Scroll-type Casing Patents (Class 415/204)
  • Patent number: 10794515
    Abstract: A discharge for a fluid system has an inlet and an outlet in which a fluid flows from the discharge inlet to the discharge outlet. The discharge inlet has a inlet cross-sectional area. The discharge outlet has a plate. The plate has a plurality of radially extending ribs. The radially extending ribs are equiangularly spaced about a center axis of the plate. The radially extending ribs define a plurality of radially extending slots between the equiangularly spaced apart ribs. The radially extending ribs are dimensioned such that a sum of an area of all of the radially extending slots is greater than the discharge inlet cross-sectional area. When the fluid flows through the plate slots from the discharge outlet, it has a discharge coefficient of greater than 0.4.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: October 6, 2020
    Inventors: Thomas A. Hartman, Brian T. Hartman, Catherine A. Hartman
  • Patent number: 10677265
    Abstract: A spiral housing of a radial fan has a flow cross-sectional area which, starting from a housing tongue, increases in the circumferential direction, around a fan impeller which can be arranged on an axial central axis. The cross-sectional area is determined via a contour of at least one axial side part of the spiral housing. The one axial side part has an axial suction opening with an opening edge section surrounding the suction opening, which is directly adjoined, viewed in the radial direction, by a transition section extending in the circumferential direction. The transition section, in a starting section which extends from the housing tongue in the circumferential direction over a predetermined angle, is spaced apart in the axial direction relative to the opening edge section and has a course which increases the flow cross section in the circumferential direction until axial surfaces of the opening edge section and of the transition section extend in the same plane.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: June 9, 2020
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Daniel Gebert, Oliver Haaf
  • Patent number: 10633777
    Abstract: The present invention relates to a laundry-care appliance (100) having a washing tub (107) and a deodorizing module (109) for dispensing deodorizing substance into the washing tub (107), wherein the deodorizing module (109) is connected to the washing tub (107) and comprises a radial fan (115) for ventilating the washing tub (107), wherein the radial fan (115) is drivable in a first direction of rotation (121) and in a second direction of rotation (123). The deodorizing module (109) is configured to dispense deodorizing substance into the washing tub (107) in a first period of time, wherein the radial fan (115) is drivable in the first direction of rotation (121) in the first period of time in order to distribute the deodorizing substance in the washing tub (107). The radial fen (115) is drivable in the second direction of rotation (123) in a second period of time following the first period of time, in order to remove the deodorizing substance from the washing tub (107) in the second period of time.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 28, 2020
    Assignee: BSH Hausgeräte GmbH
    Inventors: Jörg Skrippek, Torsten Böttger, Sven Baumgarten, Ingo Schulze
  • Patent number: 10630146
    Abstract: A rotor of a vehicle AC generator according to the present invention is the rotor of the vehicle AC generator which includes: magnetic pole cores; a field coil wound around the magnetic pole cores; and cooling fans fixed to the magnetic pole cores. In the rotor of the vehicle AC generator, each cooling fan includes: a base portion fixed to the axial end surfaces of the magnetic pole cores; a plurality of blade portions which are each axially arranged in a standing condition from the base portion; and a base rib which is provided in the base portion at a position apart from each root portion of the plurality of the blade portions and arranged in parallel to the extending direction of the blade portion.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: April 21, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shiro Iizuka, Masao Akiyoshi
  • Patent number: 10598190
    Abstract: A disclosed centrifugal blower comprises: a centrifugal fan; a scroll casing which is configured so as to surround the centrifugal fan, has an air inlet on at least one surface thereof, has an air outlet on one side thereof, and guides, to the air outlet, air discharged from the centrifugal fan; an expansion part which is provided at the air outlet and is configured such that the cross-sectional area of the flow path is expanded in the air discharge direction; and a dividing plate which is provided in the expansion part, is arranged at the outside of the air outlet and is arranged lengthwise along the flow direction of the air discharged from the air outlet.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: March 24, 2020
    Assignee: COWAY CO., LTD.
