Plane Intersects With Runner Blade Patents (Class 415/208.3)
  • Patent number: 10767658
    Abstract: An axial fan according to an exemplary embodiment of the present disclosure includes an impeller, a motor, and a housing. The impeller is configured to rotate about a rotation axis extending in a vertical direction. The motor is configured to rotationally drive the impeller. The housing is disposed radially outside the impeller and the motor. In a region overlapping in the vertical direction with the impeller, an inner wall surface of the housing includes at least one first wall having a narrow gap with a radially outer edge of the impeller and at least one second wall having a wide gap with the radially outer edge of the impeller.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: September 8, 2020
    Assignee: NIDEC CORPORATION
    Inventor: Ryosuke Ishida
  • Patent number: 10760588
    Abstract: In a centrifugal compressor including an impeller (70) having rotor blades (74), a shroud (72) surrounding the impeller, and a diffuser (76) having stator vanes (78), the shroud (72) includes a plurality of openings (80) opening toward the impeller (70) in a part thereof adjacent to an impeller outlet portion (42B), and a communication passage (82) communicating the openings (80) with one another, the openings including first openings (80A) that are arranged at a same interval as the stator vanes, and second openings (80B) arranged intermediately between the adjacent first openings.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: September 1, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Shu Taguchi
  • Patent number: 10731881
    Abstract: An air handling unit for use with an air conditioning system is provided including a housing duct through which air is circulated. A vane-axial flow fan circulates air through the housing duct. The fan includes an impeller having a plurality of fan blades extending therefrom and an axis of rotation arranged substantially in-line with a flow path of the air. A heat exchanger assembly is arranged within the housing duct in a heat transfer relationship with the air circulating through the housing duct.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: August 4, 2020
    Assignee: CARRIER CORPORATION
    Inventors: Yehia M. Amr, Ryan K. Dygert, Peter R. Bushnell
  • Patent number: 10718222
    Abstract: A diffuser-deswirler for a gas turbine engine is provided. The diffuser-deswirler includes an inner shell and an outer shell spaced apart and configured for receiving a flow of compressed air from a compressor of a gas turbine engine. A plurality of vanes extend between the inner shell and the outer shell to define a plurality of fluid passageways and a splitter extends along the circumferential direction between adjacent vanes to split the flow of compressed air passing through the each fluid passageway. All of these components are manufactured as a single monolithic piece and are configured for diffusing and deswirling compressor air before passing it to a combustor for an improved combustion process.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: July 21, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Christopher David King, David Vickery Parker, John Alan Manteiga, Matthew Brian Surprenant, Megan Lynn Williams, Awot Michael Berhe, Jesse Jacob Ollove
  • Patent number: 10711789
    Abstract: A shaftless motor-compressor is disclosed, comprising a casing and at least one compressor stage arranged in the casing. Each compressor stage comprises a respective impeller arranged for rotation in the casing around a rotation axis. Each impeller is combined with an embedded electric motor housed in the casing and comprised of a motor stator and a motor rotor. The motor stator of each compressor stage circumferentially surrounds the impeller and the motor rotor, integral with the impeller. The motor rotor of each stage is arranged inside the respective motor stator.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: July 14, 2020
    Assignee: NUOVO PIGNONE SRL
    Inventors: Sergio Palomba, Dante Tommaso Rubino
  • Patent number: 10605256
    Abstract: The invention refers to a fan system (10) comprising a fan shroud (14) and a ring fan (12) having a hub (30), a plurality of fan blades (32), and a ring structure (34). The ring structure (34) has a ring member (46) and a flange member (48), the ring member (46) having a hollow cylindrical shape, the flange member (48) extending radially outwardly from the ring member (46). The fan shroud (14) has an annular shroud flange (54), a shroud body (56) and a plurality of shroud guide vanes (58), the shroud flange (54) extending radially outwardly from the shroud body (56) and being disposed along the rotary axis (A) between the flange member (48) and the shroud body (56), the shroud body (56) being disposed about the ring member (46) and having a first body portion (70), a second body portion (72) and a divergent nozzle (74).
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: March 31, 2020
    Assignee: BorgWarner Inc.
