Rotary expansible chamber devices inventions 08/07

20070201996 - Motor-compressor unit mounting arrangement for compressors: A method of assembling a compressor, including assembling, first as a subassembly external of the compressor housing, portions of the motor-compressor unit, including a crankcase, mount brackets, stator, outboard bearing assembly, and drive shaft. Thereafter, the motor-compressor unit subassembly is inserted into a first end of the housing, and the... Agent: Baker & Daniels LLP 111 E. Wayne Street

20070201997 - Scroll compressor: According to the present invention, an oil supply passage is formed in a suction space of a fixed scroll part, and an oil collision part is provided in the suction space. The oil collision part is provided in the suction space, an amount of oil to be supplied is controlled,... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP Kratz, Quintos & Hanson, LLP

20070201998 - Rotary working machine provided with an assembly of working chambers with periodically variable volume, in particular a compressor: Rotary working machine provided with an assembly of working chambers with periodically variable volume, in particular a compressor, consisting of a stator with a controlling cam and a surrounding cylindrical rotator, with which are connected working elements, rotating together with it, driven by the cam and forming, together with an... Agent: Brinks Hofer Gilson & Lione

20070201999 - Heat pump system, method for adjusting temperature of lubricating water in heat pump system, and method for operating heat pump system: A heat pump system, a method for adjusting a temperature of lubricating water in a heat pump system, and a method for operating a heat pump system, which suppress boiling of lubricating water for bearings and thereby minimize the deterioration in reliability of the bearings. A heat pump system comprising... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20070196226 - Scroll fluid machine: A scroll fluid machine comprises a driving shaft having an eccentric axial portion at one end; a fixed scroll having a fixed wrap; and an orbiting scroll having an orbiting wrap and rotatably mounted to the eccentric axial portion of the driving shaft. A gas introduced through an inlet on... Agent: Davis & Bujold, P.l.l.c.

20070196227 - Rotary expander: Two rotary mechanism parts (70, 80) are provided in a rotary expander (60). The first rotary mechanism part (70) is smaller in displacement volume than the second rotary mechanism part (80). A first low-pressure chamber (74) of the first rotary mechanism part (70) and a second high-pressure chamber (83) of... Agent: Birch Stewart Kolasch & Birch

20070196228 - Dry pumps: A screw pump comprises a pair of rotors (92, 94) each carrying an external screw thread (96, 98), the pair of rotors being rotatably mounted in a stator (72) and arranged such that, in operation, the screw threads of the rotors intermesh as the rotors rotate in opposing directions. Means... Agent: The Boc Group, Inc.

20070196229 - Gear pump for pumping abrasive well fluid: A gear pump is configured for pumping abrasive fluids from a well. The gear pump includes an electrical motor that is sealed within a motor housing and submersed with the pump. The gear pump has a drive shaft that rotates a drive member, which in turn rotates a driven gear.... Agent: James E. Bradley

20070189912 - Advanced scroll compressor, vacuum pump, and expander: Modifications of a scroll compressor provide a bellows suitable for liquid cooling and a plunger actuated seal for the scroll tips of various equipment. A bellows spans the fixed and the orbiting scrolls and hermetically seals the scroll device. Using two bellows, the present invention allows for liquid cooling of... Agent: Paul M. Denk

20070189913 - Rotary engine with improved seal assembly: Corner seal sockets (26) are formed at the end of apex seal slots (58) formed in a rotor (10). A twisted split washer spring (70) is positioned in each socket (26) between the base wall (28) of the socket (26) and the inner end of the corner seal (16). The... Agent: Barnard Intellectual Property Law, Inc.

20070189914 - Rotary engine seal assembly: Corner seal sockets (26) are formed at the end of apex seal slots (58) formed in a rotor (10). A twisted split washer spring (70) is positioned in each socket (26) between the base wall (28) of the socket (26) and the inner end of the corner seal (16). The... Agent: Delbert J. Barnard

20070183914 - Suction baffle for scroll compressors: A scroll compressor including a hermetic housing with a motor-compressor unit disposed therein, including fixed and orbiting scrolls. The fixed scroll defines perpendicular axial and radial directions, and includes an outer wall having a suction inlet facing substantially in the radial direction. A baffle member is associated with the suction... Agent: Baker & Daniels LLP 111 E. Wayne Street

20070183915 - Compressor with fluid injection system: A scroll compressor includes a housing, a non-orbiting scroll member including a first spiral wrap, and an orbiting scroll member including a second spiral wrap. The first and second spiral wraps are interleaved to define at least one moving fluid pocket that decreases in size as it moves from a... Agent: Harness, Dickey & Pierce, P.L.C

20070183917 - Foam reduction device for a compressor: A foam control device includes a first member coupled to an oil reservoir of a compressor and a second member to prevent foam from flowing into an interior section of the compressor. when a shaft of the compressor rotates. The second member controls a position of the first member based... Agent: Ked & Associates, LLP

20070183916 - Oil pump for a scroll compressor: An oil pump for a compressor includes a driving shaft having an oil passage, a gear driving unit coupled to the drive shaft, a pump body having a driving shaft insertion groove, a friction reducing member assembled on the driving shaft insertion groove to reduce friction between the driving shaft... Agent: Ked & Associates, LLP

20070178001 - Scroll fluid machine: In a scroll fluid machine, a driving shaft extends axially to allow an orbiting scroll to revolve with respect to a fixed scroll thereby compressing a gas introduced from the outer circumference of the fixed scroll in a compressing chamber formed between the orbiting and fixed scrolls. From one end... Agent: Joel D. Skinner, Jr. Skinner And Associates

20070178002 - Scroll compressor: a First gap 15 in a thrust direction between teeth bottoms of a fixed mirror plate 2b and teeth tips of an orbiting lap 4a, and a second gap 16 in the thrust direction between teeth bottoms of an orbiting mirror plate 4b and teeth tips of a fixed lap... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070178003 - Gear pump with ripple chamber for low noise and pressure ripples: A gear pump comprising a gear chamber having opposite side walls; a pair of gears disposed within the gear chamber with teeth thereof meshed with one another, the meshed teeth forming a trap region in which fluid becomes entrapped during rotation of the gears; inlet and outlet chambers on opposite... Agent: Don W. Bulson (parker Hannifin) Renner, Otto, Boisselle & Sklar, LLP