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| Number | Title | Issue Date |
| 8100630 | Fluid flow machine with multi-flow rotor arrangement A fluid flow machine includes at least one casing 1 and at least one rotor drum 3 rotatable about a machine axis 4, with stator vanes 8 and rotor blades 7 being arranged in an annulus duct 2 formed between the casing 1 | 01/24/2012 |
| 7850417 | Engine arrangement In a contra rotating propeller engine propeller blade assemblies are provided which rotate in opposite directions as a result of association with an epicyclic gear assembly acting as a differential gearbox. A carrier is provided to drive one propeller blade assembly... | 12/14/2010 |
| 7334981 | Counter-rotating gas turbine engine and method of assembling same A method for assembling a gas turbine engine that includes providing a low-pressure turbine inner rotor that includes a first plurality of rows of turbine blades configured to rotate in a first rotational direction, providing a low-pressure turbine outer rotor that ... | 02/26/2008 |
| 7290386 | Counter-rotating gas turbine engine and method of assembling same A method for assembling a gas turbine engine that includes providing a low-pressure turbine inner rotor that includes a first plurality of turbine blade rows configured to rotate in a first direction, and rotatably coupling a low-pressure turbine outer rotor to the ... | 11/06/2007 |
| 7195446 | Counter-rotating turbine engine and method of assembling same A method for assembling a gas turbine engine that includes providing a low-pressure turbine inner rotor configured to rotate in a first direction, providing a low-pressure turbine outer rotor configured to rotate in a second direction that is opposite the first rota... | 03/27/2007 |
| 7186073 | Counter-rotating gas turbine engine and method of assembling same A method for assembling a gas turbine engine includes providing a low-pressure turbine inner rotor that includes at least a first pair of adjacent rows of turbine blades that are configured to rotate in a first direction providing a low-pressure turbine outer rotor ... | 03/06/2007 |
| 7052230 | Pump assembly A pump assembly including a pump, a pump frame and a motor, the pump including a pumping member which is mounted in a pump housing, relative rotation of the pumping member with respect to the pump housing causing pumping of fluid, and the motor including a rotor and... | 05/30/2006 |
| 6960059 | Blower with a plurality of impellers A blower having a plurality of impellers is described. The blower has two driving devices and two impellers respectively mounted on the two driving devices. The blades of the two impellers, which are radially or axially disposed, are overlapped so as to enhance the ... | 11/01/2005 |
| 6854954 | Methods and apparatus for assembling turbine engines A method for assembling a power system is provided. The method includes coupling a first turbine and second turbine together with a coupling that extends between a first rotor of a first turbine and a second rotor of the second turbine, and such that the first turbi... | 02/15/2005 |
| 6684626 | Aircraft gas turbine engine with control vanes for counter rotating low pressure turbines An aircraft gas turbine engine includes a low pressure turbine having a low pressure turbine flowpath and counter rotatable low pressure inner and outer shaft rotors having inner and outer shafts, respectively. The low pressure inner and outer shaft rotor... | 02/03/2004 |
| 5443590 | Rotatable turbine frame A rotatable turbine frame includes annular outer and inner bands having a plurality of circumferentially spaced apart struts extending therebetween. An annular drive shaft is fixedly joined to the inner band for transmitting output torque therefrom, and t... | 08/22/1995 |
| 5307622 | Counterrotating turbine support assembly A counterrotating turbine support assembly includes outer and inner rotors having respective outer and inner blades disposed in an outer casing. A mid-frame is disposed forwardly of the rotors and fixedly joined to the outer casing. A rear frame is dispos... | 05/03/1994 |
| 4951461 | Power turbine support arrangement A coupling arrangement for supporting a power turbine in a gas turbine engine. The power turbine section comprises a stator structure, first and second rotors, and first and second bearings. The first and second rotors are coaxially disposed about a longi... | 08/28/1990 |
| 4907944 | Turbomachinery blade mounting arrangement An improved blade mounting arrangement for a gas turbine engine with a turbine and an annular flowpath therethrough is disclosed. The improvement comprises a one-piece outer casing and a one-piece inner casing bounding the flowpath. The outer casing has a... | 03/13/1990 |
| 4860537 | High bypass ratio counterrotating gearless front fan engine A gas turbine engine having a core gas generator engine for generating combustion gases, with an additional power turbine, an additional fan section, and a booster compressor. The power turbine includes two counter rotatable turbine blade rows which are a... | 08/29/1989 |
| 4790133 | High bypass ratio counterrotating turbofan engine A gas turbine engine comprising a core gas generator engine for generating combustion gases, an additional power turbine, an additional fan section, and a booster compressor is disclosed. The power turbine includes first and second counterrotatable turbin... | 12/13/1988 |
| 4767271 | Gas turbine engine power turbine A power turbine suitable for a gas turbine engine which a blade of one array of turbine blades has a fan propulsion blade attached to its radially outer extent. A drum member is further provided which carries at least one further annular array of turbine ... | 08/30/1988 |
| 4621978 | Counterrotating power turbine An improved counterrotating power turbine is disclosed. The power turbine includes a support having an annular axial cross-section and forward and aft portions. The forward portion of the support has a diameter greater than the diameter of the aft portion... | 11/11/1986 |
| 4400134 | Collector apparatus Pumping apparatus for collecting polluted liquids such as oil on water and including a first pumping stage comprising a rotatable annular rotor having curved blades shaped to draw liquid inwardly towards the center of rotation, and stationary blades dispo... | 08/23/1983 |
| 4274261 | Closed cycle contrarotating gas turbine power plant utilizing helium as the working medium A power unit consisting of contrarotating axial flow compressor and turbine rotors in a closed cycle helium turbine engine with a centrally located scroll between the compressor and turbine sections (to duct the working medium into and out of the heat sou... | 06/23/1981 |
| 4192137 | Turboshaft engine An improvement in torque characteristics is provided for a turboshaft engine of the type having a compressor rotor driven by a gas generator turbine that is mechanically independent of the power turbine. The improvement comprises a rotatable compressor st... | 03/11/1980 |
