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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.
  
07/10/2014 > 3 patent applications in 3 patent subcategories.

20140193283 - Gas exhaust pump system and gas exhaust method: There is provided a gas exhaust pump system capable of suppressing the inclusion of a seal gas into a process gas. The gas exhaust pump system has a main and sub pumps. The main pump has a screw rotor, a rotating shaft, a holding unit, a lubricating oil supply path,... Agent: Tohoku University

20140193284 - Air regulator, in particular for screw compressors: An air regulator for compressor, in particular for a screw compressor, of the type that has an oil separator device comprising a pre-separator, is provided in a regulator housing containing a valve element which is spring-loaded on one side and can be actuated by means of a piston arrangement. A... Agent: Rotorcomp Verdichter Gmbh

20140193285 - Optimized helix angle rotors for roots-style supercharger: A Roots-type blower has first and second meshed, lobed rotors disposed in first and second chambers of a housing. Each lobe has first and second axially facing end surfaces defining a twist angle that is a function, at least partially, of the number of lobes on each rotor, and each... Agent: Eaton Corporation

  
07/03/2014 > 1 patent applications in 1 patent subcategories.

20140186204 - Rotary piston engine including a piston assembly, vehicle including the rotary piston engine and a manufacturing method for the piston assembly: A piston assembly is disclosed. In one aspect, the piston assembly includes a rotary piston, wherein the rotary piston comprises a first axis of rotation, a central bore having bore axis and at least two curved first constraint surfaces, and wherein the bore axis substantially corresponds to the first axis... Agent: Avl List Gmbh

  
06/26/2014 > 12 patent applications in 9 patent subcategories.

20140178228 - Scroll compressor having a first and second oldham couplings: This scroll compressor includes first and second fixed scroll members, first and second orbiting scroll members, a first Oldham coupling provided between the first orbiting scroll member and the first fixed scroll member and configured to prevent rotation of the first orbiting scroll member with respect to the first fixed... Agent:

20140178229 - Scroll compressor having first and second oldham couplings: This scroll compressor includes a first fixed scroll member, an orbiting scroll arrangement including a first orbiting scroll member, a first Oldham coupling provided between the first orbiting scroll member and the first fixed scroll member and configured to prevent rotation of the first orbiting scroll member with respect to... Agent:

20140178230 - Pump: A pump (1, 10) having a housing (15) with a suction-side fluid inlet (4) and with a pressure-side fluid outlet (5), having a first pump unit (2, 11) and having a second pump unit (3, 12), the first pump unit (2,11) being connected hydraulically in parallel with respect to the... Agent: Dr. Ing. H.c. F. Porsche Aktiengesellschaft

20140178231 - Pump: A pump (1) having a housing (15) with a suction-side fluid inlet (4) and with a pressure-side fluid outlet (5), having a first pump unit (2, 11) and having a second pump unit (3, 12), the first pump unit being connected hydraulically in parallel with respect to the second pump... Agent: Dr. Ing. H.c. F. Porsche Aktiengesellschaft

20140178232 - Scroll compressor: A scroll compressor includes a housing having therein a discharge pressure region, a compression pressure region and a suction pressure region; a fixed scroll to form a discharge chamber as the discharge pressure region; and a movable scroll cooperating with the fixed scroll to form a compression chamber as the... Agent: Kabushiki Kaisha Toyota Jidoshokki

20140178233 - Oil pump rotor: Provided is an oil pump rotor capable of improving a volume efficiency and a quietness. When a diameter of a base circle bi of an inner rotor is Φ bi; a diameter of a first outer rolling circle Di is Φ Di; a diameter of a first inner rolling circle... Agent:

20140178234 - Internal rotor-type fluid machine: An internal rotor-type fluid machine includes a rotary shaft, a rotor which rotates together with the rotary shaft, a support portion which is provided on the rotary shaft or the rotor, and which supports the rotary shaft to be tiltable with respect to the rotor, and a pressure chamber inner... Agent: Denso Corporation

20140178235 - Electroformed stator tube for a progressing cavity apparatus: A method for use in producing a stator for a progressing cavity apparatus which includes the use of electroforming to produce the stator tube. A stator tube for a progressing cavity apparatus which is produced using electroforming and a stator for a progressing cavity apparatus which includes a stator tube... Agent: Halliburton Energy Services, Inc.

20140178237 - Heat engine with linear actuators: The present invention relates to a heat engine having shafts with gears, position gears and a plurality of actuators. Energy is harnessed from the first shaft as it rotates. The second shaft can be coupled to the first shaft to transfer energy from the second shaft to the first shaft.... Agent:

20140178236 - Rotary pump and brake device having the same: A rotary pump includes a first side plate and a second side plate between which an outer rotor and an inner rotor are arranged. The second side plate has a concave portion on a surface adjacent to a maximum gap portion relative to a drive shaft. The concave portion is... Agent: Nippon Soken, Inc.

20140178238 - Pump, pump system and method for pumping a medium: The invention relates to a pump, a pump system and a method for pumping a medium. The pump for pumping medium comprises an inlet, an outlet, a drivable spindle and at least two follower spindles, wherein the drivable spindle and the at least two follower spindles are provided at a... Agent: J.g.m. Van Heck Beheer B.v.

20140178239 - Vane pump: A vane pump includes a housing, a cam ring, a rotor, a plurality of vanes that forms a plurality of pump chambers, a side plate constituting a portion of an intake port, an intermediate plate axially adjacent to the housing and the side plate, and a cover member. A portion... Agent: Jtekt Corporation

  
06/19/2014 > 5 patent applications in 5 patent subcategories.

20140170007 - Scroll compressor assembly having oil distribution and support feature: A horizontal scroll compressor assembly for compressing a working fluid and lubricated with an oil, including a housing having an axis, an interior surface, and a suction sump for collected oil located in the suction plenum, and a compression mechanism including an orbital scroll member having a thrust surface, the... Agent: Delphi Technologies, Inc.

20140170008 - Variable displacement pump: Variable displacement oil pump for supplying oil to an internal combustion engine. Included is a cam ring having an inner peripheral section for accommodating the pump element thereinside, and an outer peripheral section having a swinging movement fulcrum. A control device for changeover controlling supply of a discharge pressure to... Agent: Hitachi Automotive Systems, Ltd.

20140170009 - Scroll liquid pump: An orbiting scroll having three sets of wraps is combined on a fixed scroll having three sets of wraps integral to a frame facing each other. The orbiting scroll is adhered on the fixed scroll by the discharge pressure acted to a part of the backside of the orbiting scroll.... Agent: Richstone Limited

20140170010 - Vane rotary compressor: The present invention relates to a vane rotary compressor in which, while a rotor is rotating, the volume of a compressing chamber is reduced and a fluid such as a refrigerant is compressed. The vane rotary compressor according to one embodiment of the present invention is provided with the compressing... Agent: Halla Visteon Climate Control Corp.

20140170011 - Bearing/gearing section for a pdm rotor/stator: A moving or progressive cavity motor or pump is disclosed, the motor including a rotor and a stator, the stator having one or more inserts or gearing sections to limit a lateral movement of the rotor relative to the stator. In some embodiments, the motor or pump may include a... Agent: Schlumberger Technology Corporation

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