    Inventors: Sung-Jin Kim, Sang-Gu Sim, Myung-Jin Park, Bong-Suk Kim, Chan-Jung Park
  • Patent number: 10570919
    Abstract: A centrifugal fan includes: an impeller driven by a drive motor to rotate; a scroll casing including an inlet-port face having an opening and a wall portion having positions at which distances from an axis line that is a rotation center of the impeller differ from each other, and changing an air flow in a centrifugal direction generated by rotation of the impeller into an air flow in one direction; an air admitting portion including a bell mouth portion having a large-diameter side end placed on an inlet-air-flow upstream side of the inlet-port face; and a protruding portion extending from the air admitting portion in a direction orthogonal to the axis line, which is the rotation center of the impeller, and in a direction away from the rotation center and surrounding part of the bell mouth portion.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: February 25, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Keijiro Yamaguchi, Kazuki Okamoto, Hitoshi Kikuchi, Takahiro Kosaki
  • Patent number: 10544703
    Abstract: Turbine housing assemblies and related turbocharger systems are provided. One exemplary turbine housing assembly includes a core structure having a voided inner region defining an axial outlet and an outer surface defining an inner contour of a volute and an inner sheet metal shell having an inner base portion defining an inlet in fluid communication with the volute and a volute portion defining an outer contour of the volute, wherein at least a portion of the core structure defining the axial outlet extends in an axial direction through an opening in the inner sheet metal shell defined by the volute portion. The turbine housing assembly also includes an outer sheet metal shell surrounding the volute portion and including an outer base portion circumscribing the inner base portion.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: January 28, 2020
    Assignee: GARRETT TRANSPORTATION I INC.
    Inventors: Katsumi Azuma, Kouichirou Ishihara
  • Patent number: 10495092
    Abstract: Disclosed is an impeller for a pump for conveying waste water having a support body which can be rotated about an axis of rotation (A) and on which two blades for conveying are provided, wherein the blades each have an inlet region which extends from an inlet edge up to an apex, wherein the wall thickness increases at its end side remote from the support body in the inlet region from the inlet edge and reaches its maximum value at the apex, wherein the blade converges in the inlet region in an axial direction from the support body to the end side with respect to the wall thickness. A base plate is furthermore proposed for interaction with such an impeller as well as a pump for conveying waste water.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: December 3, 2019
    Assignee: Sulzer Management AG
    Inventors: Kais Haddad, Horst-Paul Klein
  • Patent number: 10436069
    Abstract: Turbine housing assemblies and related turbocharger systems are provided. One exemplary turbine housing assembly includes and inner shell and an outer shell. The inner shell includes an inner base portion defining an inlet and a volute portion defining an outer contour of a volute in fluid communication with the inlet. The outer shell circumscribing the volute portion in a radial plane and includes an outer base portion circumscribing the inner base portion. The inner shell includes a first plurality of sheet metal structures joined to one another in the radial plane, the outer shell includes a second plurality of sheet metal structures, and first portions of the second plurality of sheet metal structures surrounding the volute portion are joined to one another in an axial plane transverse to the radial plane.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: October 8, 2019
    Assignee: GARRETT TRANSPORTATION I INC.
    Inventors: Katsumi Azuma, Kouichirou Ishihara
  • Patent number: 10415601
    Abstract: A blower assembly including a housing, a blower within the housing, and a cut-off that is within the housing downstream of the blower with respect to direction of airflow generated by the blower. Openings are defined by the cut-off. The openings are configured to permit airflow generated by the blower to pass through the openings and to a discharge outlet of the blower assembly. The openings are further configured to reduce blower frequency tone generated as airflow passes across the cut-off.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: September 17, 2019
    Assignees: DENSO International America, Inc., DENSO CORPORATION
    Inventors: Prakash Thawani, Stephen Sinadinos
  • Patent number: 10400778
    Abstract: A centrifugal pump including a pump chamber, a wear plate, and a rotatable impeller is disclosed. The wear plate has a suction inlet. The pump chamber includes a high pressure region around the impeller within the pump chamber. The impeller's front face has portion located adjacent the wear plate to form a recirculation zone in fluid communication with the high pressure region. Another portion of the impeller's front face forms a small running clearance between it and a portion of the wear plate. That running clearance is interposed between the recirculation zone and the suction inlet. The wear plate includes plural deflector vanes projecting into the recirculation zone. A portion of the front face of the impeller includes plural pump-out vanes in the recirculation zone. The deflector vanes cooperate with the pump-out vanes to expel abrasive particles and prevent them from collecting and eroding the running clearance.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: September 3, 2019
    Assignee: Cornell Pump Company
    Inventors: James Garvin, Bryan Enterline, Carl Grompe, Andrew Enterline
  • Patent number: 10215188
    Abstract: A motor casing is provided with a motor rib which is annularly formed along a circumferential direction of a fan while protruding toward a main shroud, and the motor rib is provided with a notch portion in a portion near a high-pressure region in a scroll chamber. A part of moisture flowing into the scroll chamber infiltrates into an inner peripheral space of the motor rib across the motor rib in a low-pressure region in which a flow velocity of ventilation air is high in the scroll chamber. However, the moisture is pressed to the notch portion by ventilation air infiltrating into the inner peripheral space of the motor rib from the low-pressure region in the scroll chamber, and is then discharged to the scroll chamber from the notch portion.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: February 26, 2019
    Assignee: DENSO CORPORATION
    Inventor: Chie Watanabe
  • Patent number: 10179497
    Abstract: A ventilation bed for a vehicle may include an air conditioning system configured to supply air at a required temperature, a pad divided into a plurality of regions, and an airflow control apparatus configured to deliver the air supplied from the air conditioning system into the pad by controlling an amount and direction of the air, in which the air may be selectively supplied into at least a region of the pad depending on operation of the airflow control apparatus.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: January 15, 2019
    Assignee: Hyundai Motor Company
    Inventor: SangJun Kim
  • Patent number: 10087940
    Abstract: An assembly can include a turbine wheel; a turbine housing that includes a lower turbine housing surface that extends from an exhaust volute to a cylindrical surface that defines an upper portion of a turbine wheel space; a shroud component that includes a contoured surface disposed between an inner end of an upper shroud component surface and an inner end of a lower shroud component surface where the contoured surface defines a lower portion of a turbine wheel space; and a seal mechanism where the turbine housing and the shroud component form an axial gap between a lower axial position of the cylindrical surface and an upper axial position of the contoured surface where the axial gap is axially positioned between an axial position of an inducer portion of the turbine wheel and an axial position of an exducer portion of the turbine wheel.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: October 2, 2018
    Assignee: Honeywell International Inc.