    Inventors: Todd Michael Tyner, Tobias Moser, Frank Michael Haase
  • Patent number: 10584717
    Abstract: An information handling system comprising a chassis supporting a central processor, a graphics processor, a memory, and a power source and a dual opposite outlet blower system having a powered blower fan for rotating a plurality of blades within a dual opposite outlet blower system housing where the dual opposite outlet blower system housing includes first surface and a second surface oppositely disposed on either side of a rotational plane of the powered blower fan, a first side wall having a first notch extending internally along a diameter in the rotational plane of the powered blower fan and second side wall oppositely disposed to the first side wall and having a second notch extending internally along the opposite side of the diameter in the rotational plane of the powered blower fan.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: March 10, 2020
    Assignee: Dell Products, LP
    Inventors: Qinghong He, Arnold Thomas Schnell
  • Patent number: 10527059
    Abstract: A diffuser (10) comprises first (10.1) and second (10.2) annular portions bounded by forward (32) and aft (26) annular walls, wherein the first annular portion (10.1) is vaneless and radially within the second annular portion (10.2), and the second annular portion (10.2) is radially relatively compact and incorporates a plurality of vanes (48) with relatively high solidity, wherein the forward (32) or/and aft (26) annular walls is/are sloped so as to provide for meridional divergence within the second annular portion (10.2) of the diffuser (10), and the vanes (48) are shaped so as to substantially conform to the flow field within the second annular portion (10.2).
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: January 7, 2020
    Assignee: WILLIAMS INTERNATIONAL CO., L.L.C.
    Inventors: Dean S. Musgrave, Eric D. Reinhart
  • Patent number: 10458417
    Abstract: A centrifugal fan with axial-flow wind includes a centrifugal fan wheel and a cover shell. The centrifugal fan wheel has a rotating core structure and a plurality of centrifugal vanes arranged around the rotating core structure; a circular wind guide surface is disposed on an internal side of the cover shell and around the rotating core structure and covered onto the centrifugal vanes, such that the circular wind guide surface can change a centrifugal airflow at the external periphery of the centrifugal vane into an axial-flow airflow.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: October 29, 2019
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Shih-Kang Hsiung, Hung-Chi Chen, Meng-Yu Chen
  • Patent number: 10400789
    Abstract: In a compressor, comprising a housing including a flow-through air guiding section with an inlet duct, a wheel chamber formed downstream of the inlet duct for accommodating a compressor wheel, and a spiral duct formed downstream of the wheel chamber, wherein flow slots are formed in a transition region connecting the inlet duct with the wheel chamber, and the transition region extends both in the directions of the inlet duct and of the wheel chamber along a leading edge of the compressor wheel, the flow slots each extend along an axial first length (L1) and along a radial length (RL) with a cross-section (Q), which cross-section (Q) changes over the axial first length (L1) of the flow slots.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: September 3, 2019
    Assignee: CHARGING SYSTEMS INTERNATIONAL GMBH
    Inventors: Peter Harley, Andre Starke, Takahiro Bamba
  • Patent number: 10393016
    Abstract: An inlet manifold for a multi-tube pulse detonation engine includes a vaneless diffuser disposed in a first zone to collect an air discharged from a compressor; a vaned diffuser including a plurality of guide vanes disposed in a second zone to slow the air from the compressor; a plenum disposed in a third zone located next to second zone to provide the air from the compressor to chambers; and a splitter disposed in a fourth zone to split the air from the compressor into an airflow required by each pulse detonation tube for detonation.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: August 27, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: James D. Hill, Michael J. Cuozzo
  • Patent number: 10190601
    Abstract: A fan assembly (10) includes a shrouded fan rotor (24) including a plurality of fan blades (28) extending from a rotor hub (30) and rotatable about a central axis (26) of the fan assembly and a fan shroud (32) extending circumferentially around the fan rotor (24) and secured to the plurality of fan blades (28). The shroud (32) has a first axially extending annular portion (38) secured to the plurality of fan blades (28), a second axially extending annular portion (40) radially outwardly spaced from the first axially extending annular portion (38), and a third portion (44) connecting the first (38) and second (40) axially extending annular portions. A casing (22) is positioned circumferentially around the fan shroud (32) defining a radial clearance between the casing and the fan shroud. The casing (22) includes a plurality of casing elements (48) extending from a radially inboard surface (46) of the casing toward the shroud (32) and defining a radial element gap and an axial element gap.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: January 29, 2019
    Assignee: CARRIER CORPORATION
    Inventors: Ryan K. Dygert, Peter R. Bushnell
  • Patent number: 10066637
    Abstract: An impeller for a centrifugal fan includes a main plate having a disc shape, a plurality of blades arranged along a circumferential direction about a center part of the main plate, and an outer ring having a ring shape connecting the respective blades. The outer ring is connected to tip end portions of the respective blades at a side of a fluid discharge opening, and each of the blades has a shape which is bent in a rotating direction of the impeller in a vicinity of the tip end portion.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: September 4, 2018
    Assignee: Minebea Co., Ltd.
