Pump Outlet Or Casing Portion Expands In Downstream Direction Patents (Class 415/207)
-
Patent number: 11920778Abstract: A ventilation fan includes a housing having an opening, a grille structure positioned to cover the opening, a fan module provided in the housing and a function module. The grille structure includes a base defining an outlet, and a grille support spaced apart from the base and connected by the connecting columns A radial inlet is formed between the base and the grille support is in communication with the outlet. The base includes a holder having a holding opening axially downward and faced away from the housing. The function module is disposed within the holder through the holding opening.Type: GrantFiled: September 30, 2022Date of Patent: March 5, 2024Assignee: DELTA ELECTRONICS, INC.Inventors: Yu-Hsiang Huang, Yen-Lin Chen, Chih-Hua Lin
-
Patent number: 11885350Abstract: An outflow region of a compressor. The outflow region comprises a flow channel delimited by a side wall at a shroud side and a side wall at a hub side. The side wall at the hub side has, in a region of the compressor wheel outlet, a contour configured such that, in a flow direction, the cross-sectional areas of the flow channel decrease, pass through a minimum and increase again. In the region of the compressor wheel outlet, the flow channel has a length L which extends from a compressor wheel outlet edge to a diffuser blade inlet edge of a diffuser region. The diffuser region adjoins the region of the compressor wheel outlet and has multiple diffuser blades. A compressor with the outflow region according to the invention, and to a turbocharger having the compressor.Type: GrantFiled: January 7, 2021Date of Patent: January 30, 2024Assignee: Turbo Systems Switzerland Ltd.Inventor: Daniel Rusch
-
Patent number: 11879483Abstract: A multiphase pump for conveying a multiphase process fluid includes a pump housing, a stationary diffuser, a rotor and swirl brake. The rotor is arranged in the pump housing and is rotatable about an axial direction, the rotor including a pump shaft and an impeller fixedly mounted on the pump shaft. The stationary diffuser is arranged adjacent to and downstream of the impeller. The impeller includes a blade with the blade having a radially outer tip, and a ring surrounding the impeller and arranged at the radially outer tip of the blade. A passage is between the ring and a stationary part configured to be stationary with respect to the pump housing, the passage extending in the axial direction from an entrance to a discharge. The swirl brake is disposed at the passage, and configured and arranged to brake swirling of the process fluid passing through the passage.Type: GrantFiled: April 27, 2021Date of Patent: January 23, 2024Assignee: SULZER MANAGEMENT AGInventors: Karel De Raeve, Bartosz Kus, Thomas Welschinger
-
Patent number: 11852032Abstract: A turbine includes a rotor including a rotation shaft that rotates around an axis and a blade row formed on an outer surface of the rotation shaft; a casing, which covers the rotor, has a casing inner surface being expanded radially outward approaching a downstream side of the casing in a direction of the axis; and an inner member body formed to line the casing inner surface of the casing such that an extraction port is formed between an upstream side end of the inner member body and the casing inner surface. A discharge port is formed between a downstream side end of the inner peripheral member body and the casing inner peripheral surface. The extraction port and the discharge port are formed in an annular shape centered on the axis. A flow path cross-sectional area of the discharge port is smaller than that of the extraction port.Type: GrantFiled: January 26, 2021Date of Patent: December 26, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshihiro Kuwamura, Shigeo Ookura, Shunsuke Mizumi, Chongfei Duan, Hideaki Sugishita, Kazuyuki Matsumoto, Naoto Omura
-
Patent number: 11835062Abstract: A diagonal fan has an electric motor, a housing, and a diagonal impeller received in the housing. The diagonal fan is driven via the electric motor. The fan generates a diagonal flow during operation that is deflected in an axial flow direction by an inner wall of the housing. An outlet guide vane device is arranged adjacent to the diagonal impeller when viewed in the axial flow direction. The outlet guide vane device has a plurality of guide vanes that are distributed in a circumferential direction. The outlet guide vane device homogenizes an airflow generated by the diagonal impeller. The device has an air outlet with a specified outlet diameter B. The diagonal fan extends over a total axial length E. The ratio of the total axial length E to the outlet diameter B is configured such that 0.3?E/B?0.6.Type: GrantFiled: October 9, 2019Date of Patent: December 5, 2023Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Thomas Heli, Daniel Gebert
-
Patent number: 11834952Abstract: Exhaust frequency mitigation apparatus, exhaust diffusers, and turbomachines are provided. An exhaust frequency mitigation apparatus includes a main body extending along an axial centerline from a base to a tip. the base defines a first diameter and the tip defining a second diameter. the main body converges from the first diameter to the second diameter with respect to the axial centerline. The base is configured to extend from an inner shell of a turbomachine exhaust diffuser. The exhaust frequency mitigation apparatus further includes at least one rib extending from a root coupled to the main body to a free end.Type: GrantFiled: June 7, 2022Date of Patent: December 5, 2023Assignee: General Electric CompanyInventors: Joshy John, Srinivas Pakkala, Prabaharan K, Satish Kumar, Prakash Bavanjibhai Dalsania
