With Main Line Downstream Control Patents (Class 417/185)
  • Patent number: 10920794
    Abstract: An aspirator may include an aspirator body comprising an outer wall and an inner wall, the inner wall defining a body channel. The aspirator may include an aspirator body including an outer wall and an inner wall, the inner wall defining a body channel. The aspirator body may include a plenum disposed between the outer wall and the inner wall. The aspirator body may include a plurality of apertures disposed between the outer wall and the inner wall and defined by a side wall and the plenum. The aspirator may include an aspirator barrel comprising a barrel outer wall and a barrel inner wall, the barrel inner wall defining an air channel. The air channel may be in fluid communication with the plenum.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: February 16, 2021
    Assignee: Goodrich Corporation
    Inventors: Skandan Berikai Kuppan, Satya Swaroop Panda
  • Patent number: 9987757
    Abstract: The present invention is directed toward a method for operating a vacuum generator using pressure fluid to generate the vacuum. The vacuum generator has a pressure port for pressure fluid supply, and a suction point. During a work cycle, the pressure fluid supply is activated at least once and then deactivated again at least once. An active period is measured during which the pressure fluid supply is activated during the work cycle.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: June 5, 2018
    Assignee: J. Schmalz GmbH
    Inventors: Thomas Holecek, Thomas Eisele, Harald Kuolt, Christian Frey
  • Patent number: 9512858
    Abstract: An ejector includes (i) a body part including a depressurizing space in which a refrigerant flowing out of a swirling space is depressurized, a suction passage that draws a refrigerant from an external, and a pressurizing space in which a jet refrigerant jetted from the depressurizing space and a suction refrigerant drawn from the suction passage are mixed with each other to be pressurized, (ii) a conical passage formation member which is arranged inside the body part, and (iii) a swirling promotion part. A nozzle passage is provided in the depressurizing space on an outer peripheral surface of the passage formation member, and a diffuser passage is provided in the pressurizing space on the outer peripheral surface of the passage formation member. The swirling promotion part includes a flow regulation plate that promotes a swirling flow of the refrigerant flowing in the diffuser passage.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: December 6, 2016
    Assignee: DENSO CORPORATION
    Inventors: Daisuke Nakajima, Haruyuki Nishijima, Etsuhisa Yamada, Hideya Matsui, Kenta Kayano, Yoshiyuki Yokoyama, Tatsuhiro Suzuki
  • Patent number: 9470245
    Abstract: A device is provided for generating a vacuum for a vacuum cementing device, the device including a channel and a connector for a gas cartridge. The connector has an opener for opening the gas cartridge, and connects the gas cartridge to the channel in a pressure-tight manner, such that gas from the opened gas cartridge flows along the channel to the surroundings of the device. The channel includes at least one T-piece, provided as Venturi nozzle, having a vacuum connector for the vacuum cementing device, such that gas from the opened gas cartridge flowing through the channel generates a negative pressure at the vacuum connector. A method is also provided including steps of opening a gas cartridge, flowing gas from the gas cartridge through a Venturi nozzle, whereby by a negative pressure is generated, and applying the negative pressure to a vacuum cementing system.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: October 18, 2016
    Assignee: Heraeus Medical GmbH
    Inventors: Edgar Wüst, Sebastian Vogt
  • Patent number: 8360741
    Abstract: A manual/pneumatic pump structure includes: a barrel member having a barrel body defining a fuel collection space; a cover body disposed on the barrel body for sealing the fuel collection space; a pneumatic gas-sucking member having a main body disposed on the cover body and a Venturi tube section positioned in the main body, an inlet passage being formed in the main body in communication with an inlet of the Venturi tube section, an outlet passage being formed in the main body with a first end in communication with an outlet of the Venturi tube section, a second end of the outlet passage being permissible to communicate with the atmosphere; and an isolation section for isolating internal passage of the pneumatic gas-sucking member from the atmosphere. The isolation section has a movement space within which a stopper body is movable between a blocking position and an unblocking position.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: January 29, 2013