    Inventors: Tomoaki Nakano, Yasuhiro Kurosawa
  • Patent number: 9957807
    Abstract: A rotor assembly having a plurality of scoops disposed in a circumferential array, the scoops extending from an inner surface of the outer wall of the flow path along a radial distance smaller than a radial distance between the inner and outer walls of the flow path. Each of the scoops forms a closed channel from an inlet to an outlet with the inlet and outlet being axially spaced from one another, the outlet being upstream of and adjacent the annular blade path. A gas turbine engine and method of reducing tip vortices in a rotor assembly are also discussed.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: May 1, 2018
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Enzo Macchia
  • Patent number: 9932896
    Abstract: The invention relates to an exhaust-gas turbocharger (1) having a compressor housing (3), having a bearing housing (28) which can be connected at one end to the compressor housing (3) by means of a first fastening device (19), and having a turbine housing (2) which can be connected to the bearing housing (28) at the other end of the latter by means of a second fastening device (20), with the compressor housing (3), the bearing housing (28) and the turbine housing (2) extending along an exhaust-gas turbocharger longitudinal axis (R), wherein the first fastening device (19) is designed as a plug-and-twist connecting device.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: April 3, 2018
    Assignee: BorgWarner Inc.
    Inventor: Thomas Lischer
  • Patent number: 9909485
    Abstract: A cooling fan module includes a frame, and a fan impeller having a plurality of fan impeller blades is located in an opening of the frame. The fan impeller blades are connected to a base portion of an outer fan ring. A lip portion of the outer fan ring extends from the base portion radially outward, and a leading end of the lip portion is turned in direction to the downstream side of the frame. A recirculating flow guiding device includes a plurality of guide vanes located on an upstream side of the frame and around the opening of the frame. An air gap is provided between the outer fan ring and the frame. A recirculating flow travels from downstream side of the cooling fan module through the air gap, and is turned by the leading end of the lip portion into the recirculating flow guiding device.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: March 6, 2018
    Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg
    Inventor: Tao Hong
  • Patent number: 9657573
    Abstract: An object is to provide a mixed flow turbine, wherein intermediate blades having an intermediate height are provided between main blades of the mixed flow turbine, thus improving an impulse blade turbine characteristic and reducing the moment of inertia for a rotor blade as a whole, thereby improving the efficiency and transient response.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: May 23, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Hirotaka Higashimori
  • Patent number: 9295180
    Abstract: A centrifugal fan is provided. The centrifugal fan includes an impeller and a housing. The impeller has an impeller diameter. The housing includes an upper plate, a lower plate and a side wall, wherein the upper plate axially corresponds to the lower plate, a side wall is formed between the upper plate and the lower plate, an axial inlet is formed on the upper plate, a lateral outlet is formed on the side wall, the impeller is disposed in the housing and corresponds to the inlet, and a flow path communicates the inlet to the outlet, wherein a greatest width of the inlet is greater than or equal to the impeller diameter.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 22, 2016
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: Chao-Wen Lu
  • Patent number: 9187723
    Abstract: A method for culturing algae comprising, forming an emulsion comprising a gaseous stream and a media utilizing a high shear device, wherein the emulsion comprises gas bubbles, and wherein the high shear device comprises at least one toothed rotor and at least one stator; introducing the emulsion into a bioreactor; and introducing an algae into the bioreactor for growing the algae culture. Additionally, a method for producing liquids from an algae culture, the method comprising forming an emulsion comprising a buffer and algal components, wherein the emulsion comprises algal component globules; separating algal hydrocarbons; and processing algal hydrocarbons to form liquid hydrocarbons. Additionally, a system for producing liquids from an algae culture comprising at least one high shear device.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: November 17, 2015
    Assignee: H R D Corporation
    Inventors: Abbas Hassan, Aziz Hassan, Rayford G. Anthony, Gregory G. Borsinger
  • Patent number: 9028209
    Abstract: A pipeline pump shaped by stamping and welding, comprises a pump body, a pedestal, a pump rear cover and a motor installed at the opening of the pump body, and an impeller arranged inside the pump body. The pump body is comprised of an inner cylinder and an outer cylinder. A flow guide part, the impeller, an exhaust part, and the pump rear cover mounted on the opening of the outer cylinder are coaxially arranged upwards in turn from the opening of the inner cylinder. The impeller is axial suction and radial discharge. The disk bottom of the flow guide part is sealed with the opening of the inner cylinder. The impeller is coaxially arranged inside the flow guide part, and a flow guide vanes corresponding to a radial exhaust port of the impeller are provided on a circumferential wall of the flow guide part.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: May 12, 2015
    Assignee: Guangdong Winning Pumps Industrial Co., Ltd.
