Condensed Liquid Receiver, E.g., Surge Tank Patents (Class 62/509)
  • Publication number: 20020092317
    Abstract: An adsorbent package is provided for use within the sealed canister of a fluid flow tube of an air conditioning system. The adsorbent package includes a desiccant bag formed of a pouch having a sealed first end and a substantially cylindrical second end. A filter cap is slidably and sealingly received within the second end of the pouch. The cap includes a resilient sealing ring formed proximate a porous end wall. The sealing ring slidably and sealingly engages an inner surface of the canister. The package is constructed of a non-woven spun bonded nylon and can therefore be snugly received within the tight confines of fluid flow tube or canister sections of an integrated condenser receiver.
    Type: Application
    Filed: January 8, 2001
    Publication date: July 18, 2002
    Applicant: Stanhope Products Company
    Inventors: Glenn D. Perrine, David V. Flaugher, John M. Evans
  • Publication number: 20020083733
    Abstract: An accumulator with an internal heat exchanger for use in an air conditioning or refrigeration system having a compressor, a condenser, an expansion device, and an evaporator is disclosed. In operation, the accumulator is placed in the system so high pressure, high temperature refrigerant flowing from the condenser and low pressure, low temperature refrigerant flowing from the evaporator simultaneously enter and flow through the heat exchanger disposed in the accumulator whereby the low pressure, low temperature refrigerant absorbs heat and thereby cools the high pressure, high temperature refrigerant. In one embodiment, the heat exchanger comprises a tube having at least one high temperature channel and one low temperature channel extending through the interior of the tube. In a second embodiment, the heat exchanger comprises a single spirally wound coaxial tube having an outer tube and an inner tube positioned within the outer tube.
    Type: Application
    Filed: December 29, 2000
    Publication date: July 4, 2002
    Inventors: Chao A. Zhang, Henry Mehraban, Richard G. Gibbons, Teodor Urdea
  • Publication number: 20020083734
    Abstract: A plate type condenser used in a cooling system is provided. The plate type condenser includes a casing for defining an upper space into which a gaseous refrigerant flows and is cooled, a lower space for accommodating a liquid refrigerant into which the gaseous refrigerant is condensed, and a connecting portion through which the upper and lower spaces communicate with each other. The casing substantially has a plate shape. A refrigerant inlet is installed at an upper portion of the casing to communicate with the upper space. A refrigerant outlet is installed at a lower portion of the casing to communicate with the lower space. A first adiabatic slit for separating the walls of the casing is formed between the upper space and the lower space except at the connecting portion.
    Type: Application
    Filed: September 26, 2001
    Publication date: July 4, 2002
    Inventors: Kyung-Il Cho, Byeoung Ju Ha, In-Seob Song
  • Publication number: 20020083732
    Abstract: A self-retaining adsorbent unit for use in combination with an elongated refrigerant-containing housing includes an elongated adsorbent-carrying porous fabric casing with adsorbent disposed therein. A retaining tab is formed at one end of the casing for securing the adsorbent unit to an external structure.
    Type: Application
    Filed: December 29, 2000
    Publication date: July 4, 2002
    Inventors: Samuel A. Incorvia, Peter R. Millen
  • Publication number: 20020083735
    Abstract: The present invention relates to a refrigerant condenser for motor vehicle air-conditioning systems of the type that include a tube/fin block, header tubes arranged on both sides of the tube/fin block and a collector arranged parallel to one header tube, wherein the header tubes have partitions for creating a multi-pass flow of the refrigerant, and the tube/fin block has an upper condensation region and a lower supercooling region. The collector is flow-connected via passage orifices to the condensation region, on the one hand, and to the supercooling region, on the other hand. The collector has approximately the same diameter or the same cross section as the adjacent header tube, and an additional container of larger cross section or larger diameter is provided for storing refrigerant and/or for receiving a dryer and/or filter.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 4, 2002
    Inventors: Olaf Neumann, Siegfried Tews
  • Publication number: 20020073730
    Abstract: In a core portion of the receiver-integrated condenser, a condensing portion is disposed at an upper side of a super-cooling portion. A receiving unit is disposed at one end side of the core portion in a width direction, and refrigerant is U-turned in a refrigerant passage of the super-cooling portion at the other end side of the core portion in the width direction. In addition, a refrigerant outlet of the super-cooling portion is provided at the one end side of the core portion, a connector connected to the refrigerant outlet is disposed at a direct lower side of the refrigerant outlet, and the connector has a bottom surface used as a connecting surface connected with a pipe connector of a refrigerant pipe.
