Rotary expansible chamber devices inventions

20090263265 - Compressor unit: The invention relates to a compressor unit, in particular for underwater operations, comprising a compressor with a rotational axis and an electric motor. Said compressor unit has a housing with an automation unit for control and regulation tasks. The aim of the invention is to improve the co-operation of the... Agent: Siemens Corporation Intellectual Property Department

20090257898 - Rotary pump or motor with orbital piston aspiration: Rotary components are described that include a housing comprising a rotor having a rotor working face and a gate having a gate working face and a pocket; at least one vane, wherein the vane is coupled to the rotor; at least one wiper coupled to the vane; a plurality of... Agent: Buchalter Nemer

20090257899 - Variable displacement vane pump: A variable displacement vane pump includes a first and a second fluid pressure chamber (31,32) where the cam ring (4) is made eccentric to the rotor (2) by a pressure difference between the first and the second fluid pressure chamber (31,32), a control valve (21) for controlling a pressure of... Agent: Rabin & Berdo, PC

20090257900 - Shaft coupling for scroll compressor: A coupling mechanism for a scroll compressor comprises an orbiting scroll disk, a retention bolt, a bearing shaft and a retention nut. The orbiting scroll disk includes a first face configured to engage a stationary scroll disk to compress a working fluid, and a second face having a hub. The... Agent: Kinney & Lange, P.A.

20090257901 - Power steering pump having intake channels with enhanced flow characteristics and/or a pressure balancing fluid communication channel: A power steering pump having a plate disposed between a first surface and an intake chamber, wherein an intake flow channel defined by the first surface is in fluid communication with the intake chamber through an opening extending through the plate, the plate opening having opposed terminal ends. The intake... Agent: Howard & Howard Attorneys PLLC

20090257902 - Compressor device: An improved multi-stage compressor device for compressing gas, which compressor device (1) mainly consists of at least two compressor elements (2-5-28) placed in series one after the other, at least one of which (5-28) is driven by a motor (9), characterized in that at least one other compressor element (2)... Agent: Bacon & Thomas, PLLC

20090252630 - Single-shaft eccentric screw pump: A double/triple-thread single-shaft eccentric screw pump is provided. The rotor of the pump overhangs little in comparison with the flange type connecting structure. The whole length of the pump is short, and the pump casing of the pump is short and small in diameter, so that the pump is small... Agent: Alleman Hall Mccoy Russell & Tuttle LLP

20090252631 - Magnetic trap for ferrous contaminants in lubricant: A compressor includes a tubular vertical shaft, which rotates about its vertical axis, a cylinder block for supporting the tubular vertical shaft, a rotor for driving the rotation of the tubular vertical shaft, and a stator affixed to the cylinder block. A lubricant is channelled from the lower end of... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090252632 - Device to prevent the formation of condensate in compressed gas and compressor unit equipped with such a device: Device to prevent the formation of condensate in compressed gas coming from an oil-injected compressor element (2) which is connected to an oil separator (9) which is connected to the above-mentioned compressor element (2) by means of an injection pipe (12), and whereby a cooler (14) is provided in the... Agent: Bacon & Thomas, PLLC

20090252633 - Lobe pump system and method of manufacture: A method of manufacturing a rotor to be used in a dual-rotor lobe pump system for pumping a material at a periodic rate is provided. The method includes selecting a desired periodic flow rate for the material, selecting a number of lobes for the rotor, and selecting either a thickness... Agent: Christie, Parker & Hale, LLP