    Inventors: Yuanmin Liang, Guolong Chen, Fuhui Zhong, Hongqi Ren, Dongxian Liang, Chunyuan Huo
  • Patent number: 9022732
    Abstract: A centrifugal pump is provided capable of pumping liquid volume flow rates of at least 20 m3/sec. The pump includes a centrifugal impeller rotatable about an axis and operable to direct a liquid towards a concrete volute arranged around the impeller. The pump further includes fixed fin-like elements arranged between the impeller and the volute. The elements form a discontinuous barrier around the impeller and are effective to reduce uneven radial thrusts exerted by the water on the centrifugal impeller, while limiting the water flow rate in a simple and economic manner.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: May 5, 2015
    Assignee: Alstom Technology Ltd.
    Inventors: Romain Julien Mathieu Prunieres, Florent Longatte, Franvois-Xavier Catelan
  • Patent number: 9004850
    Abstract: A compressor for a gas turbine engine with variable inlet guide vanes each defining an airfoil portion twisted such that at each location of the airfoil portion along the pivot axis, an angle is defined between a respective chord extending between the leading and trailing edges and a same reference plane containing the pivot axis and extending radially with respect to the compressor. The angle, which is measured along a direction of rotation of the rotor, varies from a minimum value near the hub side wall to a maximum value near the shroud side wall. A method of reducing vortex whistle in a radial inlet of a compressor is also provided.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: April 14, 2015
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Jason Nichols, Hien Duong, Peter Townsend
  • Patent number: 8926276
    Abstract: Turbomachines having close-coupling flow guides (CCFGs) that are designed and configured to closely-couple flow fields of adjacent bladed elements. In some embodiments, the CCFGs may be located in regions extending between the adjacent bladed elements, described herein as coupling avoidance zones, where conventional turbomachine design would suggest no structure should be added. In yet other embodiments, CCFGs are located upstream and/or downstream of rows of blades coupled to the bladed elements, including overlapping one of more of the rows of blades, to improve flow coupling and machine performance. Methods of designing turbomachines to incorporate CCFGs are also provided.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: January 6, 2015
    Assignee: Concepts ETI, Inc.