    Type: Application
    Filed: November 20, 2001
    Publication date: June 20, 2002
    Inventors: Kazuji Shibata, Yoshio Yoshida
  • Patent number: 6405542
    Abstract: A refrigeration system including a condenser, a compressor, an evaporator and an accumulator is provided. The refrigeration system includes a device for preventing condensation of liquid refrigerant in the compressor when the refrigeration is switched off for a prolonged period of time. Particularly, the device comprises a first reservoir that is a part of the conduit connecting the compressor and the accumulator. The first reservoir is placed below the body of the compressor and has a larger cross-section than the rest of the conduit. The present invention also includes a second reservoir in the conduit connecting the compressor and the condenser. Like the first reservoir, the second reservoir is also placed below the body of the compressor and has a larger cross-section than the rest of the conduit. The condensation of the refrigerant in the compressor is prevented by the following method when the refrigeration system is shut off the vapor present in the conduit condense in the conduit.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: June 18, 2002
    Assignee: Visteon Global Technologies, Inc.
    Inventor: Galal Naguib Matta
  • Patent number: 6397628
    Abstract: An expansion valve comprises an orifice 30 formed in a valve body 10 and a valve member 9 fixed to a movable member 18. Movement of a diaphragm 4 is transmitted to an actuating rod 17 via a member 16, and the actuating rod 17 actuated the movable member 18 to control the opening amount of the path between the valve member 9 and the orifice 30. An orifice member 100 affixed to the orifice 30 is made of a material harder than the valve body 10, and free from erosion or other damage by a refrigerant, which will otherwise occur at the valve opening portion.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: June 4, 2002
    Assignee: Fujikoki Mfg. Co., Ltd.
    Inventors: Kazuhiko Watanabe, Masamichi Yano
  • Patent number: 6397627
    Abstract: In a receiver-integrated condenser, a super-cooling portion for cooling liquid refrigerant from a receiving unit is disposed between first and second condensing portions in a core portion in a vertical direction. Therefore, in an engine-idling, even when high-temperature air having passed through the receiver-integrated condenser is introduced again toward an upstream air side of the receiver-integrated condenser through a lower side of the receiver-integrated condenser, the high-temperature air is not introduced toward the arrangement position of said super-cooling portion, because the super-cooling portion is positioned at an upper side from the second condensing portion. Thus, super-cooling performance of refrigerant in the super-cooling portion of the core portion is prevented from being decreased even in the engine idling.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: June 4, 2002
    Assignee: Denso Corporation
    Inventors: Yoshifumi Aki, Etuo Hasegawa, Hiroki Matsuo, Tetsuji Nobuta, Michiyasu Yamamoto, Mitsukawa Kazuhiro, Eiji Okabayashi
  • Publication number: 20020059806
    Abstract: The refrigerant cycle apparatus comprises a communication pipe 32 which is an upper refrigerant flow-in means allowing the refrigerant which has passed through a condenser 2 to flow into the upper part of a liquid receiver 31, and a communication hole 33 which is a lower refrigerant flow-in means allowing the refrigerant which has passed through the condenser 2 to flow into the lower part of the liquid receiver 31, and the flow rate (Gr1) of refrigerant flowing into the upper part of the liquid receiver 31 from the communication pipe 32 is set at a value between 30 kg/h and 110 kg/h.