    Inventor: Chia-Chiung Chuang
  • Patent number: 8142169
    Abstract: An ejector for a turbine engine is described herein. The ejector may include a variable geometry motive nozzle and a variable geometry mixing tube positioned downstream of the variable geometry motive nozzle.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: March 27, 2012
    Assignee: General Electric Company
    Inventors: Kenneth Neil Whaling, Dean Matthew Erickson, Hua Zhang, David Wesley Ball, Christina Renee Pompey
  • Patent number: 8083495
    Abstract: An ejector comprising a motive inlet, a motive nozzle separably secured to the motive inlet, a suction chamber about the motive nozzle, a suction fluid inlet to the suction chamber, a mixing tube in fluid communication with the suction chamber and the motive nozzle, a diffuser in fluid communication with the mixing tube and distal the suction chamber and the motive nozzle, and an outlet from the diffuser is provided. A nozzle comprising at least two concentric arc nozzle portions is also provided. An ejector comprising a mixing tube including a flexible layer adapted to compress or stretch, thereby allowing a mixing tube diameter to change is further provided.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: December 27, 2011
    Assignee: General Electric Company
    Inventors: Kenneth Neil Whaling, Dean Matthew Erickson, Hua Zhang, David Wesley Ball, Jr., James L. Davis, Michael Savale, Douglas S. Byrd
  • Patent number: 7891954
    Abstract: A method for conveying material by applying a pressure difference in a conveying conduit (4), in which method the material is fed into the conveying conduit (4) and in the conveying conduit further into a separating device (5), where the material being conveyed is separated from conveying air, in which method a negative pressure is created in the conveying conduit (4) by means of an ejector apparatus (6), whose suction side is connected to the separating device (5), said ejector apparatus being operated using an operating medium consisting of a liquid mist, especially an aqueous liquid mist, said medium being sprayed through at least one spraying nozzle (122) into an ejector tube (128) directed into a separating element (38). In the method, the generation of the negative pressure to be produced is intensified according to need by limiting the flow of gases, such as air, into the ejector tube (128) from the direction opposite to the spraying direction of its operating medium, i.e.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: February 22, 2011
    Assignee: Maricap Oy
    Inventor: Goran Sundholm
  • Publication number: 20080273992
    Abstract: A variable nozzle area jet pump is provided having a nozzle-sealing member resiliently urged to form a sealing closure. The sealing member is part of a normally non-passing pressure control valve that recirculates excess fluid back to the inlet of a positive displacement fluid pump. The fluid is recirculated with elevated pressure after a threshold fluid pressure is exceeded. The disclosed system provides for energy conservation and pump cavitation speed increase. The system may be integrated with an engine balance shaft module so as to provide low cost robustness to low speed gear noise emissions by application of the oil pump's drive torque to at lease one gearset.
    Type: Application
    Filed: May 1, 2008
    Publication date: November 6, 2008
    Applicant: METALDYNE COMPANY LLC.
    Inventor: David L. Killion
  • Patent number: 6955526
    Abstract: The vacuum generator is capable of quickly and securely holding and releasing a work piece and capable of reducing amount of consuming compressed air. In the vacuum generator, a first nozzle and a second nozzle jet compressed air toward a diffuser nozzle. The second nozzle has a diameter greater than that of the first nozzle. Switching means switches a state of the vacuum generator between a first state, in which a small amount of air sucked from the vacuum port, and a second state, in which a large amount of air is sucked from the vacuum port. The first nozzle, the second nozzle and the diffuser nozzle are serially arranged in that order.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: October 18, 2005
    Assignee: Nihon Pisco Co., Ltd.
