Axially Directed Inlet And Tangential Outlet Patents (Class 415/206)
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Patent number: 11477910Abstract: A centrifugal fan including an impeller housing and an impeller. The impeller housing has an accommodation space, an air inlet and an air outlet. The air inlet and the air outlet are connected to the accommodation space. The impeller is located in the accommodation space. The impeller includes a hub, a plurality of blades, and at least one heat conductive annular portion. The hub is rotatably disposed in the impeller housing. The plurality of blades are connected to an outer circumferential surface of the hub. The at least one heat conductive annular portion is connected to the plurality of blades.Type: GrantFiled: November 25, 2019Date of Patent: October 18, 2022Assignees: INVENTEC (PUDONG) TECHNOLOGY CORPORATION, INVENTEC CORPORATIONInventors: Shin-Hsin Hsien, Chih-Kai Yang
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Patent number: 11460044Abstract: A radial fan half-spiral housing has a pressure chamber extending in the circumferential direction about an axial intake opening (5) to a radial blow-out opening (31). The pressure chamber, as viewed in the circumferential direction, is subdivided into at least one beginning portion (7), one central portion (8), and one blow-out portion. The intake opening (5) determines a central axis of rotation for a fan wheel. An averaged half-spiral housing radius, as viewed about the axis of rotation (11), varies in the beginning portion (7), the center portion (8), and the blow-out portion (9). It reaches a maximum in the blow-out portion (9). The center portion (8) of the half-spiral housing radius is reduced in a region determining a maximum height H(?,z) of the half-spiral housing (1) compared to a logarithmic spiral radius (rlog).Type: GrantFiled: February 26, 2020Date of Patent: October 4, 2022Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Josef Rathgeb, Oliver Haaf
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Patent number: 11421707Abstract: A blower housing comprises first and second blower housing pieces for surrounding a blower fan. The first blower housing piece comprises a blower discharge section comprising an inner tubular portion, an outer tubular portion, and a drain hole. The inner tubular portion defines a blower discharge passage. The inner and outer tubular portions define an exhaust pipe cavity adapted to receive an end margin of an exhaust pipe. The tubular portions are adapted to enable condensate water that forms on the inner surface of the exhaust pipe to flow into the exhaust pipe cavity. The drain hole extends through the outer tubular portion. The drain hole is configured to enable condensate water flowing into the exhaust pipe cavity to drain from the blower housing. The first blower housing piece is a molded one-piece member.Type: GrantFiled: May 10, 2021Date of Patent: August 23, 2022Assignee: Regal Beloit America, Inc.Inventor: Leslie A. Lyons
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Patent number: 11421706Abstract: A centrifugal blower includes: a centrifugal fan having plural blades arranged around a fan axis and a separation plate to blow out air in a radial direction after being sucked from one side in an axial direction; a fan casing housing the centrifugal fan; a partition plate that defines a first air passage and a second air passage arranged on the other side of the first air passage in the axial direction; and a separation cylinder arranged inside the plural blades in the radial direction. The separation cylinder expands in the radial direction as extending toward the other side in the axial direction, and is shaped to extend outward in the radial direction obliquely to the axial direction at the other end position of the separation cylinder positioned at the other end in the axial direction.Type: GrantFiled: December 21, 2020Date of Patent: August 23, 2022Assignee: DENSO CORPORATIONInventors: Yuya Suzuki, Sho Kosaka, Shuzo Oda, Shouichi Imahigashi
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Patent number: 11396886Abstract: Various pumps capable of preventing distortion are disclosed. A casing of the pump comprises a metal member configured to have at least two sub metal members and a body. Here, the sub metal members are included in the body, and the body is formed of plastic.Type: GrantFiled: January 21, 2020Date of Patent: July 26, 2022Inventor: Sang Seon Lee
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Patent number: 11384773Abstract: A fan assembly includes a radial blower unit configured to exhaust air radially from an inlet axis of the radial blower unit. The fan assembly also includes baffles each partially surrounding the radial blower unit. The baffles are rotatable between an open position and a closed position around respective pivot axes, and the baffles have respective centers of mass aligned with the respective pivot axes.Type: GrantFiled: January 14, 2020Date of Patent: July 12, 2022Assignee: Seagate Technology LLCInventor: Joseph P. Manes
