Axially Directed Inlet And Tangential Outlet Patents (Class 415/206)
  • Patent number: 11326616
    Abstract: A disk-shaped fan impeller structure includes a plate body having an inner rim and an outer rim. The inner rim is connected with a hub via multiple connection members. The outer rim extends in a direction away from the hub. The connection members are annularly disposed on outer circumference of the hub at intervals to radially extend toward the inner rim of the plate body. A top face and a bottom face are defined between the inner rim and outer rim. Multiple upper boss bodies are arranged on the top face at intervals. Multiple first gaps are distributed between the upper boss bodies. By means of the boss bodies, the periodical noise problem of the conventional fan impeller can be improved.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: May 10, 2022
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Te-Chung Wang, Ming-Che Lee, Min-Sheng Cheng, Liang-Hsuan Yeh
  • Patent number: 11306733
    Abstract: A pump chamber (32a), valve chambers (33a and 33b), discharge holes (33e and 33f), and flow paths (34 and 35) are integrally provided to each other in a housing (30), so that the pressure loss of the cleaning liquid “W” can be reduced. In addition, since valve chambers of the flow paths extend to the discharge holes, the cleaning liquid flowing out of the flow paths can be discharged at a portion closer to the central of the valve chambers. As a result, the outlet portions of the flow paths and the inlet portions of the discharge holes is brought closer to each other, and the turbulent of the cleaning liquid in the valve chambers can be suppressed, thereby reducing the pressure loss.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: April 19, 2022
    Assignee: Mitsuba Corporation
    Inventors: Atsushi Otani, Satoshi Ishikura
  • Patent number: 11236762
    Abstract: A centrifugal blower has a first housing section and a second housing section separated by a width of the centrifugal blower. The centrifugal blower also has an intake port extending through the first housing section and the second housing section along the width, and an outlet port formed by the first housing section and the second housing section. A dimension of the width continuously decreases as the outlet port is approached along a length of the centrifugal blower.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: February 1, 2022
    Assignee: Johnson Controls Technology Company
    Inventors: Madhuka M. Jayarathne, Hongdan Wang, Roy R. Crawford, Robert E. Cabrera, Paul J. Lucas
  • Patent number: 11236758
    Abstract: An impeller includes a disk that has a disk shape centered on an axis, a cover that is disposed to be separated from the disk in an axial direction in which the axis extends, a plurality of blades that connect the disk and the cover to each other and are disposed at intervals in a circumferential direction around the axis, and a connection member that is disposed to be separated from the plurality of blades in the axial direction and connects the disk and the cover to each other. A plurality of the connection members are disposed at intervals in the circumferential direction at positions near an inlet of an impeller flow path with respect to front edges of the blades positioned at positions near the inlet, the impeller flow path being formed between the disk and the cover.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: February 1, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Hideki Nagao, Akihiro Nakaniwa
  • Fan
    Patent number: 11162498
    Abstract: A fan includes a frame, an impeller and a motor. The frame includes a base, a frame housing and a plurality of static blades. The frame housing includes an outlet. The static blades are disposed around the outer periphery of the base and connect between the base and the frame housing. A distance is provided between the outlet and the ends of the static blades located adjacent to the outlet, and the static blades are not protruding from the outlet. The impeller includes a hub and a plurality of rotor blades. The hub has a curved surface. The slopes of the straight lines connecting any two points on the curved surface are not equal. The rotor blades are disposed around the outer periphery of the hub. The motor is disposed on the base, and connects with and drives the impeller to rotate.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: November 2, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Shun-Chen Chang, Chao-Fu Yang
  • Patent number: 11156228
    Abstract: A centrifugal compressor includes a compressor and a scroll which is disposed around the impeller and in which a flow passage including a scroll flow passage is formed in a rotation direction of the impeller, in which the scroll includes a discharge portion connected to a winding end portion of the scroll flow passage—and a winding start portion connected to the discharge portion and the winding start portion on a fluid suction side in a direction along a rotation axis of the impeller is connected to the discharge portion at an obtuse angle.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: October 26, 2021
    Assignee: IHI Corporation
    Inventors: Takahiro Ueno, Wataru Sato
  • Patent number: 11136990
    Abstract: The impeller has a bottom disk, a top disk, and impeller blades sandwiched between the two. The top disk has an inner opening edge that defines an axial inlet opening. The impeller blades have a first radial inward section that extends radially inward beyond the opening edge. A blade contour on each impeller blade points toward the inlet side of the impeller. The blade contour first radial inward section extends from a transition portion near the opening edge under the top disk. The blade contour on the first radially inward section of the impeller blade extends radially inward yond the opening edge and forms a specified formula geometrical edge design. A second portion of the impeller blades extends radially outward from the transition portion, the transition portion and the second portion of the impeller blade are covered entirely by the top disk from the first formula impeller blade contour.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: October 5, 2021