    Inventors: Arnaud Gerard, Shankar Pandurangasa Solanki, Vincent Eumont, Nicolas Morand, Francis Abel, Pierre Barthelet
  • Patent number: 10024334
    Abstract: A fan frame of a centrifugal fan comprises a housing and an inlet structure. The housing includes an opening. The inlet structure is disposed at the opening and includes a top portion and an edge portion. The top portion is disposed around the opening and includes a plurality of first chamfering angles, at least one of the chamfering angles is different from the others. The edge portion extends from the top portion to the inside of the housing through the opening and includes a plurality of second chamfering angles. A centrifugal fan including the fan frame is also disclosed.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: July 17, 2018
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Tsung-Yu Lei, Ching-Hua Wu
  • Patent number: 10024335
    Abstract: In some embodiments, a plenum of an apparatus for transferring energy between a rotating element and a fluid may include a through hole disposed through the plenum; a plurality of inlet guide vanes disposed proximate a peripheral edge of the through hole, the plurality of inlet guide vanes comprising a first group of inlet guide vanes having a symmetrical profile, a second group of inlet guide vanes, and a third group of inlet guide vanes, wherein each inlet guide vane of the second group and third group have a cambered profile, and wherein each inlet guide vane of the third group has a different cambered profile from each other inlet guide vane of the third group.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: July 17, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Ismail Hakki Sezal, Christian Aalburg, Rajesh Kumar Venkata Gadamsetty, Matthias Carl Lang, Venkata Rama Krishna Chaitanya Ongole, Alberto Scotti del Greco
  • Patent number: 9989067
    Abstract: Blower includes: scroll casing, centrifugal impeller and a motor. Scroll casing includes: recessed portion formed outside lateral plate concentrically with centrifugal impeller; inner-circumferential flat portion disposed more on an inner circumference than recessed portion; and outer-circumferential flat portion disposed more on an outer circumference than recessed portion. Bottommost surface of recessed portion is disposed on a same plane as lateral plate end surface of lateral plate. Angle ?a made by inner-circumferential flat portion and recessed portion inner surface of recessed portion on an inner circumference is set to a value which falls within a range of 90° or more to 120° or less.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: June 5, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Fujisono, Ippei Oda
  • Patent number: 9976757
    Abstract: A computer room air conditioner (CRAC) unit includes a housing having an inlet configured to receive IT air and an outlet configured to exhaust treated air. The CRAC unit further includes a heat exchanger supported by the housing and disposed between the inlet and the outlet of the housing and at least one fan module supported by the housing. The at least one fan module is configured to draw IT air into the housing through the inlet, direct IT air through the heat exchanger, and exhaust treated air through the outlet. The CRAC unit further includes an airfoil frame secured to the housing at the inlet of the housing.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: May 22, 2018
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventor: Daniele Marchetti
  • Patent number: 9964118
    Abstract: A sirocco fan is provided that may include an impeller, in which a plurality of first blades and a plurality of second blades are formed on a main plate, and a scroll housing that covers the impeller. The scroll housing may include air suction holes formed on both of first and second plates and a rounded portion formed to be convex in an opposite direction of the impeller on a scroll that connects both of the first and second plates. An interval from the main plate to the rounded portion in a direction perpendicular to a rotation central axis of the impeller may be the largest. A rapid change in direction of air flowing to the scroll from the impeller may be minimized, and collision of air with the scroll may be lessened, reducing a flow loss and enhancing efficiency.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: May 8, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Byung Il Park, Byung Soon Kim, Sun Jong Noh, Kam Gyu Lee, Kyong Min Kwon
  • Patent number: 9957975
    Abstract: Provided is an improved architecture for rotary kinetic fluid motors and pumps, in which working fluid gains or loses pressure by flowing through an alternating sequence of radial-flow impellers and radial-flow fluid vortices, the impellers and fluid vortices all rotating around a single axis and in a common direction at staggered speeds, each vortex being the product of rotating fluid that is flowing radially through a bladeless annular volume.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: May 1, 2018
    Inventor: Corey B. Kuhns
  • Patent number: 9835165