    Type: Application
    Filed: November 19, 2001
    Publication date: May 23, 2002
    Inventors: Tetsuji Nobuta, Takahisa Suzuki, Keisuke Nagai
  • Patent number: 6389843
    Abstract: A receiver dryer includes a canister with a cylindrical sidewall, a lower end wall, and an open upper end. An inlet tube extends upwardly in the canister from an inlet port in the lower end wall. A desiccant tube assembly, comprising a pair of tubes, is received over the inlet tube, with the inlet tube being closely received in one of the tubes of the desiccant tube assembly. A lower baffle is formed unitary with the lower end of the desiccant tube assembly, and a lower filter pad is received over the desiccant tube assembly and against the lower baffle. Loose desiccant is then poured into the canister. An upper filter pad and upper baffle are received over the desiccant tube assembly. A pick-up tube, secured to an upper end cap, is then closely received in the other of the tubes of the desiccant tube assembly. The upper end cap is then secured to the upper end of the canister.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: May 21, 2002
    Assignee: Parker-Hannifin Corporation
    Inventors: Neil J. McAllister, Cary Haramoto, William M. Mosher, Michael L. Ford, Tom C. Wilson
  • Patent number: 6385980
    Abstract: A flash tank employing valves for use in transcritical cycles of a vapor compression system to increase the efficiency and/or capacity of the system. Carbon dioxide is preferably used as the refrigerant. The high pressure of the system (gas cooler pressure) is regulated by controlling the amount of charge in the flash tank by actuating valves positioned on the expansion devices located at the entry and exit of the flash tank. If the pressure in the gas cooler is too high or too low, the valves can be adjusted to either store charge in or release charge from the flash tank. By regulating the amount of charge in the flash tank, the high pressure of the system can be controlled to achieve optimal efficiency and/or capacity.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: May 14, 2002
    Assignee: Carrier Corporation
    Inventor: Tobias H. Sienel
  • Publication number: 20020046572
    Abstract: This invention provides a condenser for a refrigerating machine which can improve the condensation characteristics by eliminating the accumulation of the condensed refrigerant in the condenser vessel. The condenser comprising the vessel 14 and a group of heat exchanger tubes 15 disposed in the vessel is used for condensing and liquefying the gaseous refrigerant by heat exchange between the gaseous refrigerant and cooling water circulating in the heat exchanger tubes. The condenser is constituted such that accumulated liquefied refrigerant is removed by forming one or a plurality of spaces in the area wherein the heat exchanger tubes are disposed.
    Type: Application
    Filed: October 23, 2001
    Publication date: April 25, 2002
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoichiro Iritani, Akihiro Kawada, Yoshinori Shirakata, Wataru Seki, Koji Hirokawa
  • Publication number: 20020046571
    Abstract: In a condenser module M for vehicular air-conditioning system a sub-cooler part positioned below a condenser part is constituted by a sub-cooler tube body R structurally separated from said condenser part K, said tube body extending substantially parallel to and along a lower side 4 of said condenser casing G and containing a dryer equipment as well as at least one collector chamber B for refrigerant.
    Type: Application
    Filed: July 26, 2001
    Publication date: April 25, 2002
    Inventor: Michele Bernini
  • Patent number: 6374632
    Abstract: In a receiver for separating gas refrigerant and liquid refrigerant and for storing liquid refrigerant for a refrigerant cycle, refrigerant form a condensing portion of a condenser flows into an upper side of a tank member of the receiver from a first refrigerant inlet and flows into a lower side of the tank portion from a second refrigerant inlet. Further, liquid refrigerant stored in the tank member of the receiver is discharged to an outside through a refrigerant outlet. Accordingly, refrigerant from the condensing portion of the condenser flows into the tank portion of the receiver from both upper and lower sides of a gas-liquid boundary surface. As a result, it can prevent the gas-liquid boundary surface of the receiver from being disturbed during a refrigerant introduction of the receiver, while cooling effect of the upper side of the receiver is effectively improved.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: April 23, 2002
    Assignee: Denso Corporation
    Inventors: Tetsuji Nobuta, Hiroki Matsuo, Kazuya Makizono
  • Patent number: 6370909
    Abstract: A condenser includes a refrigerant inlet, a refrigerant outlet, a core portion having a refrigerant passage for introducing refrigerant from the refrigerant inlet to the refrigerant outlet while condensing the refrigerant, and decompressing means provided at a part of the refrigerant passage, the decompressing means decompressing a refrigerant pressure. The refrigerant passage located at an upstream side of the decompressing means condensates at least a part of high-pressure gaseous refrigerant into a liquified refrigerant. The decompressing means decompresses the liquified refrigerant into a low-pressure gaseous refrigerant. The refrigerant passage located at a downstream side of the decompressing means re-condensates the low-pressure gaseous refrigerant.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: April 16, 2002
    Assignee: Showa Denko K.K.