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Denis Kraner, Thomas Heli
  • Patent number: 11125154
    Abstract: The centrifugal impeller can have a hub and a plurality of blades, each of the blades having a span extending from the hub to a tip edge, camber lines extending from an inlet edge to an outlet edge between two opposite faces, including a tip camber line extending along the tip edge and a 50% span camber line extending at 50% of the span, a thickness extending between opposite faces of each blade, the tip edge having, at a location corresponding to 5% of the tip camber line, less than 15% of the maximum thickness, each of the blades having, along the 50% span camber line, a thickness reaching at least 58% of the maximum thickness and then reducing by at least 5% of the maximum thickness within 10% of the length of the 50% span camber line.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: September 21, 2021
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Jason Nichols, Ignatius Theratil, Mohammadreza Amiralaei
  • Patent number: 11092162
    Abstract: A centrifugal blower includes: a centrifugal fan, which includes a shroud ring; and a case. The case includes a cover portion that covers a surface of the shroud ring located on one side in an axial direction. The cover portion includes a recess formed in a cover opposing surface, which is opposed to the shroud ring, and the recess is shaped in a form of a circle. The shroud ring includes at least one projection that is formed in a ring opposing surface, which is opposed to the cover portion. A gap is formed between the cover portion and the shroud ring. A shortest distance between a radially inner end part of the shroud ring and the cover portion is set to be larger than a shortest distance between a surface of the projection and a surface of the recess.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: August 17, 2021
    Assignees: DENSO CORPORATION, SOKEN, INC.
    Inventors: Fumiya Ishii, Shuzo Oda, Masanori Yasuda
  • Patent number: 11045597
    Abstract: An extracorporeal system for lung assist includes a housing which includes a blood flow inlet in fluid connection with a pressurizing stator compartment, a fiber bundle compartment in fluid connection with the pressurizing stator compartment via a flow channel within the housing, and a blood flow outlet in fluid connection with the fiber bundle compartment. An impeller is rotatably positioned within the pressurizing compartment. The system further includes a fiber bundle within the fiber bundle compartment. A plurality of hollow gas permeable fibers of the fiber bundle extend generally perpendicular to the direction of bulk flow of blood through the fiber bundle compartment from the flow channel to the blood flow outlet.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: June 29, 2021
    Assignees: University of Pittsburgh—Of the Commonwealth System of Higher Education, Carnegie Mellon University, Mississippi State University
    Inventors: Shalv Madhani, Brian Joseph Frankowski, William J. Federspiel, Gregory Burgreen, James F. Antaki
  • Patent number: 11041505
    Abstract: A rotary machine blade (31) equipped with a clearance flow suppression blade section (34), the lean angle of which has one or more inflection points, and which is formed such that when the direction from a positive-pressure surface (31a) to a negative-pressure surface (31b) is taken as the normal direction, an inflection point (P1) of the lean angle positioned farthest toward the blade end (33) changes from the negative to the positive direction in the direction away from the blade end (33).
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: June 22, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Hironori Honda, Seiichi Ibaraki, Kenichiro Iwakiri, Tadashi Kanzaka
  • Patent number: 11035233
    Abstract: A disclosed system includes an impeller for a ventilator. The impeller includes a hub or hub ring configured to rotate about an axis and a plurality of vanes attached to the hub or hub ring. Each vane of the impeller has a leading edge facing a pressure side of the ventilator along the axis, and a trailing edge facing a suction side of the ventilator along the axis. The leading edge of each vane has a corrugated shape characterized by a first wavelength and the trailing edge has a corrugated shape characterized by a second wavelength, with the first wavelength being longer than the second wavelength. The impeller may further include injection molded plastic, die-cast aluminum, stamped sheet metal, or laser cut sheet metal that is embossed. The impeller may further be assembled from separately manufactured pieces that are secured to one another using joining, welding, or by interlocking tabs.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: June 15, 2021
    Assignee: ZIEHL-ABEGG SE
    Inventors: Tobias Gauss, Daniel Seifried, Thomas Bitz, Frieder Loercher, Georg Hofmann, Sven Loenne
  • Patent number: 10995758
    Abstract: A pump for circulating water includes an upper housing 10 formed with an inlet 11 and an outlet 12 of fluid; a lower housing 20 arranged in a lower side of the upper housing 10, having a space formed therein; an inner housing 30 having an edge part interposed between the upper housing 10 and the lower housing 20, and an impeller receiving space 31 formed in a middle part; an impeller 50 received inside the upper housing 10 and in the impeller receiving space 31 to be rotatably installed; a rotor 60 installed inside an outer circumference of the impeller 50; a spring 65 installed between a lower surface of the impeller and the inner housing; and a stator 70 installed inside the lower housing 20.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: May 4, 2021
    Assignee: NEW MOTECH CO., LTD.