-
Patent number: 11578733Abstract: The disclosure relates to a centrifugal compressor and a diffuser; the diffuser includes a pressure drive mechanism, a first diffuser part, a second diffuser part and a movable diffuser part movable diffuser part being connected with the pressure drive mechanism and movably arranged on one of the first diffuser part and the second diffuser part; moreover, the movable diffuser part gets close to or leaves away from the other one of the first diffuser part and the second diffuser parts under the action of a pressure medium in the pressure drive mechanism so as to adjust a width of a pressure diffusion flow channel and prevent adverse phenomena such as gas flow stall and surging.Type: GrantFiled: October 23, 2019Date of Patent: February 14, 2023Assignee: Gree Electric Appliances, Inc. of ZhuhaiInventors: Hua Liu, Zhiping Zhang, Jian Chen
-
Patent number: 11444004Abstract: A cooler of the present invention is provided with a case having a top plate, a bottom plate, and a side plate, cooling fins disposed inside the case, and a flow path for cooling fluid that comes into contact with the cooling fins and that flows through the interior of the case, the cooler cooling an object to be cooled in contact with the top plate or the bottom plate. The cooling fins have a shaft part and vane parts that protrude outward from the shaft part and extend spirally in the axial direction; the overall cooling fin configuration constituting a quadrangular column shape. The cooling fins are disposed in contact with at least the top plate and the bottom plate, and the flow path has a spiral-formed configuration formed by the vane parts, the top plate, and the bottom plate.Type: GrantFiled: March 2, 2020Date of Patent: September 13, 2022Assignees: FUJI ELECTRIC CO., LTD., WASEDA UNIVERSITYInventors: Ryoichi Kato, Yoshinari Ikeda, Hiromichi Gohara, Tomoyuki Miyashita, Shingo Otake
-
Patent number: 11434912Abstract: A compressor housing for a turbocharger dividably composed of a plurality of pieces including a scroll piece, and a shroud piece. The scroll piece and the shroud piece are assembled to each other by press-fitting a press-fitting portion of the shroud piece into a press-fitted portion of the scroll piece. Pressure-contacting portions that are provided on either one of the scroll piece and the shroud piece are pressure-contacted with pressure-contacted portions that are provided on the other one of the scroll piece and the shroud piece, respectively. As a result, the pressure-contacting portions plastically flow to form seal parts for sealing the scroll piece and the shroud piece, respectively.Type: GrantFiled: March 5, 2020Date of Patent: September 6, 2022Assignee: OTICS CORPORATIONInventors: Tomoyuki Isogai, Tetsuya Niwa, Ryu Osuka
-
Patent number: 11378005Abstract: A diffuser for a compressor of a gas turbine engine is disclosed. The diffuser has a plurality of diffuser pipes circumferentially distributed about an axis of the compressor, each of the plurality of diffuser pipes extending from an inlet to an outlet and having a bend section between the inlet and the outlet, a low pressure side and an opposite high pressure side. A recirculation conduit defines a recirculation path from a first flow region to a second flow region in one or more of the plurality of the diffuser pipes, the first flow region having a greater static pressure than that of the second region, the recirculation conduit having a conduit inlet and a conduit outlet, at least the conduit outlet located within the low pressure side of one of the plurality of the diffuser pipes.Type: GrantFiled: December 17, 2020Date of Patent: July 5, 2022Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Hien Duong, Jason Nichols
-
Patent number: 11346323Abstract: The invention provides an energy collector which includes an electrostatic drive to increase the acceleration of a rotor to maximize the proportion of the time at which the collector is able to efficiently generate power.Type: GrantFiled: November 29, 2018Date of Patent: May 31, 2022Assignee: BARTON BLAKELEY TECHNOLOGIES LIMITEDInventors: Christopher Barton, Timothy Smeda
-
Patent number: 11293450Abstract: A centrifugal compressor includes an impeller which includes a front surface, a back surface, and a side surface; a first wall portion which includes a first wall surface facing the front surface and forming a flow passage; a second wall portion which includes a second wall surface facing the back surface and the first wall surface; and a protruding wall portion which is provided at an outside in a radial direction in relation to the side surface of the impeller. The protruding wall portion includes a third wall surface extending from the second wall surface in the axial direction and facing the side surface of the impeller. The third wall surface further extends toward the first wall surface in the axial direction from a connection portion between the front surface and the side surface. The third wall surface and the side surface form a second gap therebetween.Type: GrantFiled: November 19, 2020Date of Patent: April 5, 2022Inventors: Jinhee Byon, Takehiko Kato