    Inventors: Hirohiko Watanabe, Ryoichi Hoshino, Yasuhiro Takahashi
  • Patent number: 6360560
    Abstract: A condenser includes a plurality of generally U-shaped fluid carrying tubes having free ends and a manifold matingly engaging the free ends of the tubes and having an interior chamber. The manifold includes a receiver dryer disposed in the interior chamber and having a first fluid conduit wall and a second conduit wall extending axially to form a generally parallel first fluid passageway and second fluid passageway in fluid communication with the tubes and a dryer capsule being disposed in the interior chamber to dry fluid in the manifold.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: March 26, 2002
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Greg Whitlow, Ramchandra L Patel, William Melnyk, Wen Fei Yu
  • Patent number: 6357256
    Abstract: To provide an air conditioner for passenger transportation vehicles, in particular, for buses, comprising a refrigerant circuit including at least one condenser unit, through which the refrigerant flows in several heat exchanger coils connected parallel to one another, and a collecting flask receiving refrigerant condensed in the condenser unit and serving to compensate the fluctuations in the refrigerant volume occurring during operation of the air conditioner, wherein the collecting flask is accommodated in a space-saving manner and can be mounted with low material and work expenditure, it is proposed that the heat exchanger coils of the condenser unit open directly into the collecting flask via a respective connection line.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: March 19, 2002
    Assignee: Carrier Corporation
    Inventor: Andreas Mallek
  • Patent number: 6349564
    Abstract: The improved refrigeration system of the present invention includes an accumulator with a diffuser pipe extending downwardly into the upper end of a vapor refrigerant tank, the diffuser pipe extending from an evaporator and discharging vapor refrigerant therefrom into the tank. The diffuser pipe includes a lower end located within the interior of the tank which is expanded in diameter relative to the upper end, thereby reducing the velocity of fluid flowing through the pipe and entering the accumulator tank. A diffusion plate is mounted in the lower end of the diffuser pipe, to further diffuse fluid flowing therethrough. The improved refrigeration system also includes a tee having a stem portion extending horizontally from the condenser of the system, and a pair of upper and lower arms connected in a vertical orientation to the stem. The tee lower arm is connected to the receiver and the upper arm is connected to a purge connection.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: February 26, 2002
    Inventors: Fredric J. Lingelbach, John F. Lingelbach
  • Patent number: 6349562
    Abstract: The application discloses a collection vessel 1 for a condenser of an air-conditioning system, preferably for motor vehicles. The collection vessel 1 holds in its interior a drier that can be exchanged via an opening which can be closed by means of a releasable lid. The lid is designed as a piston-like, cylindrical stopper 3, and be sealed and guided in an axially displaceable manner in a corresponding hole in the collection vessel 1, 2. The stopper 3 is pressed outwardly against a securing ring 9 by the internal pressure (pi) in the vessel, which securing ring is fixed in an annular groove 10 in the collection vessel 2 and is secured against release by a blocking shoulder 8 on the stopper 3. Due to this measure, the lid 3 of the collection vessel 2 cannot be removed when pressure is prevailing inside the vessel. Only when the vessel is depressurized can the securing ring and therefore also the stopper 3 be removed, so that a drier cartridge can be exchanged.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: February 26, 2002
    Assignee: Behr GmbH & Co.