    Inventors: Jeong Cheol Jang, Kyoung Joo Lee, Hyun Sung Yang, Min Seok Kang
  • Patent number: 10975884
    Abstract: An inlet nozzle (1) for a radial, diagonal or axial-flow fan, comprising an inlet section (3) that is circular in cross-section, has a radius of curvature, and tapers in diameter in the direction of flow (4), characterized by the presence of a measure or a flow element on or in the curved surface (5) of the inlet section for the purpose of forcing turbulent boundary layers in the flow, which can counteract a stall in this region. A radial, diagonal or axial-flow fan comprises a corresponding inlet nozzle (1).
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: April 13, 2021
    Assignee: Ziehl-Abegg SE
    Inventors: Tobias Gauss, Daniel Seifried, Achim Kaercher, Andreas Herbert
  • Patent number: 10912885
    Abstract: The instant invention discloses a low-profile infusion set for the infusion and aspiration of fluid. The infusion set comprises an infusion tubing, an extension tube, a housing, a needle, and a needle holder. The extension tube and needle are connected to the housing, creating improved fluid pressure rates and flow rates.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: February 9, 2021
    Assignee: AngioDynamics, Inc.
    Inventors: Shannon Maguire, Anthony Hien
  • Patent number: 10895267
    Abstract: In this pump, the angle between the imaginary tangent plane to the lip and passing through the axis and an imaginary straight line, perpendicular to the axis and passing through the point furthest from the axis of intersection of the upper surface of a finger with the lateral leading surface of this finger, is between 110 and 140°.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: January 19, 2021
    Assignee: KSB SAS
    Inventors: Nicolas Petit, Stéphanie Gonzalez, Mateusz Kaminski, Christoph Jager
  • Patent number: 10876548
    Abstract: The disclosure provides a centrifugal fan structure. The centrifugal fan structure includes a top case, a body, a fan, and a muffler pipe. The top case includes an air inlet. The body includes a sidewall, a tongue part, and a bottom case. The sidewall and the tongue part are disposed on the bottom case. The sidewall includes an opening. The fan is disposed in the body, and includes a shaft and a plurality of fan blades connected to the shaft. The muffler pipe is disposed on the sidewall, and the opening of the muffler pipe is corresponding to the opening of the sidewall. The length of the muffler pipe is proportional to the wavelength of the blade passing frequency of the fan.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: December 29, 2020
    Assignees: Inventec (Pudong) Technology Corporation, INVENTEC CORPORATION
    Inventor: Kuo-Chi Ting
  • Patent number: 10871165
    Abstract: A double-ended blower includes a blower motor assembly supporting opposed first and second shaft ends. The first and second shaft ends have respective first and second impellers attached thereto and enclosed within first and second volutes, respectively. The first volute is connected to an inlet and the second volute is connected to an outlet. The blower motor assembly is supported in a chassis enclosure and a radially outer inter-stage path is between the first and second volute. The second volute is at least partially substantially concentrically nested with the radially outer inter-stage gas path.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: December 22, 2020
    Assignee: ResMed Motor Technologies Inc.