    Inventors: Kiyoyasu Yamazaki, Toshimasa Kitahara, Suminori Masuzawa, Masataka Funahashi
  • Patent number: 6910343
    Abstract: In an ejector cycle having an ejector, a decompression amount of refrigerant between a gas-liquid separator and an evaporator is adjusted by a differential pressure control valve, so that a pressure increasing amount in a pressure increasing portion of the ejector is controlled to be equal to or lower than a predetermined amount. Therefore, a suction pressure of refrigerant to be sucked to the compressor can be restricted from being excessively increased in accordance with the increase of the pressure increasing amount in the ejector, and it can prevent heat radiating capacity of a radiator from being decreased. Thus, a sufficient cooling capacity can be always obtained in the ejector cycle.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: June 28, 2005
    Assignees: Nippon Soken, Inc., DENSO Corporation
    Inventors: Yukikatsu Ozaki, Hirotsugu Takeuchi
  • Patent number: 6537036
    Abstract: A flow amplifying pump apparatus includes a body member that defines a flow passageway and a compressed air inlet. The body member includes a main segment and an insert segment which extends into a container and rotates relative to the main segment. A cover member which lies releasably secured to the body member supports a plug assembly. The plug assembly includes a plunger that defines a groove for cooperating with a protuberance in the cover member to guide the plunger along a predetermined, substantially linear path.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: March 25, 2003
    Assignee: Illinois Tool Works
    Inventors: Steven Broerman, Aaron V. Monje
  • Patent number: 5240384
    Abstract: An ejector for use in a refrigeration system has a mixing tube or diffuser which is partitioned into multiple flow passages. Selectively directing a continuously flowing primary high velocity fluid jet stream, which stream entrains a secondary fluid, cyclically into each of the multiple flow passages creates an effective pulsing of the primary high velocity fluid jet stream with respect to each flow passage. Pulsing the primary high velocity fluid jet stream in this manner enhances the mixing and compression of the primary high velocity fluid jet stream and the secondary fluid in the diffuser.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: August 31, 1993
    Assignee: Gas Research Institute
    Inventor: John J. Tuzson
  • Patent number: 4781537
    Abstract: A hydrokinetic amplifier 10 having a primary liquid input formed into a primary liquid jet surrounded by a motivating vapor that transfers vapor momentum to the primary liquid jet and accelerates the primary liquid jet through a minimum cross-sectional area 20 upstream of a diffuser is provided with a secondary inlet that admits a secondary fluid to merge with the primary liquid jet in a diffuser 16 beyond the minimum cross-sectional area. Without varying the primary inflows of liquid and vapor, the secondary flow varies inversely with the fluid flow resistance of the output load; and this can be used to vary the volume, pressure, and temperature of the output. The product of the pressure and volume of the combined flows can exceed the product of the pressure and volume of the primary flow, and change in the load resistance can be used to turn the secondary flow on and off for adding a material to the primary flow.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: November 1, 1988
    Assignee: Helios Research Corp.
    Inventors: Carl D. Nicodemus, Blake T. Nicodemus
  • Patent number: 4762467
    Abstract: In a jet pump, the suction pressure (Po) generated may be kept constant within predetermined limits and times by varying the pressure ratio f(p) providing a prescribed value for the pressure ratio f(p) is determined by computer-aided iterative changing of an existing value of the pressure ratio f(p) using an algorithm and a measured value for the pressure (Pe) of the delivery fluid.
    Type: Grant
    Filed: December 19, 1986
    Date of Patent: August 9, 1988
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Hans Ackermann, Ralf Koecher, Udo Steinberner, Otto Michel
  • Patent number: 4669505
    Abstract: A diverter valve for use in a pneumatic conveying system includes a valve plate and a seal plate which have juxtaposed surfaces and are supported for relative movement therebetween so as to enable alignment of an input convey line port in the valve plate between alternate discharge convey line ports in the seal plate. Annular seals are supported in seal grooves circumferentially of the ports in the seal plate and are adapted for fluid pressure biasing into sealing engagement with the opposed valve plate by means of a fluid pressure control circuit. The seals are adapted to be subject to vacuum by the pressure control circuit so as to retract the seals from sealing relation with the valve plate during shifting movement of the valve plate. The seal plate and fluid pressure control circuit are further adapted to effect fluid pressure flow across the sealing surfaces of the seals during retraction thereof so as to clean the seals while in their retracted positions.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: June 2, 1987
    Assignee: Cyclonaire Corporation
    Inventors: George C. Nelson, Roger L. Quaintance
  • Patent number: 4597716
    Abstract: A hand held and controlled air activated vacuum pump for testing vacuum systems and controls against atmospheric exudations that adversely affect their performance.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: July 1, 1986
    Assignee: Milton Industries, Inc.
    Inventor: Edward Evenson
  • Patent number: 4595344
    Abstract: An adjustable ejector capable of adjusting the fluid flow conditions resulting from fluid flow through the ejector. Adjustment means are provided for varying the fluid presentation size ratio of the inlet nozzle throat to the mixing throat. The adjustment means includes at least one adjustable path structure disposed in either the inlet nozzle or the mixing throat, or both.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: June 17, 1986
    Inventor: Patrick B. Briley
  • Patent number: 4586873
    Abstract: A mixer-ejector with jet effect incorporates inductor nozzles opening into a venturi profile conduit having in succession a highly convergent suction sleeve, a coupling wall and a diffuser. The coupling wall is a variable-profile venturi part, consisting of a hollow sleeve made of a distortable elastic material in a casing with leaktight sealing and incorporates means for introducing a fluid into the enclosure formed by the sleeve and the casing.