-
Patent number: 11286952Abstract: A compressor includes an impeller and a diffuser. The impeller is mounted for rotation about an axis of the gas turbine engine. The diffuser is coupled to the impeller to receive the high velocity air from the impeller. The diffuser includes a first plate, a second plate spaced apart from the first plate axially, and a plurality of vanes located between the first and second plates.Type: GrantFiled: July 14, 2020Date of Patent: March 29, 2022Assignee: Rolls-Royce CorporationInventor: Steven Mazur
-
Patent number: 11187144Abstract: A diffuser includes a connection section and a body section. The connection section extends from an outlet of turbine rotor blades. The body section is connected to an end of the connection section on a downstream side and has a larger flow passage sectional area than the connection section. The shape of the flow passage sectional surface of the connection section is formed into a circle at an outlet of the turbine rotor blades and is formed into an ellipse at an inlet of the body section. The shape of the flow passage sectional surface of the connection section is further formed to be gradually enlarged in a long-axis direction of the ellipse from the outlet of the turbine rotor blades toward the inlet of the body section.Type: GrantFiled: December 7, 2017Date of Patent: November 30, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Toru Hoshi, Reiko Takashima, Takao Yokoyama
-
Patent number: 11125235Abstract: A diffuser is proposed which is formed as the gap between rotationally-symmetric surfaces which face each other. Moving in the radial direction, the axial extent of the gap generally decreases to a minimum value in a throat portion of the diffuser, and then generally increases again. The distance from the rotational axis of the compressor to the throat may be approximately at least 125% of the radius of the compressor wheel. The inventors have found that a throat at this distance from the rotational axis may lead to higher efficiency at high flow rates, especially for relatively low turbo speeds. This is because the spacing between the compressor wheel and the throat permits diffusion of the gas streams leaving the compressor wheel.Type: GrantFiled: June 29, 2017Date of Patent: September 21, 2021Assignee: Cummins Ltd.Inventor: Subenuka Sivagnanasundaram
-
Patent number: 11105262Abstract: The invention relates to a turbine engine extending longitudinally along an X axis and including a main duct in which an air stream flows, the turbine engine including at least one upstream compressor disc, at least one downstream compressor disc and a circuit for collecting air from an air stream collected in the main duct, the air collection circuit including a radial portion in which at least one air collection tube is mounted and a longitudinal portion extending between a cylindrical body and a central bore of the downstream compressor disc. The turbine engine includes a plurality of blades extending in the longitudinal portion of the air collection circuit, configured to be rotated about the X axis, in order to rotate the collected air stream.Type: GrantFiled: April 16, 2019Date of Patent: August 31, 2021Assignee: SAFRAN AIRCRAFT ENGINESInventors: Christophe Scholtes, Ulysse Jacques Bernard Danteny
-
Patent number: 11078922Abstract: A scroll casing forms a scroll flow passage of a centrifugal compressor, and provided that, in a cross section of the scroll flow passage, Ei is an inner end of the scroll flow passage in a radial direction of the centrifugal compressor, and Mh is a middle point of a maximum flow-passage height Hmax of the scroll flow passage in the axial direction of the centrifugal compressor, the scroll flow passage has a separation suppressing cross section in which the inner end Ei is disposed on an inner side, in the radial direction, of a diffuser outlet, and the inner end Ei is disposed on a back side, in the axial direction, of the middle point Mh, in a section disposed at least partially in an upstream region of a connection position of a scroll start and a scroll end.Type: GrantFiled: October 29, 2015Date of Patent: August 3, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Kenichiro Iwakiri, Isao Tomita, Takashi Shiraishi
-
Patent number: 11009038Abstract: The invention relates to a diffuser (5) of a radial or hybrid compressor (2) comprising an internal shroud (20), an external shroud (30) and a series of vanes (10), the trailing edge (12) of each vane (10) being curved in such a way that a distance (di) between the leading edge (11) and the trailing edge (12) of the vane (10) at the mid-height point (h/2) of the vane (10) is 5% to 15% shorter than a distance (d2) between the leading edge (11) and the trailing edge (12) of the vane (10) at the level of the internal shroud (20), the trailing edge (12) also having an evolving cross section comprising a first part forming a low wall (14) in the vicinity of the external shroud (20) and having a height (H) equal to at most 10% of the height (h) of the vane (10), a curved second part and a third part forming a low wall (14) substantially identical to the first part.Type: GrantFiled: April 9, 2018Date of Patent: May 18, 2021Assignee: SAFRAN AIRCRAFT ENGINESInventors: Florent Combier, Jean-Claude Belouar, Pauline Anne Freche, Eric Jean-Paul Guinoiseau, Cedric Louis Joseph Laurent