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Patent number: 11375647Abstract: An electronic device includes a fan assembly that draws air (including heated air) away from components and forces the air out of the electronic device. The fan assembly includes a guide vane located in the fan housing. Subsequent to air entering the fan assembly via the fan inlets, the guide vane is designed to direct the air to a fan outlet. Further, the guide vane is designed and positioned in the fan assembly to limit or prevent flow separation that may cause the heated air to recirculate and may also cause increased turbulence leading to elevated acoustic noise. Furthermore, the guide vane may include a tapered region to allow the heated air to readily flow over the guide vane to limit or prevent a vortex from occurring within the fan assembly. Using the guide vane, the fan assembly drives more air at the same fan speed and lowers noise generation.Type: GrantFiled: February 14, 2020Date of Patent: June 28, 2022Assignee: Apple Inc.Inventors: Arash Naghib Lahouti, Jesse T. Dybenko, Anthony Joseph Aiello
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Patent number: 11371532Abstract: An inlet collector for a centrifugal fan and a centrifugal fan are provided. By arranging a tragus-shaped section in a guiding section, reverse flow caused by intersection of inlet leakage flow at a volute tongue side and inlet airflow is blocked by the tragus-shaped structure in movement process, and the leakage flow no longer collide with the inlet airflow. An inner curved surface of the tragus-shaped section controls backflow to change smoothly along an inner wall surface of the tragus-shaped section and re-enter a volute for circulation. A tragus profile is adopted to guide the airflow to change more smoothly in the velocity direction near the wall of the guiding section, so as to effectively reduce the impact of the inlet airflow on the guiding section. By using the inlet collector, energy loss of airflow is reduced, vortex formation is suppressed, and aerodynamic performance and fan noise are improved.Type: GrantFiled: January 18, 2022Date of Patent: June 28, 2022Assignee: XI'AN JIAOTONG UNIVERSITYInventors: Xiaomin Liu, Chenye Tian, Jiahao Wang, Guang Xi
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Patent number: 11353041Abstract: A fan blade includes an arc-shaped body and a connecting portion. The arc-shaped body has a main portion and an end portion connected to the main portion, wherein a width of the end portion is gradually decreased in a direction away from the main portion. The connecting portion is connected to the main portion, and the end portion and the connecting portion are respectively located at two opposite sides of the main portion. A fan structure is also provided.Type: GrantFiled: December 4, 2019Date of Patent: June 7, 2022Assignee: Acer IncorporatedInventors: Yu-Ming Lin, Wen-Neng Liao, Cheng-Wen Hsieh, Jau-Han Ke, Shun-Ta Yu
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Patent number: 11339804Abstract: A pump comprising a volute housing, a rotatable shaft, and an impeller. The volute housing comprises a volute cavity side wall, an upper cylindrical wall, and an upper wall. The upper cylindrical wall extends upwardly from an upper perimeter edge and includes an upper recessed notch formed therein. The upper wall extends radially inwardly from the upper cylindrical wall. The rotatable impeller is operatively coupled to the rotatable shaft and comprises a top cylindrical wall and a top flange. The top cylindrical wall extends upwardly from a top perimeter edge of the top flange and includes a top recessed notch formed therein. The top cylindrical wall is separated from the upper cylindrical wall of the volute housing by an upper annular gap. The top recessed notch of the rotatable impeller and the upper recessed notch of the volute housing may be slot-shaped or wedge-shaped.Type: GrantFiled: August 1, 2018Date of Patent: May 24, 2022Assignee: Liberty Pumps, Inc.Inventors: Donald M. Pohler, David M. Williams, Brad Sawyer
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Patent number: 11326616Abstract: 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: GrantFiled: December 27, 2019Date of Patent: May 10, 2022Assignee: Asia Vital Components Co., Ltd.Inventors: Te-Chung Wang, Ming-Che Lee, Min-Sheng Cheng, Liang-Hsuan Yeh
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Patent number: 11306733Abstract: 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: GrantFiled: May 8, 2017Date of Patent: April 19, 2022Assignee: Mitsuba CorporationInventors: Atsushi Otani, Satoshi Ishikura
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Patent number: 11236758Abstract: 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: GrantFiled: December 17, 2020Date of Patent: February 1, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Hideki Nagao, Akihiro Nakaniwa
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Patent number: 11236762Abstract: 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: GrantFiled: April 29, 2019Date of Patent: February 1, 2022Assignee: Johnson Controls Technology CompanyInventors: Madhuka M. Jayarathne, Hongdan Wang, Roy R. Crawford, Robert E. Cabrera, Paul J. Lucas