    Abstract: A turbine housing assembly includes a plurality of constituent members connected to one another and easily manufactured. The turbine housing assembly includes a scroll part, an annular lid part, an exhaust gas outlet and a connection part connectable to a bearing housing for a turbine shaft. The scroll part and the connection part are each formed of a single piece of sheet metal and each is welded to the annular lid part that is orthogonal to a turbine axial direction so that the scroll part and the connection part are connected to each other via the annular lid part. Such a turbine housing assembly is of reduced weight, is quite easy to manufacture, of reduced cost, and can be made, at least in part, of materials having lower heat capacity as compared to conventional turbine housings made of sheet metal.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: December 5, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yasuaki Jinnai, Hiroyuki Arimizu, Koen Kramer
  • Patent number: 9755479
    Abstract: A motor may include a rotating body having: a shaft pin; a rotator having a hollow hole through which the shaft pin may pass; a magnet coupled to an inner surface of the rotator; and a fan having a fan housing coupled to an outer surface of the rotator, a hollow hole formed in a center portion of the fan housing, and radial wings. The motor may also include a stator having: a stator core having a hollow hole formed in the center through which the shaft pin may pass, at least one metal core formed to rotate the rotating body with the magnet, and at least one boss protruding downward at a lower end; and a base bracket having a hollow hole through which the shaft pin may pass, at least protrusion on an outer side coupled to the at least one boss.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: September 5, 2017
    Assignee: Hanil Patech Co., Ltd.
    Inventor: Jong Hyun O
  • Patent number: 9726181
    Abstract: An impeller includes a disk-shaped hub and a plurality of vanes provided radially on the surface of the hub. The plurality of vanes are formed in a whirling pattern about the center of rotation of the impeller, and each of the vanes has an outer peripheral surface facing the inner peripheral surface of the volute. A rotational-direction rear end portion of the outer peripheral surface of each of the vanes has a recessed step surface formed thereon. The rotational-direction rear end of the recessed step surface of each of the vanes is formed to define an edge shape with respect to a rotational-direction rear end surface of the vane.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: August 8, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yoshihiro Takahashi, Takahide Konchi
  • Patent number: 9702373
    Abstract: A single suction type centrifugal includes: a casing; and an impeller housed in the casing and provided with a plurality of blades fixed to an impeller main plate. The casing includes a suction side plate having a suction port, and a motor fixing side plate. A center portion of the impeller main plate is fixed to the motor, and a main plate opening is formed in the impeller main plate between the blades and a center portion of the impeller main plate. A blade end portion imaginary plane passes end portions of the blades on a motor fixing side plate side and is perpendicular to a rotary shaft of the motor. A constriction portion is formed where a distance between the blade end portion imaginary plane and the motor fixing side plate is narrowed between the main plate opening and the blades.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: July 11, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Akimasa Uehara, Satoshi Ousaka
  • Patent number: 9689581
    Abstract: Some embodiments of the invention include a ventilation apparatus including a housing assembly with at least one fluid inlet, and at least one fluid outlet, and an exhaust fan assembly coupled to the housing assembly within an inner region. The exhaust fan assembly can include a scroll positioned within and coupled to the main housing, and a blower wheel positioned within the scroll and mechanically coupled to the motor. The ventilation assembly can include a configurable mounting panel including a main panel and at least one tab, and at least one configurable flange coupled to the main panel and extending outwardly from the main panel. The configurable mounting panel can include at least one bending region with at least one aperture. The ventilation apparatus can also include a muffler including an aperture, an electrical box enclosure including a lid, and a duct connector assembly each coupled with the housing assembly.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: June 27, 2017
    Assignee: Broan-NuTune LLC
    Inventors: Mirko Zakula, Robert G. Penlesky, Daniel L. Karst, Kenneth J. Jonas
  • Patent number: 9638206
    Abstract: The invention relates to a centrifugal pump (1) comprising a pump housing (2) which is provided with an axial inlet (6), an outlet (5) and a rotor (7) which is attached in the pump housing (2) such that it can rotate about an axial rotation axis A. The rotor (7) is provided with a central boss (9), a shaft shield (11) fastened to the boss (9), a suction shield (12) attached so as to be axially set apart from the shaft shield (11), which suction shield (12) has an axial supply (14) aligned with the axial inlet (6) of the pump housing (2), and a plurality of rotor blades (15) which are fastened between the shields (11, 12). The radial inner ends (18) of the rotor blades (15) are connected to the suction shield (12) by a substantial perpendicular connection.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: May 2, 2017
    Assignee: IHC Holland IE B.V.