    Inventors: Barton John Kenyon, Nicholas Jerome Reed, Andrew Wilson, Ian Malcolm Smith
  • Patent number: 10851802
    Abstract: A centrifugal blood pump prevents a shaft member from oscillating due to expansion of a pump housing resulting from pressurization of the blood. The centrifugal blood pump is manufactured by assembling a bottom member 21 and a lid member 22, and compressing them in a direction in which the bottom member 21 and the lid member 22 approach each other by a deformation amount along their outer circumferential walls. The lid member and the bottom member are joined while in the compressed state in order to create a preloading force between the shaft member and bearings to resist the expansion due to pressurization of the blood during use.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: December 1, 2020
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Shinpei Furukawa
  • Patent number: 10844872
    Abstract: There is provided a blower capable of maintaining output performance and adjusting a thrust acting in an axial direction of an impeller while reducing the number of parts. A flow path is formed in an intake port provided in a central part in the axial direction of the first housing and a blowing passage connecting the intake port and the discharge port as top surface portions of a housing-side shroud connecting to the intake port and an impeller-side shroud formed in the impeller which face the blowing passage are adjacent to each other in the radial direction.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: November 24, 2020
    Assignee: SHINANO KENSHI KABUSHIKI KAISHA
    Inventors: Shin-ichiro Godo, Akishige Umematsu
  • Patent number: 10837137
    Abstract: A drain pump has a sealed cavity formed by a motor base and a pump casing. A partition plate divides the cavity into a motor cavity, and a pump impeller cavity. A side of the partition plate facing the motor cavity is provided with a bearing base. Another side facing the pump impeller cavity comprises a plane; a bearing mounted in the bearing base penetrates through the two cavities. The bearing in the pump impeller cavity slightly protrudes from the plane of the partition plate, and is tightly attached to a pump impeller in the pump impeller cavity, to form a second contact. The pump impeller and a pump impeller shaft are subjected to integral injection molding. The pump impeller shaft is tightly fixed in the bearing, penetrates through the partition plate, enters the motor cavity, and is connected with the pump shaft in the motor cavity.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: November 17, 2020
    Assignee: QINGDAO HAIER WASHING MACHINE CO., LTD.
    Inventors: Zhiqiang Zhao, Sheng Xu
  • Patent number: 10746190
    Abstract: A fan module includes a housing, a bearing, a rotating shaft, and a fan wheel. The housing includes a bottom covering plate, a top covering plate, and a side wall connected between the bottom covering plate and the top covering plate and surrounding to form a housing space. The bearing is disposed on the bottom covering plate and includes a supporting pillar. The supporting pillar extends from the bottom covering plate toward the top covering plate. The rotating shaft has a first through hole therein. The rotating shaft is rotatably sleeved onto the supporting pillar by the first through hole. The fan wheel is connected to an outer edge of the rotating shaft.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: August 18, 2020
    Assignees: Inventec (Pudong) Technology Corporation, INVENTEC CORPORATION
    Inventors: Chia-Chen Chen, Chi-Zen Peng, Chia-Ju Ho, Meng-Lung Chiang
  • Patent number: 10718345
    Abstract: An air compressor or water pump including a frame in which there are mounted a stator, a rotor interacting with the stator to form a synchronous motor, and including a shaft, at least one turbine carried by the shaft, a fluid-supply channel to the turbine, and an outlet channel for compressed fluid, the shaft of the rotor being mounted rotatably on the frame about an, axis by a first and a second bearing. The first, respectively the second, bearing includes a first, respectively a second, spherical element provided on a first, respectively a second, end of the shaft and disposed centered relative to the axis of the shaft, and a first, respectively a second, housing provided in the frame having a form of a cap disposed centered relative to the axis of the shaft and provided to support the first, respectively the second, spherical element.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: July 21, 2020
    Assignee: Belenos Clean Power Holding AG
    Inventor: Rexhep Gashi
  • Patent number: 10662966
    Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes a blower assembly having a blower housing, a motor disposed at least partially within the blower housing, and an impeller comprising a plurality of blades disposed about the impeller that is connected to the motor by a shaft. The blower assembly includes a labyrinth seal that provides a tortuous leakage airflow path between the blower housing and the impeller to substantially reduce the amount of air that escapes from the blower housing between the blower housing and the impeller to provide an increased blower efficiency as compared to traditional blower assemblies.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: May 26, 2020
    Assignee: Trane International Inc.
    Inventor: Stephen Stewart Hancock
  • Patent number: 10655636
    Abstract: A centrifugal air blower includes a lower case. The lower case includes a land part near a tongue part joining a discharge passage of a passage section and a spiral start position of a spiral passage. The land part protrudes toward an upper case. The height position of the land part is substantially the same as the height position of lower ends of blades. The land part includes a first wall which is vertically formed along an inner circumferential wall of the discharge passage, a second wall which is vertically formed on an outer circumferential side of an insertion hole and on a radially inward side of the first wall, and a ceiling covering upper ends of the first and second walls.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: May 19, 2020
    Assignee: KEIHIN CORPORATION
    Inventor: Masaatsu Iwasaki
  • Patent number: 10655634
    Abstract: A compressor wheel assembly for a forced induction device includes an impeller member and a plate member. The impeller member is formed of a polymer material, and includes a hub portion and a plurality of blades extending from an outer surface of the hub portion. The hub portion includes an outer peripheral portion formed therewith. The plate member is connected to the outer peripheral portion of the impeller member to be rotationally fixed thereto. The plate member being formed of a metal material.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 19, 2020
    Assignee: BorgWarner Inc.
