Class / Patent application number | Description | Number of patent applications / Date published |
417271000 | Motor driven | 12 |
20080219861 | Cam Driven Piston Compressor - A cam driven piston compressor includes one or more cams powered by a motor, the cams being adapted to rotate through 360 degrees, and one or more cam followers, each of which is in contact with one of the cams. The compressor also includes one or more pistons wherein each of the pistons is attached to one of the cam followers, one or more cylinders wherein each of the cylinders encloses one of the pistons, and a compressor head in contact with the cylinders. | 09-11-2008 |
20080310972 | INTEGRATED HYDROSTATIC TRANSMISSION ASSEMBLY - A hydrostatic transmission mountable to a vehicle frame as a unit. The hydrostatic transmission has a nose cup to which a motor module is mounted. Passageways in an end block connect the pump element and motor module in a closed loop. The end block also has passageways for connecting a charge pump to the closed loop for supplying make-up flow thereto. An isolation plug is provided for separating flow between two intersecting passageways in the end block. | 12-18-2008 |
20090232667 | Axial compressor - This invention relates to fluid compression and fluid transfer mechanisms for an axial fluid displacement apparatus. More particularly, it relates to a configuration of a bearing supported wobble plate plus intake and discharge valve mechanisms for a reciprocating piston wobble plate-type refrigerant compressor suitable for use with high pressure CO | 09-17-2009 |
20100272584 | Fluid supplying device - A fluid supplying device comprises a reservoir configured to store a fluid and a conveying element disposed in or in fluid communication with a lower portion of the reservoir. The conveying element includes a rotatable shaft and a device configured to convey or move a fluid, e.g., a lubricant. A radial-piston pump having at least one radial-piston unit is in fluid communication with a fluid output of the conveying element. The pump comprises a shaft part rotatably coupled with the shaft of the conveying element. A motor drives both the conveying element and the pump. The motor, the conveying element shaft and the pump are sequentially arranged one after another in the axial direction of the shaft. | 10-28-2010 |
20100290927 | PUMP ASSEMBLY FOR HIGH PRESSURE CLEANERS - An improved pump assembly | 11-18-2010 |
20110206541 | METERING PUMP DEVICE - A metering pump device capable of performing a fixed amount of discharge with a high accuracy even if a pressure difference occurs between outflow side valves. In the metering pump device, two reciprocating pump devices are used. The end and start of the discharge period of one reciprocating pump device are overlapped with the start and end of the discharge period of the other reciprocating pump device. After the inhalation operation and before the discharge period, both the inflow side valves and the outflow side valves are closed to perform a correction operation for eliminating the pressure difference by increasing or decreasing the internal volumes of the pump chambers. | 08-25-2011 |
20120020813 | MICRO COMPRESSOR - A compressor is provided. The compressor includes a housing, a valve plate, a cylinder block, piston units, a cam element, a driving shaft and a motor. The valve plate is fixed to one end of the housing. The cylinder block is rotatable relative to the valve plate and has cylinder bores disposed in a circumferential direction. A portion of the cylinder block is received in the valve plate. The piston units are disposed the cylinder bores. The cam element is fixed to the housing and is in contact with one end of the piston unit. The cam element has an inclined cam surface. One end of the driving shaft is coupled to the cylinder block. The motor is fixed to an opposite end of the housing, while a rotating shaft is coupled to an opposite end of the driving shaft. | 01-26-2012 |
20120134855 | Synchronized Hydraulic Power Module - A hydraulic power module is provided with a plurality of hydraulic actuators. A piston of each of the hydraulic actuators is coupled with a drive plate and a screw is rotatably coupled with the drive plate. Rotation of the screw longitudinally displaces the drive plate to simultaneously actuate each of the hydraulic actuators. A second hydraulic power module may be coupled with the hydraulic power module, such that rotation of the screw also drives the screw of the second hydraulic power module. | 05-31-2012 |
20130142675 | FLUID CONTROL DEVICE - In a fluid control device, a valve body is prevented from being pressed forcefully against a valve seat or the like, and an excessive load is prevented from acting on a motor. A flow rate adjustment device includes a first engagement portion, and a second engagement portion that is capable of moving relative to the first engagement portion and transmitting and receiving rotary force. The flow rate adjustment device includes a valve body that adjusts an opening of a flow passage, and a rod that is coupled to the valve body. The flow rate adjustment device further includes a male screw portion and a female screw portion that are intermeshed so as to be fed relative to each other in the axial direction, a projecting portion that restricts movement of the second engagement portion, and a first cylinder that restricts movement of the rod. | 06-06-2013 |
20130177454 | Reciprocating Compressor or Pump and a Portable Tool Powering System Including a Reciprocating Compressor - A reciprocating compressor or pump features a manifold arranged not only to define a hollow interior for receiving fluid discharged from a plurality of cylinders but also to define a base or frame on which the cylinders are carried. Unique valves formed in part by flexible material reduces the likelihood of fatigue and increases efficiency by retaining less heat relative to conventional reed valves. A compressor or pump mounted at an end of a handle extending parallel to a motor housing likewise extending from the compressor or pump provides an easy to carry portable assembly. A fan mounted between a motor and a compressor pulls air through the compressor inlet to both cool the motor and feed the compressor. A portable tool system powers both pneumatic and electric tools. Connecting rod structures for radial compressors or pumps provide improved strength and easier assembly. | 07-11-2013 |
20150093265 | DRIVESHAFT LUBRICATION - An apparatus and method are disclosed for transmitting drive between a first and at least one further component. The apparatus includes an elongate shaft element extending along a respective longitudinal axis and comprising a first and further shaft region, each of which comprises a substantially cylindrical outer surface extending from a respective first and further side of a cam body region. The apparatus also includes a fluid communication pathway extending within the shaft element from a first end region of the shaft element to at least one outlet aperture in an outer surface of the first cylindrical region. | 04-02-2015 |
20150330376 | SWASH PLATE TYPE COMPRESSOR - [Problem] In a swash plate of a swash plate type compressor, adhesion resistance of the swash plate will be greatly improved as compared with that achieved in the prior art by optimizing the average aspect ratio and the average particle size of the fluororesin particles contained in a lubrication film provided on the swash plate. [Solution] In a swash plate of a swash plate type compressor, a lubrication film composed of a binder resin, the fluororesin particles having an average aspect ratio of 1 to 1.5 and an average particle size of 7 to 13 micron-meters, and the graphite is provided at a sliding portion against a shoe of the swash plate. | 11-19-2015 |