    Inventors: Cornelis Hendrik van den Berg, Hasan Hüseyin Bugdayci, Erwin Cornelis Johannes Bijvoet, Mattheus Abraham Manneke
  • Patent number: 9581046
    Abstract: In a scroll structure of a centrifugal compressor, there are provided a radius increase arc portion E in which a radius from the center of a scroll 12 to a scroll centroid P of the cross section of the scroll 12 is gradually increased in any range in a circumferential direction from the start of winding of the scroll, and a radius decrease arc portion F in which the radius is gradually decreased toward a scroll end point Z.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 28, 2017
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Toru Hoshi, Isao Tomita, Motoki Ebisu, Hiroshi Suzuki, Takashi Shiraishi
  • Patent number: 9546668
    Abstract: A blower assembly including a blower housing having a side wall with a first portion extending from the initial cutoff through an angle of at least 45° or more, the first portion having a radius which is substantially constant or which increases at a relatively small rate. The side wall additionally includes a second portion, extending from the end of the first portion to the outlet, which forms a continuous curve with the first portion and has an increasing radius which is increasing at a larger rate and has a rate of increase that is also increasing with housing angle. The shape of the side wall allows a reduction in the overall size of the blower housing for a given size of impeller.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: January 17, 2017
    Assignee: Regal Beloit America, Inc.
    Inventor: Leslie A. Lyons
  • Patent number: 9546625
    Abstract: A housing has walls that define a volute passage and a diffuser passage fluidly connected to the volute passage. The volute passage has a first subsection and a second subsection, each having cross-sectional areas defined by tabular data. A centrifugal pump has a rotor and a housing, the housing having walls defining a volute passage and a diffuser passage fluidly connected to the volute passage. The volute passage has a first subsection and a second subsection, each having cross-sectional areas defined by tabular data.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: January 17, 2017
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Adrian L. Stoicescu, Brandon T. Kovach
  • Patent number: 9447698
    Abstract: A double-walled turbocharger housing made of sheet metal includes an inner sheet metal shell which conducts hot exhaust gases and a relatively cold outer sheet metal shell which is spaced apart from the inner sheet metal shell via an air gap. The double-walled turbocharger housing is connected to a bearing flange with a circumferential collar via a common welding seam. The bearing flange is provided with a collar on an outside which faces away from the hot exhaust gas. An outer end of the inner sheet metal shell is provided with a collar with which it embraces the outer sheet metal shell. Both sheet metal shells are connected with the collar of the bearing flange via a common welding seam, wherein an air gap is present between the inner sheet metal shell and the outer sheet metal shell up to the outer end of the inner sheet metal shell.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: September 20, 2016
    Assignee: BENTELER AUTOMOBIL TECHNIK GMBH
    Inventors: Elmar Grussmann, Arthur Lesch
  • Patent number: 9441637
    Abstract: A volute shaped pump casing for a centrifugal pump includes a chamber for housing at least one impeller rotatable around an axis of rotation and a volute shaped chamber which forms a flow channel and which contains a splitter rib for dividing the flow channel formed wherein in a section perpendicular to the axis of rotation a mean camber line is positioned equidistantly between an inner and outer surface of the splitter rib, where the thickness of the splitter rib is varied along the mean camber line and for the mean camber line unwrapped to a straight line there is a maximum in the thickness, s, of the splitter rib, wherein said maximum is positioned at a distance L from the leading edge of the splitter rib, and wherein the distance L is in the range between 1.4 times the maximum thickness s and 6 times the maximum thickness s.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: September 13, 2016
    Assignee: Sulzer Management AG
    Inventors: Patrick Flückiger, Arnaldo Rodrigues
  • Patent number: 9334875
    Abstract: Provided are a low-noise, high-performance multiblade centrifugal fan that suppresses interference between rotational flows generated within extension sections that are extended in a rotation-axis direction at upper and lower end surfaces of a scroll casing, and an air conditioner equipped with the same. In a multiblade centrifugal fan having an impeller disposed in a rotatable manner about a rotation shaft within a scroll casing having a flow path whose cross section gradually increases in a rotational direction, at least one of upper and lower end surfaces of the scroll casing serves as an inclined end surface that is extended in the extending direction of the rotation shaft such that an extended height thereof gradually increases in the rotational direction from a scroll start position, and a stepped section extending in the rotational direction is provided between the inclined end surface and an inner-peripheral side surface of an extension section.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: May 10, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Seiji Sato, Tsuyoshi Eguchi, Atusi Suzuki
  • Patent number: 9309895
    Abstract: A closed impeller has a base cover, which has a base interior surface, and a second cover. A vane, which has an inlet distal end and an outlet distal end, is on the base interior surface. The vane has low and high pressure side surfaces wherein they have a low or high pressure midpoint, respectively. A hard coating is on the low and high pressure side surfaces. The hard coating has a minimum low and high pressure coating thickness at their respective midpoints. The minimum low, as well as high, pressure coating thickness ranging between about 0.085 and about 0.8 of either one of the maximum outlet coating thickness at the outlet distal end or the maximum inlet coating thickness at the inlet distal end, respectively.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: April 12, 2016
    Assignee: KENNAMETAL INC.