    Inventors: Andrew John Taylor, Charlie Terry, Christian Ellis
  • Patent number: 10648681
    Abstract: A bellmouth of a heat source unit includes: a straight tubular portion having a cylindrical shape; an air inlet portion which is radially expanded toward the upstream side, wherein, the air inlet portion has at least one angle-reduced portion that satisfies ?0>?i>0, where, an angle formed by a line L1 and a line L2 is taken as ?0, and an angle formed by a straight line L3 and the line L2 is taken as ?i, the line L1 is a line passing through a portion of an outer peripheral end portion of the air inlet portion, the line L2 is a line passing through a connecting portion between the air inlet portion and the straight tubular portion, and the straight line L3 is a line connecting an intersection P of the line L1 and the line L2 and a portion of the outer peripheral end portion of the air inlet portion.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: May 12, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Katsuyuki Yamamoto, Seiji Nakashima, Yohei Kato, Tsubasa Tanda
  • Patent number: 10634145
    Abstract: A self-priming pump assembly comprises a series connection of a liquid ring pump functioning as a rotating displacement pump and a normally-priming centrifugal pump. The self-priming pump assembly improves the fluid mechanics conditions for the flow of fluids toward and into a return line through the inclusion of a first connection opening in the meridian plane of the centrifugal pump that possesses a bulge enclosing a sector of the longitudinal axis of the first connection opening, where the bulge is one-sided and oriented toward a rotary axis of the pump assembly, and the bulge continuously expands, directly or indirectly, the first connection opening toward the impeller plane. At its end section facing the impeller plane, a transitional surface of the bulge continuously transitions into the lateral boundary surface, or an inner peripheral wall of the ring channel adjoining the lateral boundary surface.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: April 28, 2020
    Assignee: GEA Tuchenhagen GmbH
    Inventors: Simon Anderson, Stephan Dirks, Christoph Wabnitz
  • Patent number: 10619906
    Abstract: Provided are a branching air supply device and a refrigerator with same. The branching air supply device comprises: a housing, having a first half portion and a second half portion that are symmetric with respect to a geometric symmetrical plane, the first half portion and the second half portion each being provided with at least one air inlet and multiple air outlets; and a first adjusting piece and a second adjusting piece that are symmetrically arranged with respect to the geometric symmetrical plane, the first adjusting piece and the second adjusting piece being respectively configured to completely shield, partially shield, or completely expose each air outlet of the first adjusting piece and the second adjusting piece in a controlled mode, to adjust an air-outlet area of each air outlet. The branching air supply device is symmetrically disposed with the first half portion and the second half portion in a refrigerator.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: April 14, 2020
    Assignee: QINGDAO HAIER JOINT STOCK CO., LTD
    Inventors: Kui Zhang, Bin Fei, Ming Wang, Xueli Cheng, Chunyang Li
  • Patent number: 10578122
    Abstract: A compressor comprises a housing having an axial intake and an annular outlet volute. An impeller is mounted on a shaft for rotation about a shaft axis between the axial intake and the annular outlet volute. The impeller has a plurality of blades, each blade having a front edge facing the axial intake and a tip. The annular outlet volute includes an annular diffuser passage surrounding the impeller. The annular diffuser passage has a diffuser inlet downstream of the plurality of blades and a diffuser outlet communicating with the annular outlet volute, the tips of the blades sweeping across said diffuser inlet during use. A wall of the housing which defines the annular diffuser passage and which extends over the front edges of the blades defines an annular recess extending from the diffuser inlet towards the diffuser outlet.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: March 3, 2020
    Assignee: Cummins Ltd.
    Inventor: John R. Horsley
  • Patent number: 10544789
    Abstract: A fan assembly includes an axis of rotation and a fan that includes an inlet ring and a rear plate that together define an inner fan chamber, wherein the fan is a backward curved plug fan. The fan assembly also includes an axial flux motor coupled to the rear plate such that the motor is positioned entirely outside the fan chamber to facilitate preventing interference between the motor and an airflow within the fan chamber.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: January 28, 2020
    Assignee: Regal Beloit America, Inc.
