of the housing. The suspension means are configured to substantially eliminate vibrations being transmitted from the pump to the housing.

A pump device as may be used in a breast pump assembly including a pump configured to put fluid in motion, a housing accommodating the pump, at least one fluid transporting conduit connected to the pump, the at least one conduit extending between the pump and the housing, thereby connecting the pump to a position at the housing where the housing is provided with at least one opening for allowing fluid to pass, and a mounting arrangement for mounting the pump in the housing. The at least one conduit is part of the mounting arrangement and has flexible properties to reduce an extent to which vibrations of the pump are transferred to the housing through the mounting arrangement during operation of the device.