    Inventors: Dave Siddle, Sudhir Brahmandam, Irene Spitsberg
  • Patent number: 9200639
    Abstract: A compressor housing assembly can include a shell that includes a cylindrical wall portion including a fluid inlet opening at one end and a sloped mating surface at an opposing end and, extending radially outwardly from the cylindrical wall portion, a spiral wall portion that defines, in part, a volute; and an insert that includes a cylindrical wall portion including a fluid inlet opening at one end and a shroud surface at an opposing end and, extending radially outwardly from the cylindrical wall portion, an annular ring portion including a sloped mating surface and, extending from the shroud surface, a diffuser surface, where, in an assembled state, the sloped mating surface of the insert and the sloped mating surface of the shell form a sloped interface between the insert and the shell. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
    Type: Grant
    Filed: August 19, 2012
    Date of Patent: December 1, 2015
    Assignee: Honeywell International Inc.
    Inventors: Penny Li, Hua Chen
  • Patent number: 9145900
    Abstract: Provided is an air blower for an air conditioner. The air blower for the air conditioner includes a centrifugal fan and a fan housing. The fan housing covers the centrifugal fan, and forms a scroll-type flow path having a varying cross-sectional area and guiding air forcibly blown by the centrifugal fan to an outlet. Here, a bottom surface of the scroll-type flow path inclines and is thinnest near a region where the scroll-type flow path ends. The thickness of the bottom surface progressively increases along a straight line running from a region where the bottom surface is thinnest to an opposite outer side of the scroll-type flow path through a center of the centrifugal fan.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: September 29, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Jung Hoon Kim, Dong Soo Moon, Jung Woo Lee, Mi Jin Jung
  • Patent number: 9103351
    Abstract: A cooling pump receives fluid from a heating system and supplies cooled fluid to an engine. The cooling pump includes a body housing and a cover housing. The cover housing is attached to the body housing to define an internal pumping chamber. The internal pumping chamber is defined between an inlet passage and an outlet passage of the body housing. A chamber outlet opening is defined between the internal pumping chamber and the outlet passage such that fluid flows from the internal pumping chamber and into the outlet passage. The cover housing includes a sloped wall which extends into the outlet passage between the chamber outlet opening and a terminus. The sloped wall has a concave portion and a convex portion disposed such that the concave portion is between the chamber outlet opening and the convex portion to direct fluid through the outlet passage and into the engine.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: August 11, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Selvaganesh P, Jennifer A Graham
  • Patent number: 9097120
    Abstract: An assembly includes a cast cartridge component and a curved wall where the cast cartridge includes a base plate having an opening configured for receipt of a turbine wheel, an exhaust conduit having an inlet and an outlet, a cylindrical wall, and vanes disposed between the cylindrical wall and the base plate where adjacent vanes define throats; where the curved wall includes a proximal end and a distal end, and an upper edge and a lower edge; and where joinder of the proximal end and the outlet of the exhaust conduit, joinder of the upper edge and the cylindrical wall and joinder of the lower edge and the base plate forms a volute configured to direct exhaust received via the inlet to a turbine wheel via the throats. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: August 4, 2015
    Assignee: Honeywell International Inc.