-
Patent number: 10995728Abstract: Provided is a wind power generation system including: a wind power generation apparatus that includes at least a duct having a longitudinal cross section formed in a substantial streamline shape, the longitudinal cross section being cut along a central axis, an impeller placed in the duct, and a power generator that generates power by rotation of the impeller; an anemovane installed so as to be able to measure a wind direction and/or wind power in a vicinity of the wind power generation apparatus; a rotating pedestal that supports the wind power generation apparatus so as to be rotatable along a supporting surface; and a control device that controls a rotational angle of the rotating pedestal based on the wind direction and/or the wind power measured by the anemovane.Type: GrantFiled: March 15, 2018Date of Patent: May 4, 2021Inventor: Kuninori Tsuda
-
Patent number: 10989221Abstract: A cooling system includes a fan and a system component. The fan includes a plurality of fan blades and configured to rotate in a fan direction. The system component is located downstream of the fan, and includes a cutout for passing of airflow from the fan, and a bridge spanning the cutout. The bridge includes a center section and at least one arm section extending from the center section to an edge of the cutout along a curved path offset towards the fan direction.Type: GrantFiled: June 29, 2016Date of Patent: April 27, 2021Assignee: QUANTA COMPUTER INC.Inventors: Chao-Jung Chen, Yu-Nien Huang, Ching-Yu Chen, Tsung-Ta Li
-
Patent number: 10895169Abstract: An exhaust casing is provided with an outer casing which communicates with a diffuser. The outer casing has a downstream side end plate defining an edge on an axially downstream side of an exhaust space, and an inclined plate connected to the downstream side end plate. The inclined plate gradually widens toward an axially upstream side toward a radially outer side. An angle of an inclined inner surface of the inclined plate with respect to a tangential line at an end on the radially outer side of an inner peripheral surface of an outer diffuser, which is an upstream side angle of the axially upstream side on the basis of the tangential line, is greater than a downstream side angle of the axially downstream side.Type: GrantFiled: February 14, 2018Date of Patent: January 19, 2021Assignee: MITSUBISHI POWER, LTD.Inventors: Yoshihiro Kuwamura, Kazuyuki Matsumoto
-
Patent number: 10837345Abstract: A blast fan includes: a tubular frame having a first opening and a second opening to pass airflow through between the first opening and the second opening. The first opening has a first reverse tapered portion expanding from inside to outside of the frame, and the first reverse tapered portion has a surface having first convex portions projecting to the inside of the frame.Type: GrantFiled: September 26, 2017Date of Patent: November 17, 2020Assignee: SANYO DENKI CO., LTD.Inventors: Yoshihisa Yamazaki, Satoshi Fujimaki, Takashi Kawashima, Souma Araki
-
Patent number: 10760438Abstract: An axial flow rotating machine has: a rotor with a plurality of rotor blades; a stator with a plurality of stator blades; an axial flow rotating portion defined by the rotor and the stator; and a diffuser connected to the axial flow rotating portion on a downstream side of the axial flow rotating portion. A final blade portion inner-circumferential inner wall, which is a portion of an inner-circumferential inner wall of the axial flow rotating portion, is defined such that a diameter thereof at a trailing edge position of a final blade is smaller than the diameter at a leading edge position of the final blade. In addition, a diameter of all or a portion of a diffuser inner-circumferential inner wall decreases in a direction of the downstream side in an axial direction.Type: GrantFiled: March 20, 2014Date of Patent: September 1, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kazuya Nishimura, Eisaku Ito, Koichiro Iida, Kentaro Akimoto
-
Patent number: 10753217Abstract: An axial flow rotating machine has: a rotor with a plurality of rotor blades; a stator with a plurality of stator blades; an axial flow rotating portion defined by the rotor and the stator; and a diffuser connected to the axial flow rotating portion on a downstream side of the axial flow rotating portion. A final blade portion inner-circumferential inner wall, which is a portion of an inner-circumferential inner wall of the axial flow rotating portion, is defined such that a diameter thereof at a trailing edge position of a final blade is smaller than the diameter at a leading edge position of the final blade. In addition, a diameter of all or a portion of a diffuser inner-circumferential inner wall decreases in a direction of the downstream side in an axial direction.Type: GrantFiled: April 10, 2019Date of Patent: August 25, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kazuya Nishimura, Eisaku Ito, Koichiro Iida, Kentaro Akimoto
-