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Patent number: 11162498Abstract: 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: GrantFiled: June 10, 2019Date of Patent: November 2, 2021Assignee: DELTA ELECTRONICS, INC.Inventors: Shun-Chen Chang, Chao-Fu Yang
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Patent number: 11156228Abstract: 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: GrantFiled: June 21, 2017Date of Patent: October 26, 2021Assignee: IHI CorporationInventors: Takahiro Ueno, Wataru Sato
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Patent number: 11136990Abstract: 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: GrantFiled: November 16, 2016Date of Patent: October 5, 2021Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Denis Kraner, Thomas Heli
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Patent number: 11125154Abstract: 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: GrantFiled: November 5, 2019Date of Patent: September 21, 2021Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Jason Nichols, Ignatius Theratil, Mohammadreza Amiralaei
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Patent number: 11092162Abstract: 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: GrantFiled: February 9, 2017Date of Patent: August 17, 2021Assignees: DENSO CORPORATION, SOKEN, INC.Inventors: Fumiya Ishii, Shuzo Oda, Masanori Yasuda
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Patent number: 11045597Abstract: 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: GrantFiled: June 23, 2016Date of Patent: June 29, 2021Assignees: University of Pittsburgh—Of the Commonwealth System of Higher Education, Carnegie Mellon University, Mississippi State UniversityInventors: Shalv Madhani, Brian Joseph Frankowski, William J. Federspiel, Gregory Burgreen, James F. Antaki
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Patent number: 11041505Abstract: 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: GrantFiled: March 31, 2016Date of Patent: June 22, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Hironori Honda, Seiichi Ibaraki, Kenichiro Iwakiri, Tadashi Kanzaka
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Patent number: 11035233Abstract: 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: GrantFiled: June 18, 2018Date of Patent: June 15, 2021Assignee: ZIEHL-ABEGG SEInventors: Tobias Gauss, Daniel Seifried, Thomas Bitz, Frieder Loercher, Georg Hofmann, Sven Loenne
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Patent number: 10995758Abstract: 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: GrantFiled: September 18, 2017Date of Patent: May 4, 2021Assignee: NEW MOTECH CO., LTD.Inventors: Jeong Cheol Jang, Kyoung Joo Lee, Hyun Sung Yang, Min Seok Kang
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Patent number: 10975884Abstract: 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: GrantFiled: April 25, 2016Date of Patent: April 13, 2021Assignee: Ziehl-Abegg SEInventors: Tobias Gauss, Daniel Seifried, Achim Kaercher, Andreas Herbert
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Patent number: 10912885Abstract: 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: GrantFiled: August 2, 2018Date of Patent: February 9, 2021Assignee: AngioDynamics, Inc.Inventors: Shannon Maguire, Anthony Hien
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Patent number: 10895267Abstract: 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: GrantFiled: February 14, 2019Date of Patent: January 19, 2021Assignee: KSB SASInventors: Nicolas Petit, Stéphanie Gonzalez, Mateusz Kaminski, Christoph Jager
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Patent number: 10876548Abstract: 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: GrantFiled: March 31, 2017Date of Patent: December 29, 2020Assignees: Inventec (Pudong) Technology Corporation, INVENTEC CORPORATIONInventor: Kuo-Chi Ting
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Patent number: 10871165Abstract: 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: GrantFiled: April 8, 2019Date of Patent: December 22, 2020Assignee: ResMed Motor Technologies Inc.Inventors: Barton John Kenyon, Nicholas Jerome Reed, Andrew Wilson, Ian Malcolm Smith
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Patent number: 10851802Abstract: 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: GrantFiled: February 2, 2017Date of Patent: December 1, 2020Assignee: TERUMO KABUSHIKI KAISHAInventor: Shinpei Furukawa
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Patent number: 10844872Abstract: 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: GrantFiled: October 31, 2018Date of Patent: November 24, 2020Assignee: SHINANO KENSHI KABUSHIKI KAISHAInventors: Shin-ichiro Godo, Akishige Umematsu
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Patent number: 10837137Abstract: 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: GrantFiled: July 17, 2017Date of Patent: November 17, 2020Assignee: QINGDAO HAIER WASHING MACHINE CO., LTD.Inventors: Zhiqiang Zhao, Sheng Xu