    Inventor: David Japikse
  • Publication number: 20140328676
    Abstract: A compressor that includes an impeller, a diffuser and a shroud. The diffuser includes vanes and one or more projections, each of which extends from a top of a vane. The shroud includes one or more holes. The shroud covers the impeller and the diffuser such that each projection protrudes through one of the holes. The shroud is then secured to the projections by an adhesive.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 6, 2014
    Applicant: Dyson Technology Limited
    Inventors: Donald Victor ROBSON, Gary KING
  • Publication number: 20140271170
    Abstract: Centrifugal compressors, methods of forming centrifugal compressors, and methods of designing diffuser vanes in centrifugal compressors are provided herein. In an embodiment, a method of designing diffuser vanes includes providing an initial two-dimensional diffuser vane layout including initial diffuser vane peripheries radially spaced about an axis. The initial diffuser vane peripheries are rotated using a computer processor to produce rotated diffuser vane peripheries having offset trailing ends relative to the initial diffuser vane peripheries. The rotated diffuser vane peripheries are circumferentially shifted about the axis to produce shifted diffuser vane peripheries. Leading ends of the shifted diffuser vane peripheries are offset from the leading ends of the initial diffuser vane peripheries. Diffuser vane surfaces are generated that connect the shifted diffuser vane peripheries to the corresponding initial diffuser vane peripheries to form diffuser vanes in a twisted configuration.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventor: Greg Holbrook
  • Patent number: 8820072
    Abstract: A diffuser plate for a centrifugal compressor includes an inner edge disposed at an inner diameter about a central axis; an outer edge disposed at an outer diameter, the outer edge displaced an axial distance from the inner edge; a deformable section that includes a substantially S-shaped cross-section, the deformable section disposed between the inner edge and the outer edge; and a spring constant for forced axial displacement of the outer edge with respect to the inner edge, the spring constant characterized, at least in part, by the deformable section.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: September 2, 2014
    Assignee: Honeywell International Inc.
    Inventors: Giorgio Figura, Parikshit I Mulani, Poomkuzhimannil Zachariah John, Shajeev Surendran, T. G. Vijayan
  • Patent number: 8809025
    Abstract: A method for culturing algae comprising, forming an emulsion comprising a gaseous stream and a media utilizing a high shear device, wherein the emulsion comprises gas bubbles, and wherein the high shear device comprises at least one toothed rotor and at least one stator; introducing the emulsion into a bioreactor; and introducing an algae into the bioreactor for growing the algae culture. Additionally, a method for producing liquids from an algae culture, the method comprising forming an emulsion comprising a buffer and algal components, wherein the emulsion comprises algal component globules; separating algal hydrocarbons; and processing algal hydrocarbons to form liquid hydrocarbons. Additionally, a system for producing liquids from an algae culture comprising at least one high shear device.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: August 19, 2014
    Assignee: H R D Corporation
    Inventors: Abbas Hassan, Aziz Hassan, Rayford G. Anthony, Gregory G. Borsinger
  • Fan
    Patent number: 8784049
    Abstract: A floor standing pedestal fan for creating an air current includes a base housing an impeller and a motor for rotating the impeller to create an air flow, an air outlet, and a telescopic duct for conveying the air flow to the air outlet.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: July 22, 2014
    Assignee: Dyson Technology Limited
    Inventors: Peter David Gammack, James Dyson
  • Publication number: 20140199167
    Abstract: A compressor housing for an air cycle machine is provided. The compressor housing includes a body having a compressor volute configured to provide centrifugal compression in the air cycle machine. A mating surface is integrally formed with the body. The mating surface includes a plurality of substantially equally angularly spaced bosses. The bosses include a first boss type at a first radial distance and configured to receive a threaded fastener coupled to a turbine nozzle of the air cycle machine. The bosses also include a second boss type at a second radial distance configured to secure a seal plate of the air cycle machine. The second radial distance is less than the first radial distance. A ratio of a number of the bosses of the first boss type to the second boss type is 17 to 2.