    Inventors: Dominique Petitjean, Guillaume Dupont, Anthony Ruquart, Philippe Arnold, Manimurugan Palaniyappan, Manuel Marques, Jean-Jacques Laissus, Raphael Ceotto
  • Patent number: 9039360
    Abstract: A centrifugal fan is provided. The centrifugal fan is configured such that an impeller having a plurality of blades along a circumferential direction and disposed between a disk-shaped main plate and an annular shroud is housed in a casing configured by an upper casing and a lower casing, and that an air suctioned from a suction opening is discharged outward in a radial direction of the impeller by a centrifugal force due to a rotation of the impeller. The shroud has a curved surface formed from an outer edge portion toward a center thereof. The shroud has a plurality of protrusions which are formed on the surface of the shroud such that a gap is formed between each of the protrusion portions and the upper casing.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: May 26, 2015
    Assignee: Minebea Co., Ltd.
    Inventors: Takako Fukuda, Seiya Fujimoto, Masaki Ogushi, Yuzuru Suzuki
  • Patent number: 9033655
    Abstract: A multiblade air blower has a multiblade impeller, an orifice, an axially overlaid portion, and an airflow collision prevention device. The multiblade impeller includes a main plate and a blade. The blade is provided at the main plate to form a blade inner periphery. The orifice has an open end and an orifice inner periphery. The open end is positioned toward the main plate from a blade end face. The orifice inner periphery has an inner diameter larger than that of the blade inner periphery, and guides air to the multiblade impeller. The axially overlaid portion is a part where the orifice and the blades are overlaid. The airflow collision prevention device is provided at the blade and at an inner side of the orifice inner periphery. The multiblade air blower suppresses loss of air distribution efficiency and increased noise.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: May 19, 2015
    Assignee: PANASONIC CORPORATION
    Inventor: Seiji Shirahama
  • Publication number: 20150132120
    Abstract: In a compressor for a supercharger of an internal combustion engine comprising a shroud, an impeller, a vaneless diffuser, and a scroll, a hub-side wall of the vaneless diffuser is formed to be inclined to the opposite side to a shroud-side wall with respect to a direction perpendicular to a rotational axis of the impeller in the longitudinal cross section including the rotational axis of the impeller. With such a configuration, the amount of deposit formed on the hub-side wall of the vaneless diffuser is reduced.
    Type: Application
    Filed: July 6, 2012
    Publication date: May 14, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Keiji Yoeda
  • Patent number: 9011092
    Abstract: In a multi-blade centrifugal fan in which an impeller is provided in a scroll casing in a freely rotatable manner, the scroll casing is provided with an axially expanded portion that forms an air channel at a bottom surface thereof which is expanded in a rotation-axis direction at a radially outer side of an annular flange portion which supports the impeller; and is provided, in a region of an outlet between a tongue portion and a spiral-end portion of the scroll casing in the axially expanded portion, with a protrusion that protrudes radially outward from a radially inner side surface by a predetermined amount so as to directly face an airflow in a circumferential direction.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: April 21, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tsuyoshi Eguchi, Atsusi Suzuki, Seiji Sato, Masahiko Takahashi
  • Publication number: 20150104300
    Abstract: A turbocharger for an engine includes a compressor impeller, a turbine wheel, a turbine housing, a cover, and a flow passage switching valve. The impeller is for compression of intake air. The wheel drives the impeller. The housing includes first and second exhaust scrolls independently of each other, and a flow passage switching hole. The first and second exhaust scrolls swirl exhaust gas which is discharged from the engine and blow the swirled exhaust gas toward the wheel. The hole guides exhaust gas into the second exhaust scroll. The cover is provided separately from the housing. The valve opens or closes the hole, and includes a movable part having a rotatable shaft and a valving element. The movable part is attached to the cover. The cover is press-fitted to the housing, so that the valve is attached to the turbocharger.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 16, 2015
    Inventor: Etsugo YANAGIDA
  • Patent number: 9004067
    Abstract: An impeller includes a top shroud, a bottom shroud, and a plurality of vanes extending from the top shroud to the bottom shroud. The top and bottom shrouds are generally planar, and a lower edge of each vane tapers from an outer edge of the bottom shroud to a transverse tip edge thereof.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: April 14, 2015
    Assignee: RedMed Limited
    Inventors: Barton John Kenyon, Ian Malcolm Smith, Andrew Wilson, Nicholas Jerome Reed
  • Patent number: 9004854
    Abstract: An engine blower includes: an engine; a fan that is rotated by the engine; a volute case that houses the fan therein and includes an air intake port; and a sponge cover with which an exterior of the air intake port of the volute case is covered.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: April 14, 2015
    Assignee: Husqvarna Zenoah Co., Ltd.