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Patent number: 10746190Abstract: 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: GrantFiled: June 26, 2018Date of Patent: August 18, 2020Assignees: Inventec (Pudong) Technology Corporation, INVENTEC CORPORATIONInventors: Chia-Chen Chen, Chi-Zen Peng, Chia-Ju Ho, Meng-Lung Chiang
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Patent number: 10718345Abstract: 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: GrantFiled: March 17, 2016Date of Patent: July 21, 2020Assignee: Belenos Clean Power Holding AGInventor: Rexhep Gashi
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Patent number: 10662966Abstract: 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: GrantFiled: December 2, 2016Date of Patent: May 26, 2020Assignee: Trane International Inc.Inventor: Stephen Stewart Hancock
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Patent number: 10655636Abstract: 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: GrantFiled: March 28, 2018Date of Patent: May 19, 2020Assignee: KEIHIN CORPORATIONInventor: Masaatsu Iwasaki
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Patent number: 10655634Abstract: 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: GrantFiled: June 30, 2017Date of Patent: May 19, 2020Assignee: BorgWarner Inc.Inventors: Andrew John Taylor, Charlie Terry, Christian Ellis
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Patent number: 10648681Abstract: 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: GrantFiled: July 19, 2016Date of Patent: May 12, 2020Assignee: Mitsubishi Electric CorporationInventors: Katsuyuki Yamamoto, Seiji Nakashima, Yohei Kato, Tsubasa Tanda
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Patent number: 10634145Abstract: 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: GrantFiled: June 3, 2016Date of Patent: April 28, 2020Assignee: GEA Tuchenhagen GmbHInventors: Simon Anderson, Stephan Dirks, Christoph Wabnitz
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Patent number: 10619906Abstract: 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: GrantFiled: June 8, 2016Date of Patent: April 14, 2020Assignee: QINGDAO HAIER JOINT STOCK CO., LTDInventors: Kui Zhang, Bin Fei, Ming Wang, Xueli Cheng, Chunyang Li
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Patent number: 10578122Abstract: 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: GrantFiled: June 9, 2016Date of Patent: March 3, 2020Assignee: Cummins Ltd.Inventor: John R. Horsley
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Patent number: 10544789Abstract: 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: GrantFiled: April 18, 2014Date of Patent: January 28, 2020Assignee: Regal Beloit America, Inc.Inventors: Nicholas Neville Lambert, Richard P. Harris, Byron Kennedy, Matthew J. Turner, Hani Chahine
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Patent number: 10527294Abstract: 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: GrantFiled: October 14, 2013Date of Patent: January 7, 2020Assignee: Grundfos Holding A/SInventor: Casper Hillerup Lyhne
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Patent number: 10514043Abstract: 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: GrantFiled: January 10, 2018Date of Patent: December 24, 2019Assignee: ASUSTEK COMPUTER INC.Inventors: Hsin-Chen Lin, Ing-Jer Chiou
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Patent number: 10514042Abstract: 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: GrantFiled: June 23, 2014Date of Patent: December 24, 2019Assignee: Flow Control LLCInventor: Jeffrey D. Lopes
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Patent number: 10465696Abstract: 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: GrantFiled: March 24, 2016Date of Patent: November 5, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun Joo Kim, Kwang Su Heo, Eung Ryeol Seo, Hyo Suck Kang
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Patent number: 10458431Abstract: 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: GrantFiled: April 10, 2017Date of Patent: October 29, 2019Assignee: Hamilton Sundstrand CorporationInventors: Adrian L. Stoicescu, Benjamin T. Harder
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Patent number: 10436217Abstract: 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: GrantFiled: December 23, 2014Date of Patent: October 8, 2019Assignee: Apple Inc.Inventors: Anthony Joseph Aiello, Jesse T. Dybenko, Richard A. Herms
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Patent number: 10415584Abstract: 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: GrantFiled: October 20, 2017Date of Patent: September 17, 2019Assignee: MINEBEA MITSUMI INC.Inventor: Hirofumi Shoji
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Patent number: 10363348Abstract: 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: GrantFiled: February 6, 2017Date of Patent: July 30, 2019Assignee: TERUMO KABUSHIKI KAISHAInventors: Shotaro Tanaka, Yosuke Itamochi
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Patent number: 10343618Abstract: 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: GrantFiled: November 2, 2016Date of Patent: July 9, 2019Assignee: Portamaker, Inc.Inventors: Kristopher D. Shumaker, Jeremy C. Stoddard, Steven J. Leibrandt