    Inventors: Nicholas Neville Lambert, Richard P. Harris, Byron Kennedy, Matthew J. Turner, Hani Chahine
  • Patent number: 10527294
    Abstract: The present invention relates to a method for controlling a pump for feeding fluid (F) into a heating system (1000). The heating system has a hot fluid tank (HFT) receiving fluid from an associated fluid reservoir line (5) with an incoming fluid mass flow rate (dmcw/dt). A pump (P) receives fluid from the line, and pumps the received fluid with a mass flow rate (dmc/dt). A heat exchanging unit (HX) transfers heat (Q) to the fluid (F) from a medium (R). The transferred heat (Q) is maximized by controlling the pump (P1) in response to this information indicative of the transferred heat (Q), the fluid mass flow rate delivered by the pump thereby having a minimum as a function of the incoming fluid mass flow rate (dmcw/dt) when maximizing the transferred heat. The invention provides significantly improved heat transfer to the fluid and power savings for the pump. The invention also relates to a heating system, e.g. a heat pump system.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: January 7, 2020
    Assignee: Grundfos Holding A/S
    Inventor: Casper Hillerup Lyhne
  • Patent number: 10514042
    Abstract: A pump features an impeller having a rotating disk with a front side and a back side. The impeller is arranged to rotate on a shaft with the front side nearest an inlet and the back side nearest a motor housing, so as to provide a main flow of liquid being pumped and a rear impeller flow of the liquid being pumped in an area between the back side of the impeller and the motor housing. The back side has a spiral-shaped vane configured to constantly sweep, and expel any debris from the area between the back side of the impeller and the motor housing. The spiral-shaped vane is formed as a curve that emanates from a central point defined by an axis of the impeller and gets progressively farther away as the curve revolves at least one complete revolution around the central point or axis.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: December 24, 2019
    Assignee: Flow Control LLC
    Inventor: Jeffrey D. Lopes
  • Patent number: 10514043
    Abstract: A centrifugal fan comprises a casing and a fan impeller. The casing comprises a first cover, a second cover, a side wall structure and a isolating structure. The side wall structure is connected between the first cover and the second cover to form an accommodating space. The side wall structure includes a first air inlet and an air outlet. The isolating structure is disposed between the first cover and the second cover to distinguish the accommodating space into a first subspace and a second subspace. The isolating structure includes a through hole. As a result, airflow is guided from a side to the first air inlet easily. Then, the air inlet volume and air outlet volume of the centrifugal fan are improved.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: December 24, 2019
    Assignee: ASUSTEK COMPUTER INC.
    Inventors: Hsin-Chen Lin, Ing-Jer Chiou
  • Patent number: 10465696
    Abstract: Disclosed herein are a centrifugal fan and a refrigerator. The centrifugal fan according to an aspect of the present disclosure has a structure in which a plurality of blades disposed along a circumferential direction are disposed in two lines in a radial direction of a hub, such that the noise of the fan is reduced and the flow rate of air is increased, and the efficiency of the fan is improved, and the centrifugal fan includes a middle guide member inducing an inflow in the center of the fan, such that the inflow to the fan is prevented from being concentrated in a lower part of the fan, and a total height of a discharge port is efficiently used. Therefore, the uniformity of a component of a discharging flow at the discharge port is improved and thus the noise of the fan is reduced.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 5, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun Joo Kim, Kwang Su Heo, Eung Ryeol Seo, Hyo Suck Kang
  • Patent number: 10458431
    Abstract: A boost pump includes a housing cover and a pump housing engaged opposite to the housing cover. Volute passages are defined between the housing cover and the pump housing. The volute passages include a circumferentially extending volute defining a plurality of cross sections defined in a housing including the pump housing and the housing cover. The plurality of surfaces are defined as a set of dimensions set out in at least one of TABLES 1 through 3.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: October 29, 2019
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Adrian L. Stoicescu, Benjamin T. Harder
  • Patent number: 10436217
    Abstract: A cooling system for optimizing fan air flow performance without compromising acoustic performance is disclosed. At least three fan feature embodiments are disclosed: (1) sloped fan blades, (2) sloped impeller hubs, and (3) inlet flow guidance features. For the first embodiment, fan blades attached to an impeller disc and having leading edges that progressively curve toward a center of the impeller disc. For the second embodiment, the impeller disc is attached to and centered on an impeller hub that has a sloped hub surface that progressively curves toward the fan blades. For the third embodiment, an inlet flow guidance feature is positioned within a region surrounding a fan's inlet promoting smooth passage of air into the fan. In some embodiments, all three fan features are combined.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: October 8, 2019
    Assignee: Apple Inc.
