F01C 1/16

Sub-Class

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Description

Class  F01C : ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES


Subclass 1/16: Rotary-piston machines or engines (with axes of co-operating members non-parallel F01C 3/00; with the working-chamber walls at least partly resiliently deformable F01C 5/00; with fluid ring or the like F01C 7/00; rotary-piston machines or engines in which the working fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F01B 13/00) of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12163460 Additively manufactured rotors for superchargers and expandersNov 05, 21Dec 10, 24EATON INTELLIGENT POWER LIMITED
12123499 Methods and systems for sealing rotating equipment such as expanders or compressorsSep 16, 19Oct 22, 24Not available
12055042 Screw expander with variable volume controlled by the pressure ratio, and plant for recovering electrical energy from heat with a screw expanderJun 07, 21Aug 06, 24Bitzer Kuehlmaschinenbau GmbH
12055143 Screw compressor with adjustable passageOct 07, 20Aug 06, 24Carrier Corporation
12031536 Screw compressor and screw rotorOct 18, 21Jul 09, 24Hitachi Industrial Equipment Systems Co., Ltd.
12031537 Screw compressor with multi-layered coating of the rotor screwsApr 05, 23Jul 09, 24Kaeser Kompressoren SE
12025129 Liquid supply type screw compressorJan 28, 21Jul 02, 24Hitachi Industrial Equipment Systems Co., Ltd.
11873817 Liquid-feeding rotary-screw compressorSep 10, 20Jan 16, 24Hitachi Industrial Equipment Systems Co., Ltd.
11629716 Compressor or vacuum pump provided with a transmissionNov 01, 19Apr 18, 23Atlas Copco Airpower naamloze vennootschap
11415134 Screw rotor, fluid machine main body, and fluid machineMar 14, 19Aug 16, 22Hitachi Industrial Equipment Systems Co., Ltd.
11378076 Gear pump or motorJan 28, 21Jul 05, 22Shimadzu Corporation
11365735 Internal discharge gas passage for compressorOct 23, 18Jun 21, 22Carrier Corporation
11339781 Screw spindle pump, fuel pump assembly, and fuel pump unitJun 25, 18May 24, 22Vitesco Technologies GmbH
11313366 Device for conveying a mediumNov 19, 15Apr 26, 22ITT Bornemann GmbH
11293433 Screw spindle pump, fuel pump assembly, and fuel pump unitJun 18, 18Apr 05, 22Vitesco Technologies GmbH
11293435 Vacuum pump screw rotors with symmetrical profiles on low pitch sectionsAug 08, 17Apr 05, 22LEYBOLD GMBH
11293438 Screw compressor with magnetic gearDec 13, 17Apr 05, 22Carrier Corporation
11225965 Screw rotor and fluid machine bodyMar 14, 19Jan 18, 22Hitachi Industrial Equipment Systems Co., Ltd.
11149734 Fluid machineAug 22, 17Oct 19, 21Hitachi Industrial Equipment Systems Co., Ltd.
11008866 Fixed displacement turbine engineNov 27, 18May 18, 21Not available

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0102,067 METHODS AND SYSTEMS FOR SEALING ROTATING EQUIPMENT SUCH AS EXPANDERS OR COMPRESSORSOct 22, 24Mar 27, 25Not available
2021/0123,345 PRESSURE REDUCER FOR ROTARY INTERNAL COMBUSTION ENGINEApr 20, 18Apr 29, 21Not available
2021/0017,986 Screw Rotor, Fluid Machine Main Body, and Fluid MachineMar 14, 19Jan 21, 21Not available
2020/0208,523 SCREW COMPRESSORJun 30, 19Jul 02, 20Not available
2018/0320,520 APPARATUS, SYSTEMS AND METHODS FOR LUBRICATION OF FLUID DISPLACEMENT MACHINESJul 18, 18Nov 08, 18Not available
2018/0223,666 Expansion SystemApr 04, 18Aug 09, 18Not available
2015/0240,639 APPARATUS, SYSTEMS AND METHODS FOR LUBRICATION OF FLUID DISPLACEMENT MACHINESFeb 21, 15Aug 27, 15Not available
2012/0017,634 Variable Capacity Screw Compressor and MethodJul 20, 10Jan 26, 12TRANE INTERNATIONAL INC.

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Top Owners in This Subclass

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Patents Issued To Date - By Filing Year

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