Patent number: 10704423Abstract: A diffuser for a turbine engine includes a first wall that extends circumferentially about a centerline axis of the turbine engine. The diffuser also includes a second wall that extends circumferentially about the centerline axis. At least a portion of the second wall is positioned radially outwardly from at least a portion of the first wall. A flow path is defined by the first wall and the second wall. The flow path extends from an inlet configured to receive an axial flow of a fluid, to a circumferentially extending outlet configured to emit the fluid in a substantially radial direction. The outlet extends asymmetrically about the centerline axis.Type: GrantFiled: August 12, 2015Date of Patent: July 7, 2020Assignee: General Electric CompanyInventors: Deepesh D. Nanda, Robert Jacek Zreda, Daniel Tomasz Ozga
-
Patent number: 10473115Abstract: The present disclosure relates to a diffuser for a radial compressor.Type: GrantFiled: June 22, 2017Date of Patent: November 12, 2019Assignee: ABB Turbo Systems AGInventors: Christian Kreienkamp, Armin Reichl, Daniel Rusch
-
Patent number: 10450909Abstract: An oil pump in a motor vehicle, having a case and an electric motor mounted in the case. The electric motor drives a pump stage which is likewise mounted in the case. The oil pump is an axial flow centrifugal pump.Type: GrantFiled: February 6, 2012Date of Patent: October 22, 2019Assignee: Continental Automotive GmbHInventor: Peter Koeppler
-
Patent number: 10422344Abstract: A turbine diffuser configured for use in a turbocharger is disclosed. The turbine diffuser may comprise a diffuser wall defining the diffuser and circumscribing a central axis of the diffuser, and a plurality of deswirl ribs each extending axially along the diffuser wall. Each of the deswirl ribs may have a first end attached to the diffuser wall, and an opposing second end exposed in an interior space of the diffuser. The deswirl ribs may be configured to reduce rotation of exhaust gas that flows through the diffuser.Type: GrantFiled: September 13, 2018Date of Patent: September 24, 2019Assignee: BorgWarner Inc.Inventor: David George Grabowska
-
Patent number: 10422345Abstract: A diffuser for a centrifugal compressor including an annular diffuser housing having a plurality of diffuser flow passages therethrough the housing. Each passage including a throat portion and a diffusing section with upstream and downstream diffusing portions. A diffusing passage centerline includes a linear portion extending downstream through the throat portion and the upstream diffusing portion and a curved portion of the diffusing passage centerline extending downstream from the centerline linear portion through the downstream diffusing portion. The diffuser flow passages may have an equivalent cone angle varying non-linearly or more particularly curvilinearly downstream along curved portion. The downstream diffusing portion may be flared.Type: GrantFiled: October 17, 2014Date of Patent: September 24, 2019Assignee: General Electric CompanyInventors: David Vickery Parker, Michael Macrorie, Caitlin Jeanne Smythe, David Paul Miller
-
Patent number: 10238146Abstract: A high powered electronic cigarette machine in which the atomizer vapor output feeds into a compression chamber via forced fan induction. The compression chamber operates via a motor driven piston and is also assisted via an electromagnet. The compressed vapor is released to the end user for inhalation via a switch operating a release valve downstream of the nozzle or mouthpiece and it's release settings are adjustable via a touchscreen control and display interface.Type: GrantFiled: February 27, 2016Date of Patent: March 26, 2019Inventor: Brandon Nedelman
-
Patent number: 10041377Abstract: A system includes a diffuser configured to receive exhaust gas from a turbine. The diffuser includes an outer barrel, an inner barrel, a seal interface, an outer aft plate, an inner aft plate, and poles. An upstream end of the outer barrel includes an upstream lip interfacing with a downstream lip of an outer wall of the turbine outlet, forming a lap joint. The outer barrel includes a plurality of axial segments disposed between the upstream end of the outer barrel and the outer aft plate, and the axial segments. The inner barrel includes a plurality of axial segments disposed between an upstream end of the inner barrel and the seal interface. The seal interface includes a groove configured to receive the inner aft plate. The poles are spaced about the turbine axis and couple an end of the outer aft plate to an end of the inner aft plate.Type: GrantFiled: November 24, 2015Date of Patent: August 7, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Deepesh Dinesh Nanda, Robert Jamiołkowski, Robert Jacek Zreda, Eric Yves Bracquemart, Daniel Tomasz Ożga
-
Patent number: 10024337Abstract: One describes a rotor (1) for an exhaust-fan assembly (4) of an 5 agricultural machine, the rotor (1) comprising a central shaft (7), a first portion (31) provided with an inlet deflector (15) having a substantially elliptical profile, defining a tapered inlet end (26). The rotor, which is also provided with a set of blades (13), further comprises a second portion (29) provided with an outlet deflector (22) having a substantially elliptical profile, so that the 10 first and the second portions (31, 29) are associated to the central shaft (7). According to the invention, one provides a rotor that promotes efficient cleaning of harvested cane.Type: GrantFiled: December 4, 2014Date of Patent: July 17, 2018Assignee: Marchesan Implementos e Máquinas AgrÃcolas Tatu S.A.Inventors: Dacio Helene Junior, Valter Palmute