    Inventors: Martin Kaspar, Friedrich Krehl, Kurt Molt, Siegfried Tews
  • Patent number: 6343486
    Abstract: A supercritical vapor compression cycle is provided having an improved cooling efficiency in the gas cooler, capable of automatically controlling the necessary circulating coolant quantity by adjusting the high side pressure. The supercritical vapor compression cycle comprises a compressor 1, a gas cooler (radiator) 2, a diaphragm resistor 4a, and evaporators, all of which is connected serially by a pipe 1 so as to form a closed circuit operated at the supercritical pressure at the high side, and further comprises a pressure control valve for controlling the pressure at the outlet of the gas cooler 2 so as to obtain the maximum performance factor of the supercritical vapor compression cycle, a reservoir 5, through which the pipe 6 from the outlet of the evaporator penetrates, for storing the liquid coolant 5a, and a communication pipe 5b communicating the bottom of the reservoir 5 with the pipe 6 connecting the pressure control valve with the diaphragm resistor.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: February 5, 2002
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Harunobu Mizukami
  • Patent number: 6341647
    Abstract: A separator-integrated condenser includes a core portion, a header tank and a separating unit integrally formed with the header tank for separating gas-liquid two-phase refrigerant into gas refrigerant and liquid refrigerant and storing the liquid refrigerant therein. An inlet through which refrigerant in the header tank is introduced into the separating unit is disposed at one longitudinal end of the separating unit, and an outlet through which refrigerant is discharged from the separating unit is disposed at the other longitudinal end of the separating unit. When the condenser is mounted to be inclined at up to 45 degrees with respect to a horizontal direction in a longitudinal direction of the header tank and the separating unit, the inlet is disposed at an upper side of the outlet. As a result, gas-liquid two-phase refrigerant is sufficiently separated by the separating unit.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: January 29, 2002
    Assignee: Denso Corporation
    Inventors: Tetsuji Nobuta, Hiroki Matsuo
  • Publication number: 20020002841
    Abstract: In a refrigerant cycle system, a low-pressure side gas-liquid separator is disposed between a refrigerant outlet side of an evaporator and a refrigerant suction side of a compressor so that gas refrigerant is sucked into the compressor, and a throttle passage through which liquid refrigerant is introduced into the compressor is disposed in the low-pressure side gas-liquid separator. Further, in a condenser for condensing gas refrigerant discharged from the compressor in a cooling mode, both first and second heat-exchanging units are provided in this order in a refrigerant flow direction, and a high-pressure side gas-liquid separator is disposed between the first and second heat-exchanging units.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 10, 2002
    Inventors: Satoshi Izawa, Yoshiaki Takano, Mikiharu Kuwahara
  • Patent number: 6334333
    Abstract: A core section (10) of a condenser is formed such that a plurality of heat exchanging tubes (4), while being vertically arranged in multiple stages, are disposed between a pair of header pipes (2, 3). A reservoir tank (6) is joined to the header pipe (3). The header pipe (3) is communicatively connected to the reservoir tank (6) by a refrigerant passage of a connection member (40). The connection member (40) connects a portion of the header pipe (3) which is out of a joining portion of the header pipe (3) where it is joined to the reservoir tank (6) to a portion of the reservoir tank (6) which is out of a joining portion of the reservoir tank (6) where it is joined to the header pipe (3).
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: January 1, 2002
    Assignee: Calsonic Kansei Corporation
    Inventor: Masayoshi Shinhama
  • Patent number: 6330810
    Abstract: The condensing apparatus in a refrigeration cycle includes a condenser having a condensing portion and a receiver-dryer. The receiver-dryer includes a tank main body, a desiccant-filled-portion arranged so that an upper space is formed at an upper part in the tank main body, a refrigerant-introducing-passage for introducing the condensed refrigerant into the tank main body from the condenser, and a refrigerant-discharging-passage for discharging the liquefied refrigerant in the tank main portion. The refrigerant-introducing-passage has an outlet which opens toward an inner bottom of the tank main body. The refrigerant-discharging-passage penetrates the desiccant-filled-portion and has an inlet formed so as to open toward the upper space at an upper end of the desiccant-filled-portion and an outlet formed at a bottom portion of the tank main body.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: December 18, 2001
    Assignee: Showa Denko K.K.
    Inventors: Keiji Yamazaki, Yoshihiko Seno, Osamu Kamoshida, Yasuhiro Takahashi
  • Publication number: 20010039809
    Abstract: A subcooling-type condenser includes a refrigerant condensation core and a subcooling core for supercooling refrigerant condensed by the refrigerant condensation core. A header portion corresponding to an entrance portion of the subcooling core is formed as a liquid refrigerant storage portion, and a capacity of the header Vh is set within a range of 100 cc≦Vh≦250 cc. Thus, subcooling-type condenser having a desired re-liquefaction function without using a separately formed liquid tank may be achieved, thereby reducing the condenser's size and cost.