    Inventor: Satoshi Nakazawa
  • Publication number: 20150086347
    Abstract: An object is to provide a turbine housing assembly in which reduction of weight, facilitation of manufacture, cost-cutting, and reduction of heat capacity are further promoted compared to a conventional turbine housing made of sheet metal. A turbine housing assembly includes a plurality of constituent members connected to one another to constitute a turbine housing into which a turbine wheel is inserted.
    Type: Application
    Filed: March 22, 2013
    Publication date: March 26, 2015
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yasuaki Jinnai, Hiroyuki Arimizu, Koen Kramer
  • Publication number: 20150086348
    Abstract: A single suction type centrifugal includes: a casing having a spiral shape; and an impeller housed in the casing and provided with a plurality of blades and an impeller main plate to which the blades are fixed. The casing includes a suction side plate having a suction port, and a motor fixing side plate to which a motor is fixed. A center portion of the impeller main plate is fixed to the motor, and a main plate opening is formed in the impeller main plate between the blades and a center portion of the impeller main plate. A plane which passes end portions of the blades on a motor fixing side plate side and is perpendicular to a rotary shaft of the motor is assumed as a blade end portion imaginary plane. A constriction portion is formed where a distance between the blade end portion imaginary plane and the motor fixing side plate is narrowed between the main plate opening and the blades.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 26, 2015
    Inventors: AKIMASA UEHARA, SATOSHI OUSAKA
  • Patent number: 8984879
    Abstract: A variable geometry turbocharger is simplified yet able to maintain pulse energy. In a first embodiment, a turbine housing is provided with a pivoting wall which pivots about a point near the entry to the turbine housing. By moving the wall about the pivot point, the effective volume of the turbine housing volute is varied, thus effectively reducing the volume of exhaust gas in the volute, allowing control of exhaust gas flowing to the turbine wheel. In the second embodiment of the invention, a rotating wedge segment within the volute is rotated from a first position to a second position, changing the effective volume of the volute and allowing control of exhaust gas flowing to the turbine wheel.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: March 24, 2015
    Assignee: BorgWarner Inc.
    Inventors: John P. Watson, Tilman Bernauer, Kurtis E. Henderson, David G. Grabowska
  • Patent number: 8979026
    Abstract: A compressor for pressurizing a flow of air within an aircraft including an inlet providing the flow of air to the compressor. An outlet provides the flow of air, after pressurization by the compressor, to a chamber of the aircraft. A diffuser assembly is disposed between the inlet and the outlet. The diffuser assembly includes one or more vanes at least partially impeding the flow of air through the diffuser assembly. A backing plate is included having a surface adjacent to the one or more vanes. The surface includes a relief feature that enables air to bypass the one or more vanes. The relief feature has an axial depth of about 0.5% to 2.5% of a width of a flow path through the diffuser assembly or of about 0.5% to 5% of a thickness of a flange of the backing plate. A method of operating a compressor is also included.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: March 17, 2015
    Assignee: Hamilton Sundstrandt Corporation
    Inventors: David A. Dorman, Harold W. Hipsky, Peter A. Wierzbowski, Eric Chrabascz, Brian Cabello
  • Patent number: 8979474
    Abstract: A water pump (30) includes an impeller chamber (32) formed in a housing (31), a swirl chamber (40) formed in the housing (31) to communicate with a coolant passage (8) and the impeller chamber (32), and an impeller (33) that is supported to be free to rotate in the impeller chamber (32) and rotates in conjunction with an engine (2) so as to take in a coolant and discharge the coolant into the coolant passage (8) via the swirl chamber (40). The swirl chamber (40) is formed to be divided into a first swirl chamber (41) that communicates with the coolant passage (8) at all times, and a second swirl chamber (42) and a third swirl chamber (43) respectively connected to the coolant passage (8) via thermostats (S1, S2) respectively having switch valves that can be opened and closed. The thermostats (S1, S2) are operated to open and close, thereby connecting and cutting off the swirl chambers (42, 43) and the coolant passage (8), in accordance with a temperature of the coolant.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: March 17, 2015
    Assignee: TBK Co., Ltd.
    Inventor: Takeshi Hoji
  • Publication number: 20150071773
    Abstract: An impeller includes a disk-shaped hub and a plurality of vanes provided radially on the surface of the hub. The plurality of vanes are formed in a whirling pattern about the center of rotation of the impeller, and each of the vanes has an outer peripheral surface facing the inner peripheral surface of the volute. A rotational-direction rear end portion of the outer peripheral surface of each of the vanes has a recessed step surface formed thereon. The rotational-direction rear end of the recessed step surface of each of the vanes is formed to define an edge shape with respect to a rotational-direction rear end surface of the vane.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 12, 2015
    Applicant: Honda Motor Co., Ltd.
    Inventors: Yoshihiro Takahashi, Takahide Konchi