    Inventors: Anthony Joseph Aiello, Jesse T. Dybenko, Richard A. Herms
  • Patent number: 10415584
    Abstract: An impeller for a centrifugal fan includes a base plate, a ring-shaped shroud, a tubular inlet port connecting the circular inlet of the shroud and the base plate, and a plurality of blades annularly disposed around the tubular inlet port at regular intervals. Each of the blades includes a pressurized surface, a suction surface, a leading edge, and a trailing edge. When viewed in a direction parallel to the rotation axis of the impeller, a distance between the pressurized surface and the suction surface of each of the blades becomes increasingly larger starting from the leading edge of the pressurized surface and extending toward the trailing edge of each of the blades at a predetermined height.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: September 17, 2019
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Hirofumi Shoji
  • Patent number: 10363348
    Abstract: A centrifugal pump for pumping blood includes a housing 2 with a housing main body 20, a blood inlet port 25, and a blood outlet port 26. A rotary body 3 is rotatably accommodated inside the housing main body 20, and a support mechanism 4 supports the rotary body 3. The support mechanism 4 is provided with a rod-like shaft member 5, and a first bearing 6 and a second bearing 7 which respectively and rotatably support end portions of the shaft member 5. The first bearing 6 is provided with a protruding portion 62 which protrudes in an eccentric manner with respect to a rotation center O when viewed from an upstream side of a blood flow, so that the protruding portion shields a counter-rotating, longitudinal side of the shaft member from exposure to the main flow of blood.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: July 30, 2019
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Shotaro Tanaka, Yosuke Itamochi
  • Patent number: 10343618
    Abstract: A landscaping blower nozzle assembly includes an inlet section for allowing air into the assembly, an elbow section and a motor. A nozzle is insertable into the elbow section such that the motor moves the elbow section in a moveable motion back and forth though at least 180 degree of motion for aiding the operator in the movement and removal of leaves and other debris. A breakaway coupler prevents damage to the blower nozzle when coming into contact with a rigid surface or structure. A tensioner assembly prevents distortion of the nozzle tip when subjected to high velocity air from the blower motor.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: July 9, 2019
    Assignee: Portamaker, Inc.
    Inventors: Kristopher D. Shumaker, Jeremy C. Stoddard, Steven J. Leibrandt
  • Patent number: 10267320
    Abstract: A double-ended blower includes a blower motor assembly supporting opposed first and second shaft ends. The first and second shaft ends have respective first and second impellers attached thereto and enclosed within first and second volutes, respectively. The first volute is connected to an inlet and the second volute is connected to an outlet. The blower motor assembly is supported in a chassis enclosure and a radially outer inter-stage path is between the first and second volute. The second volute is at least partially substantially concentrically nested with the radially outer inter-stage gas path.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: April 23, 2019
    Assignee: ResMed Motor Technologies Inc.
    Inventors: Barton John Kenyon, Nicholas Jerome Reed, Andrew Wilson, Ian Malcolm Smith
  • Patent number: 10138803
    Abstract: Methods and systems are provided for a wastegate of a turbocharger including a valve plate, valve actuation mechanism, and a bifurcated wastegate passage. In one example design, the wastegate may include a valve plate having an interior with a multiplane curved surface and a first mating feature centered along the curved surface, the curved surface forming a raised edge and a side opening on opposite sides of the valve plate; and a passage bifurcated by a central wall, an end of the central wall including a second mating feature adapted to have face-sharing contact with the first mating feature. The first mating feature may be either a rib or recessed slot formed on the valve plate, and the second mating feature may be one end of the central wall.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: November 27, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Keith D. Miazgowicz, Gregory Patrick McConville
  • Patent number: 10125737
    Abstract: This Francis-type runner for a turbine includes a crown, a band and blades the number of which is not a prime number. These blades are made as one piece and extend between the crown and the band, and between a leading edge and a trailing edge each trailing edge has its concave face facing upstream over its entire length. In addition, first blades are uniformly distributed about a central axis of the runner in a number equal to a divisor of the total number of blades. Each of these first blades has a point of attachment of its trailing edge to the crown that is lowered by comparison with the point of attachment of the trailing edge to the crown of second blades, which are likewise part of the runner.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: November 13, 2018
    Assignee: GE RENEWABLE TECHNOLOGIES
    Inventor: Thomas De Colombel
  • Patent number: 10125671