    Type: Grant
    Filed: November 9, 1984
    Date of Patent: May 6, 1986
    Assignee: BERTIN & Cie
    Inventors: Marc V. A. Lepretre, Lucien D. Balzano, Michel R. Caillault
  • Patent number: 4453755
    Abstract: In a vacuum cup assembly including a body having a vacuum chamber and a vacuum cup communicating with the vacuum chamber for supporting a workpiece, a venturi jet connected to a source of pressurized air and the vacuum chamber and an air outlet, there is provided an air blow-off silencer having an inlet mounted upon the air outlet, an intermediate apertured web and a silencer chamber containing an air silencer assembly. A poppet valve is guidably positioned within the web having an advanced rest position and retractable relative to a pressure chamber in the web to an air blocking position. Application of pressurized air to the pressure chamber moves the poppet valve to close the air outlet of the vacuum cup assembly, the pressurized air to the venturi assembly by-passing to the vacuum chamber to blow off the workpiece.
    Type: Grant
    Filed: August 6, 1982
    Date of Patent: June 12, 1984
    Assignee: Leland F. Blatt
    Inventors: Leland F. Blatt, John G. Laing
  • Patent number: 4380418
    Abstract: An aspirator using positive pressure from a suitable source generates a vacuum pressure when the primary source of vacuum pressure, typically the engine intake manifold, prodcuces insufficient vacuum pressure to operate a device such as a road speed control servomotor. The aspirator assembly is connected to the source of positive pressure and the engine intake manifold as well as to atmosphere and to the device to be operated by vacuum power. When there is sufficient intake manifold vacuum pressure for the desired purpose, there is no flow through the aspirator and the engine intake manifold supplies all of the vacuum needs of the servomotor. When aspirator vacuum pressure is required due to insufficient manifold vacuum pressure, the aspirator is opened to generate aspirated vacuum pressure and the connection between the servomotor and manifold vacuum is closed. The aspirated air is delivered to the engine intake manifold.
    Type: Grant
    Filed: February 25, 1981
    Date of Patent: April 19, 1983
    Assignee: General Motors Corporation
    Inventors: Daniel A. Crawford, Wayne A. Levijoki
  • Patent number: 4290446
    Abstract: Means adapted to receive a supply of compressed air and discharge the compressed air therefrom in a regulated manner via a selected port therein, control means within the means, for use in diverting the flow of the supply of compressed air within the means to thereby divert the air from the selected port to a further port in the means, whereby at least a partial vacuum condition is created in the selected port, allowing the ingress of air therethrough from without the means, the ingressed air mixing with the diverted air so as to be discharged through the further port.
    Type: Grant
    Filed: June 22, 1979
    Date of Patent: September 22, 1981
    Inventor: Alfred J. Seiler
  • Patent number: 4261332
    Abstract: A solar heating system for a swimming pool and the like is disclosed. The system includes a circulation circuit having a pump by which water is withdrawn from the pool, passed through a filter and returned to the pool. A solar collector assembly is provided and has flow and return lines connected in said circuit. The flow line is connected to a venturi unit in the main circuit and a control valve is provided immediately downstream of the venturi unit. When the control valve is closed, water is diverted through the venturi unit and into the solar collector assembly for heating. When the valve is open, the venturi unit induces a suction effect in the flow line which causes the solar collector assembly to be positively drained into the circuit. A vacuum breaker admits air to the collector assembly at this time.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: April 14, 1981
    Assignee: Sunglo Solar Ltd.
    Inventor: John M. Stewart
  • Patent number: 4073602
    Abstract: A vacuum producing device comprises a venturi unit which functions to produce or stop producing a vacuum after predetermined movement of a surrounding sleeve and air shut off member and includes silencing means for substantially reducing the sound of pressure air passing through the device.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: February 14, 1978
    Assignee: Sahlin International Inc.
    Inventor: Harlan R. Cagle