    Type: Application
    Filed: April 26, 2013
    Publication date: July 17, 2014
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Craig M. Beers, Brent J. Merritt, Christopher McAuliffe
  • Patent number: 8641373
    Abstract: A diffuser for a mixed flow or centrifugal compressor of a gas turbine. The diffuser includes at least one vane presenting a pressure side, a suction side, and a first flank. The vane includes a plurality of orifices opening out into the suction side and/or the pressure side and communicating with at least one cavity formed in the vane, the cavity extending transversely relative to the vane and opening out into its first flank. The cross section of the cavity varies in the transverse direction of the vane, the cross section increasing towards the first flank.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: February 4, 2014
    Assignee: Turbomeca
    Inventors: Jérôme Porodo, Laurent Tarnowski, Hubert Vignau
  • Patent number: 8616836
    Abstract: A system, in certain embodiments, includes a plurality of detachable, three-dimensional diffuser vanes attached to a diffuser plate of a centrifugal compressor. In certain embodiments, the detachable, three-dimensional diffuser vanes may be attached to the diffuser plate using threaded fasteners. In addition, dowel pins may be used to align the detachable, three-dimensional diffuser vanes with respect to the diffuser plate. However, in other embodiments, the detachable, three-dimensional diffuser vanes may include a tab configured to fit securely within a groove in the diffuser plate. In addition, the tabs of the detachable, three-dimensional diffuser vanes may include indentions that mate with extensions extending from the diffuser plate, wherein the tabs may slide into slots between the extensions and the grooves of the diffuser plate.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: December 31, 2013
    Assignee: Cameron International Corporation
    Inventors: Noel Blair, Charles F. Herr, David N. O'Neill
  • Patent number: 8616841
    Abstract: A diffuser that includes a plurality of radial vanes having a blade count of between 15 and 20, a solidity of between 0.6 and 0.8, and a radius ratio of vane inlet to impeller outlet of less than 1.5. Additionally, a compressor that incorporates the diffuser.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: December 31, 2013
    Assignee: Dyson Technology Limited
    Inventor: Mark Andrew Johnson
  • Patent number: 8596968
    Abstract: A diffuser is provided having a number of diffuser channels defined by a top wall, bottom wall, and two sidewalls. The sidewalls can be constructed according to an involute of a circle which provides constant interwall distance between the sidewalls along the length of the diffuser channel. The top and bottom walls, however, diverge from one another along the length of the diffuser channel to provide a desired diffusion.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: December 3, 2013
    Assignee: Rolls-Royce North American Technologies, Inc.
    Inventor: Calvin W. Emmerson
  • Patent number: 8585348
    Abstract: A centrifugal compressor may comprise a wheel and a pipe diffuser. The pipe diffuser may comprise an annular pipe diffuser section and at least one cylindrical hole passing through the annular pipe diffuser section for compressing gas emerging from the wheel. The at least one cylindrical hole may have an axis that is slanted at an angle A relative to a plane that is orthogonal to an axis of rotation of the compressor.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: November 19, 2013
    Assignee: Honeywell International, Inc.
    Inventors: Frank Lin, Adonis Spathias
  • Patent number: 8540484
    Abstract: A wedge-type diffuser includes a diffuser floor and a plurality of wedge-shaped vanes. The wedge-shaped vanes extend from the diffuser floor and have a top surface, a leading edge and a trailing edge. Each of the wedge-shaped vanes has a slot extending from the trailing edge toward the leading edge.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: September 24, 2013
    Assignee: United Technologies Corporation
    Inventors: Timothy M. Hollman, Kevin K. Taft, Gordon F. Jewess
  • Patent number: 8511981
    Abstract: A system, in certain embodiments, includes a centrifugal compressor diffuser that includes an elliptical plate including multiple vane receptacles disposed about an axis of the plate and multiple detachable vanes attached to the plate. Each vane receptacle includes a first two dimensional (2D) projection along a plane of the elliptical plate and each detachable vane includes a second two dimensional (2D) projection along a base portion of the vane, where each detachable vane is disposed in a respective vane receptacle with the first and second 2D projections blocking movement of the detachable vane in at least a first axial direction relative to the elliptical plate. In certain embodiments, the first and second 2D projections may include a first tab to fit in a recess between a pair of second tabs, respectively, or vice versa. However, in other embodiments, the first and second 2D projections may include alternative mating surfaces.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: August 20, 2013
    Assignee: Cameron International Corporation
    Inventors: Robert C. Small, Charles F. Herr, David N. O'Neill
  • Fan
    Patent number: 8469658
    Abstract: A floor standing pedestal fan for creating an air current includes a base housing an impeller and a motor for rotating the impeller to create an air flow, an air outlet, and a telescopic duct for conveying the air flow to the air outlet.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: June 25, 2013
    Assignee: Dyson Technology Limited
    Inventors: Peter David Gammack, James Dyson
  • Patent number: 8424305
    Abstract: A turbocharger unit (18) for an internal combustion engine (10) with at least one exhaust line (15, 16) for conducting exhaust gases away from the combustion chamber (11) of the engine and at least one inlet line (12) for supplying air to the combustion chamber. The turbocharger unit includes a turbine (17) which interacts with a compressor (19) for extracting energy from the exhaust gas flow of the engine and pressurizing the inlet air of the engine. The compressor (19) is of radial type and provided with an impeller with backswept blades (35) where the blade angle (?b2) between an imaginary extension of the center line of the blade between root section and tip section in the direction of the outlet tangent and a line (36) which connects the center axis of the impeller to the outer tip of the blade is at least roughly 45°. The turbine (17) which drives the compressor (19) is of radial type.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: April 23, 2013
    Assignee: Volvo Lastvagnar AB
    Inventors: Lars Sundin, Magnus Ising, Sebastian Krausche, Per Andersson
  • Patent number: 8425179
    Abstract: A power turbine employs a plurality of turbine blades which allows the turbine to regulate pressure and ventilate for a greater ability to generate power without back pressure of the power source. It also relieves much of the stress on the uni-body construction. The vent ports (30) work at various times to transfer pressure naturally from one compartment to another, greatly increasing the balance of pressure throughout the process within the turbine.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: April 23, 2013
    Inventor: Daniel O. Hesting
  • Patent number: 8425188
    Abstract: A diffuser pipe (38) of a compressor diffuser assembly (28) for gas turbine engines defines a depressed local area (58) in the pipe wall of an upstream section of the diffuser pipe (38). The depressed local area (58) is bent into the diffuser pipe (38) to reduce the accumulation of fluid boundary layer and improve stall margin of the diffuser pipe (38).