-
Patent number: 9970455Abstract: A compressor includes a housing; an impeller rotatably installed in the housing; a guidance unit connected to the housing at a first end of the guidance unit and configured to guide a fluid discharged by the impeller, the guidance unit configured to change a flow direction; and a scrolling unit connected to a second end opposite to the first end of the guidance unit. A width of an opening via which the fluid enters a circular space of the scrolling unit is about 1.5 to about 3.5 times a height of the guidance unit.Type: GrantFiled: July 15, 2015Date of Patent: May 15, 2018Assignee: HANWHA POWER SYSTEMS CO., LTD.Inventors: Jongjae Cho, Yeonhwa Cho, Bonggun Shin, Kangsoo Im
-
Patent number: 9896950Abstract: A turbine stator wheel of a gas turbine with a plurality of stator vanes spaced apart around the circumference is provided. Two adjacent stator vanes form a passage each between the suction side of the one stator vane and the pressure side of the other stator vane starting from the vane trailing edge, which includes a constant passage portion in which the passage has a substantially constant passage cross-section. The constant passage portion has an inlet area and an outlet area. Each stator vane forms on the pressure side a rear area that extends, starting from the vane trailing edge adjoining the constant passage portion as far as the inlet area of the passage portion, and on the pressure-side forms a front area that extends upstream of the rear area. Each stator vane has on the pressure side a convex pressure-side contour.Type: GrantFiled: September 8, 2014Date of Patent: February 20, 2018Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KGInventors: Lars Willer, Knut Lehmann, Philipp Amtsfeld
-
Patent number: 9835161Abstract: A rotary machine includes a guide section formed in an annular flow path in communication with a suction volute at an inner circumferential side of the suction volute, at which a plurality of vanes are installed in a circumferential direction, and configured to guide a fluid introduced from the suction volute, and an impeller connected to the guide section in the axial direction and into which the fluid guided by the guide section is introduced. The suction volute has an annular opening section in communication with the guide section at the inner circumferential side, and an inner wall surface extending from the opening section toward the axial direction of the impeller in the axial direction to increase a width dimension in the axial direction and connected to a partition section at an opposite side of the suction nozzle.Type: GrantFiled: February 27, 2012Date of Patent: December 5, 2017Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Jo Masutani, Satoru Yoshida
-
Patent number: 9810238Abstract: A turbine assembly includes a turbine housing and a turbine wheel disposed within the turbine housing. The turbine wheel includes a rotational axis and a plurality of blades. The turbine assembly includes a turbine shroud disposed between the turbine housing and the turbine wheel along a radial direction. The turbine shroud is separate from the turbine housing. The turbine shroud includes an annular portion extending generally in an axial direction with respect to the rotational axis and a plate portion intersecting the annular portion to form a convex curved surface. At least a portion of the blades is disposed in at least a portion of the annular portion. Each blade includes a leading edge and a tip portion. Each leading edge is angled with respect to the rotational axis, and each tip portion forms a concave portion that curves around the curved surface of the turbine shroud.Type: GrantFiled: March 9, 2015Date of Patent: November 7, 2017Assignee: Caterpillar Inc.Inventors: Richard E. Annati, Jeffrey W. McCormack, Matthew J. Frick
-
Patent number: 9709062Abstract: A centrifugal compressor includes: a volute casing including a first casing and a second casing that are mutually coupled, the first casing including a volute chamber therein and the second casing including an impeller installation space therein; an impeller provided in the impeller installation space so as to be rotatable around a rotation axis; and a vaneless diffuser that has an inlet that communicates with an inside of the second casing and has an outlet that communicates with an inside of the first casing. The vaneless diffuser has a width having a non-axisymmetric distribution in the circumferential direction.Type: GrantFiled: March 21, 2012Date of Patent: July 18, 2017Assignee: IHI CorporationInventors: Xinqian Zheng, Yun Lin, Yangjun Zhang, Chuanjie Lan, Weilin Zhuge, Tomoki Kawakubo, Hideaki Tamaki
-
Patent number: 9636722Abstract: An exhaust fan assembly is provided for expelling contaminated air from a building. The assembly includes a plenum, a fan assembly attached to the plenum, and a windband mounted on top of the fan assembly. The fan assembly is constructed of cylindrical outer and inner walls which define a bearing chamber and surrounding annular space. A fan driven by a shaft extending downward from the bearing chamber draws exhaust air from the plenum and blows it up through the annular space to a nozzle at the top of the fan assembly.Type: GrantFiled: December 31, 2013Date of Patent: May 2, 2017Assignee: Greenheck Fan CorporationInventors: John William Enzenroth, Terry Lee Hrdina, Kishor Kashinath Khankari, Scott James Koeppel, Edward G. Legner, Timothy Ronald Mathson, Anthony J. Rossi, Michael Glenn Seliger
