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Rotary expansible chamber devices

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
  
04/16/2015 > 2 patent applications in 2 patent subcategories.

20150104342 - Scroll-type compressor: The orbiting base plate 61 has a compression side surface and a back pressure chamber side surface. The gas passage 64 has an opening 641 in the compression side surface of the orbiting base plate 61 between portions of the orbiting spiral wall 62 that face each other, and the... Agent: Kabushiki Kaisha Toyota Jidoshokki

20150104343 - Balance shaft module having variable displacement oil pump: A balance shaft module having a variable capacity hydraulic pump may include a first balance shaft that receives torque from an engine and a first unbalance mass is formed, a second balance shaft that receives torque from the first balance shaft through a connection gear, and a hydraulic pump that... Agent: Hyundai Motor Company

  
04/09/2015 > 3 patent applications in 3 patent subcategories.

20150098851 - Rotary expansible chamber devices having adjustable arcs of rotation, and systems incorporating the same: Rotary expansible chamber (REC) devices having one or more working-fluid ports that are adjustable, for example, in size or location. In some embodiments, the variable port mechanisms can be used to control any one or more of a plurality of operating parameters of a REC device independently of one or... Agent:

20150098852 - Scroll compressor: Provided are a scroll compressor and an air conditioner including the same. The scroll compressor includes a motor, a driving shaft, a main frame, a fixed scroll, an orbiting scroll, a suction, a first inflow part disposed on one side of the fixed scroll to inject the refrigerant into the... Agent: Lg Electronics Inc.

20150098853 - Screw-type positive displacement machine: A screw-type positive displacement machine includes a housing with a first rotor and a second rotor which are mounted to rotate in the housing and which are driven in directions which are the opposite of one another. The positive displacement machine has a first motor and a second motor arranged... Agent:

  
04/02/2015 > 6 patent applications in 6 patent subcategories.

20150093273 - Rotary compressors with variable speed and volume control: Systems and methods are used to control operation of a rotary compressor of a refrigeration system to improve efficiency by varying the volume ratio and the speed of the compressor in response to current operating and load conditions. The volume of the axial and/or radial discharge ports of the compressor... Agent:

20150093274 - Powder metal scrolls with modified tip designs: Scroll members for scroll compressors made from one or more near-net shaped powder metal processes, either wholly or partially fabricated together from sections. In certain variations, the involute scroll portion of the scroll member has a modified terminal end region. The terminal end region may include an as-sintered coupling feature... Agent:

20150093275 - Scroll type fluid machine: r

20150093276 - Scroll type fluid machine: A scroll type fluid machine, for improving a dimensional accuracy with easy working, includes a fixed scroll, an orbiting scroll arranged so as to oppose to the fixed scroll and executing an orbiting motion, a driving shaft driving the orbiting scroll, an eccentric shaft decentered from the driving shaft and... Agent:

20150093277 - Submersible pump assembly for use in a borehole: A submersible pump assembly for use in a borehole, including a screw pump and/or an eccentric screw pump with a longitudinal axis. The submersible assembly further includes a drive and a bearing arrangement for taking up and diverting the axial and/or radial forces arising during the operation of the screw... Agent:

20150093278 - Rotary-piston engine: The present invention relates to an engine or pump called rotary piston engine or pump, comprising a shape of revolution F relative to a delta axis, and rotatably movable about said delta axis in relation to an envelope V, and n cavities distributed over the perimeter of F. In each... Agent:

  
03/26/2015 > 5 patent applications in 5 patent subcategories.

20150086403 - Internal-gear pump and hydraulic circuit for a motor vehicle drivetrain: An internal-gear pump has a housing which has a first fluid port and a second fluid port. An inner rotor is mounted in the housing so as to be rotatable about an inner rotor axis and has an external toothing. An outer rotor is rotatable in the housing about an... Agent:

20150086404 - Horizontal type scroll compressor: A horizontal type scroll compressor includes a motor housing with a driving motor therein, a main scroll coupled to one side of the motor housing and having a fixed wrap for forming compression chambers, an orbiting scroll having an orbiting wrap and coupled to a crankshaft inserted through the main... Agent:

20150086405 - Electric oil pump: An electric oil pump includes a rotor driven to rotate by a motor and a pump body having a pump chamber accommodating the rotor, an intake port for introducing oil into the pump chamber according to rotation of the rotor, a discharge port for discharging oil from the pump chamber... Agent: Aisin Aw Co., Ltd.

20150086406 - Reduced noise screw machines: A reduced noise screw expander is described, which comprises a main rotor and a gate rotor each having an ‘N’ profile. The rotors are designed so that the torque on the gate rotor caused by pressure forces is in the same direction as the torque on the gate rotor caused... Agent:

20150086407 - Rotary piston engine which acts as a pump, condenser or motor for a fluid: The invention relates to a rotary piston engine (2) which operates as a pump, condenser or motor for a liquid or gaseous medium. The rotary piston engine (2) has a first gear (4) having a first central axis (I), a second gear (6) arranged opposite the first gear (4) and... Agent: Robert Bosch Gmbh

Previous industry: Pumps
Next industry: Powder metallurgy processes


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