Rotary expansible chamber devices inventions

20090280018 - Compressor: A scroll compressor (11) comprising a thrust bearing (53) including a first sliding surface (100) and a second sliding surface (101) in opposed relation to the first sliding surface (100) is disclosed. The first sliding surface (100) is formed with a plurality of insular pressure-receiving portions (83) surrounded by grooves... Agent: Posz Law Group, PLC

20090280019 - Scroll compressor: A scroll compressor having an improved compression efficiency by optimizing a step mesh gap in an operating state is provided. The scroll compressor having a step-like shape has a step-mesh-gap set value occurring between step side surfaces of a connecting wall of a fixed scroll and a connecting edge of... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20090280020 - Compressor: There is disclosed a compressor which stably supplies oil to a sliding portion. The compressor includes an ejector oil pump which sucks the oil from an oil reservoir in the bottom part of a sealed container to an oil passage formed in a rotary shaft, and the ejector oil pump... Agent: Kratz, Quintos & Hanson, LLP

20090280021 - Hydraulic machine: A hydraulic pump or motor includes a body having a chamber and a rotor rotatably mounted within the chamber. The chamber and rotor are shaped to define one or more rise regions, fall regions, major dwell regions and minor dwell regions between walls of the chamber and the rotor. The... Agent: Winston & Strawn LLP Patent Department

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