    Abstract: Methods and systems are provided for a wastegate of a turbocharger including a valve plate, valve actuation mechanism, and a wastegate passage. In one example design, the wastegate may include a valve plate having flow formations such as a multiplane curved surface on an interior of the valve plate and a side opening; a passage including a constricted section positioned upstream of the valve plate, the valve plate positioned at an end of the passage. In this way, the flow formations on the wastegate valve may act in conjunction with the constricted section in the passage to guide exhaust flow to an exhaust catalyst.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: November 13, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Gilbran D. Alvarez, Keith D. Miazgowicz
  • Patent number: 10107297
    Abstract: Various methods and systems are provided for a variable geometry ported shroud for a turbocharger. In one example, a compressor system includes a compressor housing defining an air inlet, a shroud, and a bypass passage, a compressor wheel housed in the compressor housing and surrounded by the shroud, only a single port passing through the shroud and fluidically coupled to the bypass passage, and a ring configured to move axially to adjust a restriction of the port.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: October 23, 2018
    Assignee: General Electric Company
    Inventors: Alok Kumar, Raghav Shrikant Kulkarni
  • Patent number: 10072523
    Abstract: An object is to provide a sheet-metal turbine housing reinforced by a readily-manufacturable structure, the sheet-metal turbine housing also having a small thickness and improved containment performance. A sheet-metal turbine housing includes: a scroll part forming an exhaust gas channel of a scroll shape in a turbocharger for driving a turbine with exhaust gas of an engine, the scroll part comprising sheet metal; and at least one rib portion of a protrusion shape formed on an outer wall surface of the scroll part at a radially outer side of an inlet edge of a turbine blade along a circumferential direction of the scroll part, the at least one rib portion protruding either outward or inward, or both, and including a bend and bend-back structure formed on the sheet metal forming the scroll part.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: September 11, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Toyotaka Yoshida, Takao Yokoyama, Isao Tomita, Daigo Watanabe, Yasuaki Jinnai, Hirotaka Higashimori
  • Patent number: 10054127
    Abstract: A ventilation assembly having a main housing that can be pre-installed in a wall or ceiling aperture. A fan assembly can be inserted through the aperture and releasably mounted within the main housing. The fan assembly can be removed from the main housing and replaced without removing the main housing from the wall or ceiling. An accessory component can be releasably mounted to the fan assembly either through the aperture when the fan assembly is mounted or prior to installation of the fan assembly.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 21, 2018
    Assignee: Broan-NuTone LLC
    Inventors: Daniel L. Karst, Benjamin Thorpe Puffer, Brent Elliott Coffey
  • Fan
    Patent number: 10012236
    Abstract: A centrifugal fan is described. The fan uses a blade that is tapered across the span of the blade. The taper can be larger towards the end opposite of the inlet or larger at the inlet. The blade may be backwardly inclined and/or curved. The fan may also include a turning vane.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: July 3, 2018
    Assignee: Regal Beloit America, Inc.
    Inventors: Rachele Barbara Cocks, Joshua James Westhoff, Zachary Joseph Stauffer, Lisa Marie Warriner, Ludovic Andre Chretien, Michael Allen Marks
  • Patent number: 9995310
    Abstract: A rotary pump includes a rotor having delivery elements which deliver at least a portion of a fluid in an axial direction of the rotor. Two delivery elements or groups of delivery elements are provided on the rotor for delivering the fluid, and deliver the fluid to be delivered in mutually opposing axial directions of the rotor, so that the axial thrust components substantially compensate each other. The fluid flows flowing counter to each other jointly give way in the radial direction of the rotor and can be jointly discharged through the volute casing and utilized.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: June 12, 2018
    Assignee: BERLIN HEART GMBH
    Inventor: Kurt Graichen
  • Patent number: 9989066
    Abstract: The disclosure relates to a blower assembly having a blower housing, an impeller adapted for rotation about an axis A-A disposed in blower housing, and an intake plenum cooperating with the interior first surface of the blower housing to define an air entrance passage for receiving an incoming air flow. The intake plenum includes means to split the incoming air flow into a plurality of air streams and direct the air streams to predetermined portions of the impeller susceptible to stall conditions as the impeller rotates about the axis A-A. The means to split the incoming air may include a splitter plate disposed in the air entrance passage or at least one port defined in a portion of the air intake plenum adjacent the impeller.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: June 5, 2018
    Assignee: MAHLE International GmbH
    Inventors: Debashis Ghosh, Richard S. Baranowski, Shamsuddin Noorani