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: April 23, 2013
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Andrey Petrovich Dovbush, Valery Ivanovich Kislov
  • Patent number: 8419352
    Abstract: A bypass turbojet engine including an outer fan duct and an inner fan duct (IFD), between which the secondary flow passes, and a high pressure compressor having an outer casing is disclosed. The IFD is fastened on the outer casing.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: April 16, 2013
    Assignee: SNECMA
    Inventors: Romuald Gentils, Stephane Rousselin
  • Patent number: 8313290
    Abstract: In a high pressure centrifugal compressor, the occurrence of rotating stall noticeable in a comparatively-low specific speed wheel stage is prevented, thereby high efficient fluid performance is obtained and reliability is improved. The centrifugal compressor has a first vaneless diffuser with a constant flow channel height on the downstream side of an impeller, and a second vaneless diffuser in which the flow channel height decreases in a flow direction from an inlet to an outlet on the downstream side of the first vaneless diffuser. These diffusers are combined with an impeller using thick blades.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: November 20, 2012
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Masanori Tanaka, Hideo Nishida, Hiromi Kobayashi, Tetsuya Kuwano, Toshio Itou
  • Patent number: 8267644
    Abstract: In a multistage centrifugal compressor, a plurality of impellers is attached to the same rotary shaft. Vaned Diffusers and vaneless diffusers are used, as diffusers, for respective compressor stages configuring the compressor. The vaned diffusers are continuously used from the first compressor stage to the middle compressor stage, and the vaneless diffusers are used for the last compressor stage and the previous stage. While high efficiency is maintained at the compressor stages having the vaned diffusers, an operating flow range is secured at the compressor stages having the vaneless diffusers.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: September 18, 2012
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Hideo Nishida, Hiromi Kobayashi, Masanori Tanaka, Tetsuya Kuwano, Toshio Itou, Takanori Shibata, Manabu Yagi
  • Patent number: 8197195
    Abstract: A turbocharger having a variable nozzle with stepped two-stage vanes (50), the variable nozzle comprising a tubular piston (70) disposed in the bore (44) of the turbine housing (38) such that the piston (70) is axially slidable adjacent to the vanes (50) that extend across the nozzle. Each vane defines a first vane stage (50a) proximate the free end of the vane, the second vane stage (50b) having a different aerodynamic contour in comparison with the first vane stage (50a), each vane comprising a step (60) transitioning from the first vane stage (50a) to the second vane stage (50b). The piston (70) in a closed position closes the second vane stage (50b) so that exhaust gas flows only through the first vane stage (50a). The second vane stage (50b) is progressively opened as the piston (70) is axially slid toward an open position.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: June 12, 2012
    Assignee: Honeywell International Inc.
    Inventors: Alain R. Lombard, Sebastian Ferrari, Laurent Vautier, Valerie Bribant
  • Patent number: 8152488
    Abstract: A blower for a vacuum cleaner has a diffuser with an increased efficiency by coupling the attack angle A of the diffuser vanes with the attack angle B of the return guide vanes where angle A is between 4° and 6° and angle B is between 6° and 20°.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: April 10, 2012
    Assignee: Johnson Electric S.A.