-
Patent number: 9617914Abstract: A system includes a plurality of extraction passages configured to passively extract a portion of a gas flow from a downstream region of a gas flow path. The system includes a plurality of sensors respectively coupled to the plurality of extraction passages, wherein the plurality of sensors is configured to measure one or more parameters of the portion of the gas flow traversing the plurality of extraction passages. The system also includes a manifold coupled to the plurality of extraction passages, wherein the manifold is configured to receive the portion of the gas flow from the plurality of extraction passages. The system further includes a return passage coupled to the manifold, wherein the return passage is configured to passively provide the portion of the gas flow to an upstream region of the gas flow path.Type: GrantFiled: June 23, 2014Date of Patent: April 11, 2017Assignees: General Electric Company, ExxonMobil Upstream Research CompanyInventors: Karl Dean Minto, Douglas Frank Beadie
-
Patent number: 9593853Abstract: A duct arrangement in a can annular gas turbine engine. The gas turbine engine has a gas delivery structure for delivering gases from a plurality of combustors to an annular chamber that extends circumferentially and is oriented concentric to a gas turbine engine longitudinal axis for delivering the gas flow to a first row of blades A gas flow path is formed by the duct arrangement between a respective combustor and the annular chamber for conveying gases from each combustor to the first row of turbine blades The duct arrangement includes at least one straight section having a centerline that is misaligned with a centerline of the combustor.Type: GrantFiled: February 20, 2014Date of Patent: March 14, 2017Assignee: SIEMENS ENERGY, INC.Inventors: Matthew D. Montgomery, Richard C. Charron, Gary D. Snyder, William W. Pankey, Clinton A. Mayer, Benjamin G. Hettinger
-
Patent number: 9512733Abstract: A diffuser-nozzle assembly for mounting at an outlet from a compressor in a turbomachine, the assembly including a nozzle including two substantially cylindrical walls, a radially inner wall and a radially outer wall that are connected together by radial vanes. The walls of the nozzle are extended downstream beyond the radial vanes and the radial spacing therebetween varies downstream from the vanes to be at a minimum substantially in register with the vanes and at a maximum between the vanes.Type: GrantFiled: October 21, 2009Date of Patent: December 6, 2016Assignee: SNECMAInventors: Jean-Pierre Francois Lombard, Eric Mercier, Francois Pierre Georges Maurice Ribassin
-
Patent number: 9458857Abstract: A cooling fan includes a frame and a fan body. A bottom end of the frame forms a pressed portion that borders an air inlet. The pressed portion increases the size of the air inlet allowing more air to flow to better cool an electronic device.Type: GrantFiled: June 27, 2013Date of Patent: October 4, 2016Assignee: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Chih-Hao Yang, Li-Kan Yeh
-
Patent number: 9284853Abstract: A system and method for integrating sections of a turbine are provided. In one system, a turbine includes a last stage bucket section with a first annular outer wall that is angled with respect to a centerline of the turbine at a first angle average. The turbine also includes a diffuser section having a second annular outer wall that is angled with respect to the centerline of the turbine at a second angle average for improving radial swirl. The first angle average is greater than the second angle average.Type: GrantFiled: October 20, 2011Date of Patent: March 15, 2016Assignee: General Electric CompanyInventors: Deepesh Dinesh Nanda, Gunnar Leif Siden, Craig Allen Bielek
-
Patent number: 9239166Abstract: A diffuser for use in a gas turbine engine, the diffuser having a first wall, a second wall, and a flow separator. The first and second wall define an annular cavity, with the annular cavity having an inlet. The first and second wall also forming a prediffuser that is proximate the inlet, and a dump region distal the inlet. The flow separator extends from the first wall into the annular cavity.Type: GrantFiled: October 29, 2012Date of Patent: January 19, 2016Assignee: Solar Turbines IncorporatedInventors: Timothy James Caron, Peter J. Skyes, Christopher J. Meyer, Federico Liberatore
-
Patent number: 9217368Abstract: A method of modifying a gas turbine plant which is provided with a one-shaft gas turbine having a compressor for compressing air, a combustor for generating a combustion gas from the air compressed by the compressor and a fuel, and a one-shaft turbine driven by the combustion gas generated by the combustor and supported by a rotational axis common to the compressor, and an electric generator for generating electric power by driving force of the one-shaft turbine, wherein: the one-shaft turbine is replaced with a two-shaft gas turbine including a compressor for compressing air, a combustor for generating a combustion gas from the air compressed by the compressor and a fuel, and a high-pressure turbine driven by the combustion gas generated by the combustor and supported by a first rotational axis common to the compressor, and a low-pressure turbine driven by the combustion gas used to drive the high-pressure turbine and supported by a second rotational axis, which is different from the axis for the high-pressuType: GrantFiled: December 30, 2010Date of Patent: December 22, 2015Assignee: Mitsubishi Hitachi Power Systems, Ltd.Inventors: Chihiro Myoren, Ryo Akiyama, Shinya Marushima
-
Publication number: 20150147168Abstract: An abrasive handling submersible pump assembly diffuser is described. An electric submersible pump assembly stage comprises a rotatable impeller, and a co-axially mounted diffuser comprising a diffuser bowl, the diffuser bowl comprising a plurality of diffuser bowl wedges having a blunted pie-shape, each of the plurality of diffuser bowl wedges protruding axially from a diffuser bowl floor into a cavity between the rotatable impeller and the co-axially mounted diffuser such that each of the plurality of diffuser bowl wedges protrudes into a path of pumped solid-laden fluid, wherein the blunted pie-shaped wedges extend radially between an inner wall and an outer wall of the diffuser bowl and a thickness of the blunted pie-shaped wedges in a circumferential direction increases towards the outer wall.Type: ApplicationFiled: November 21, 2014Publication date: May 28, 2015Inventors: Wesley John Nowitzki, Gregory Austin Davis, Steven Andrew Lovell, John Vanderstaay Kenner
-
Patent number: 9033656Abstract: An exhaust system for a steam turbine provided with an improved annular flow guide in a high or intermediate turbine. The improved flow guide reduces flow turbulence in an exhaust hood and reduces pressure loss to thereby improve turbine plant efficiency. The shape (vertically symmetric) of a flow guide 5A according to a conventional technology was modified into the shape (vertically asymmetric) of a flow guide 5 such that the length of a downstream flow guide portion 5d is greater than that of a upstream flow guide portion 5u. Numerical analyses were performed to find the optimum flow guide occupation ratio of the conventional technology and the corresponding total pressure loss coefficient. The obtained values were used as reference values. Further, the flow guide occupation ratio of the upstream flow guide portion 5u was set at 0.4 and the flow guide occupation ratio of the downstream flow guide portion 5d was set at 0.Type: GrantFiled: January 4, 2012Date of Patent: May 19, 2015Assignee: Mitsubishi Hitachi Power Systems, Ltd.Inventors: Shunsuke Mizumi, Koji Ogata, Takeshi Kudo, Noriyo Nishijima, Yoshiaki Onda
-
Publication number: 20150128604Abstract: A flow path surface of a gas turbine engine at the location of a bladed component is disclosed in which the flow path surface includes a cylindrical upstream side and a conical downstream side. The bladed component is located at the intersection of the cylindrical upstream side and the conical downstream side. The cylindrical upstream side can extend from a leading edge of the bladed component, or a point upstream of it, to a location between the leading edge and trailing edge of the component. The conical downstream side can extend past the trailing edge of the bladed component. The bladed component can be a fan blade or a compressor blade.Type: ApplicationFiled: November 27, 2013Publication date: May 14, 2015Inventors: Bronwyn Power, Roy D. Fulayter, Jonathan M. Rivers
-
Publication number: 20150118015Abstract: An exhaust diffuser comprising an inner boundary and an outer boundary forming an annular gas path, and a plurality of strut structures extending radially within the gas path. Each of the strut structures include pressure and suction side walls, and a plurality of radially spaced flow injectors are formed in at least one of the pressure and suction side walls for injecting a fluid flow into the gas path adjacent to the strut structure. At least two fluid supply conduits provide a fluid flow to respective radially spaced flow injectors, and a flow control device is associated with each of the conduits to independently control a fluid flow from a fluid source to each of the radially spaced flow injectors.Type: ApplicationFiled: October 30, 2013Publication date: April 30, 2015Inventor: Pawel Matys
-
Publication number: 20150098811Abstract: Length adjustable braces (56, 56A-D) attached between a gas turbine exhaust diffuser (40) and an exhaust casing (34) along a horizontal joint (50) between upper and lower halves (40A, 40B) of the outer diffuser shell. Brace lengths are adjusted to align bolt holes (52A, 52B) in respective bolt bosses (43A, 43B) on the upper and lower halves of the shell. The braces may be turnbuckles (56, 67) welded to or releasably attached at one end to the shell and at the other end to the casing. Exemplary fittings on the diffuser shell and casing for the brace ends may be clevis fittings (62) or eye fittings (72). The fittings may be configured to support both tension (58) and compression (59) of each brace. Two opposed fittings (70A, 70B) across the joint may be configured for insertion of a respective clevis bolt (63A, 63C) in both fittings from the same side.Type: ApplicationFiled: October 4, 2013Publication date: April 9, 2015Inventors: Douglas R. Roth, Mrinal Munshi