    Inventor: Chuan Hui Fang
  • Patent number: 8147186
    Abstract: A centrifugal compressor having a wide operating range, being economically efficient and high reliability in terms of a stable operation is provided. A centrifugal compressor including a partition wall for dividing a flow channel in the diffuser section and the volute section into a plurality of channels in the direction of circulation of the fluid so as to define a hub-side flow channel and a shroud-side flow channel; and a flow rate adjusting valve for lowering the flow rate of the fluid flowing in the shroud-side flow channel to increase the flow rate in the hub-side flow channel when the flow rate of the fluid compressed by an impeller is low and not lowering the flow rate of the fluid flowing the shroud-side flow channel to allow the fluid to flow both in the shroud-side flow channel and the hub-side flow channel when the flow rate of the fluid compressed by the impeller is high is employed.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: April 3, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Seiichi Ibaraki, Isao Tomita, Yasuaki Jinnai, Takashi Shiraishi, Koichi Sugimoto
  • Patent number: 8142148
    Abstract: A diffuser-nozzle assembly mounted at the outlet from a centrifugal compressor is disclosed. The assembly includes a plurality of vanes carried by a radially inner wall forming a surface of revolution and surrounded by an outer casing, elastically deformable devices interposed between the radially outer ends of the vanes of the nozzle and the outer casing. The elastically deformable devices prevent air from passing between the outer casing and the radially outer ends of the vanes.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: March 27, 2012
    Assignee: SNECMA
    Inventors: Didier Hippolyte Hernandez, Romain Nicolas Lunel
  • Patent number: 8075263
    Abstract: An air guide apparatus includes a body installed at a discharge side of a rotary fan for sucking air, a plurality of first vanes arranged at one surface of the body to guide air sucked by the rotary fan toward the outer circumferential surface of the body, and a plurality of second vanes arranged on the other side of the body to guide air which has been guided by the first vanes from the outer circumferential surface of the body toward a central portion, formed in a spiral shape from the central portion of the body toward the outer circumferential surface of the body, and having disconnected portions formed at middle portions thereof.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: December 13, 2011
    Assignee: LG Electronics Inc.
    Inventor: Kwang-Woon Ahn
  • Patent number: 8056336
    Abstract: A variable nozzle for a turbocharger includes a plurality of vanes rotatably mounted on a nozzle ring and disposed in a nozzle flow path defined between the nozzle ring and an opposite nozzle wall. Either or both of the faces of the nozzle ring and nozzle wall include(s) at least one step that defines sealing surfaces positioned to be substantially abutted by airfoil surfaces of the vanes in the closed position of the vanes and to be spaced from the airfoil surfaces in positions other than the closed position. This substantial abutment between the airfoil surfaces and the sealing surfaces serves to substantially prevent exhaust gas from leaking past the ends of the airfoil portions. At the same time, clearances between the nozzle ring face and the end faces of the airfoil portions can be sufficiently large to prevent binding of the vanes under all operating conditions.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: November 15, 2011
    Assignee: Honeywell International Inc.
    Inventors: Philippe Arnold, Dominique Petitjean, Anthony Ruquart, Guillaume Dupont, Denis Jeckel
  • Patent number: 8047777
    Abstract: A turbomachine comprising an annular combustion chamber (40) with injection orifices (44); a centrifugal compressor (10) having a centrifugal downstream stage and an annular diffuser (20) comprising: a radially-oriented upstream portion (21)with diffusion passages (22) connected to the outlet of the compressor and an elbow-shaped intermediate portion (24)and a downstream portion (25) comprising a series of flow-straightening vanes (26) and inclined relative to the axis (A) of the turbomachine. In the section plane containing the axis (A) of the turbomachine and passing via the center (C) of one of said injection orifices (44), the curvilinear abscissa distance along a flow line (L) between the middle (0) of the flow path at the trailing edges of the flow-straightening vanes (26) and said center (C) is greater than or equal to three times the height (h) of said flow path.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: November 1, 2011
    Assignee: SNECMA
    Inventors: Patrice Andre Commaret, Michel Andre Albert Desaulty, Romain Nicolas Lunel, Pascale Rollet