    Type: Application
    Filed: April 30, 2001
    Publication date: November 15, 2001
    Inventors: Kenichi Wada, Hirotaka Kado, Toshiharu Shimmura
  • Patent number: 6311508
    Abstract: In a refrigerating apparatus using an HFC group refrigerant, the performance is improved by increasing the refrigerating capacity and a stable operation is made possible. In order to achieve this, a cycle system in a refrigerator is structured so as to connect a compressor, a condenser, a liquid receiver and a supercooler in this order. In an air-cooled separation type refrigerator, the liquid receiver is disposed within an air-cooled type condenser unit. Further, in the case where a flush gas is liable to be generated in a liquid pipe, a vapor-liquid separator is disposed within the compressor unit integral with an accumulator and separated therefrom by a partition plate.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: November 6, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Sakurai, Hideo Takemoto
  • Patent number: 6311507
    Abstract: A refrigeration system comprising a compressor for compressing a refrigerant. The compressor uses an oil for lubrication. A condenser receives the compressed refrigerant and condenses at most of the refrigerant to a liquid. A thermo-siphon vessel receives and stores refrigerant from the condenser. An oil cooler receives liquid refrigerant from the thermo-siphon vessel and uses the liquid refrigerant to cool the compressor oil. An air unit receives liquid refrigerant from the thermo-siphon vessel and uses the liquid refrigerant to cool an enclosure. A receiver receives and stores any overflow liquid refrigerant from the thermo-siphon vessel, vapor and liquid refrigerant from the oil cooler, and releases the overflow back to the air unit as needed. A valve before the receiver restricts the flow of refrigerant from the thermo-siphon vessel to maintain the pressure in the thermo-siphon vessel and receiver above a given point.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: November 6, 2001
    Assignee: Carter Burgess, Incorporated
    Inventor: Walter Gameiro
  • Publication number: 20010035025
    Abstract: A condenser includes a refrigerant inlet, a refrigerant outlet, a core portion having a refrigerant passage for introducing refrigerant from the refrigerant inlet to the refrigerant outlet while condensing the refrigerant, and decompressing means provided at a part of the refrigerant passage, the decompressing means decompressing a refrigerant pressure. The refrigerant passage located at an upstream side of the decompressing means condensates at least a part of high-pressure gaseous refrigerant into a liquified refrigerant. The decompressing means decompresses the liquified refrigerant into a low-pressure gaseous refrigerant. The refrigerant passage located at a downstream side of the decompressing means re-condensates the low-pressure gaseous refrigerant.
    Type: Application
    Filed: June 18, 2001
    Publication date: November 1, 2001
    Applicant: Showa Denko K.K.
    Inventors: Hirohiko Watanabe, Ryoichi Hoshino, Yasuhiro Takahashi
  • Patent number: 6308736
    Abstract: A pressure vessel including a mounting block for supporting and retaining an inlet and an outlet tube to the pressure vessel. The mounting block includes a valve that communicates with an interior of the vessel and fastens the mounting block to a top of the pressure vessel. The mounting block enables access to the interior of the housing for accessories such as the valve, a sight glass, or a pressure switch, and the accessories can be either permanently or removably attached to the pressure vessel at the top or sides thereof. The mounting block may accommodate more than one valve.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: October 30, 2001
    Assignee: Automotive Fluid Systems, Inc.
    Inventors: Larry Lafer, Robert J. Slais
  • Publication number: 20010032478
    Abstract: A receiver dryer includes a canister with a cylindrical sidewall, a lower end wall, and an open upper end. An inlet tube extends upwardly in the canister from an inlet port in the lower end wall. A desiccant tube assembly, comprising a pair of tubes, is received over the inlet tube, with the inlet tube being closely received in one of the tubes of the desiccant tube assembly. A lower baffle is formed unitary with the lower end of the desiccant tube assembly, and a lower filter pad is received over the desiccant tube assembly and against the lower baffle. Loose desiccant is then poured into the canister. An upper filter pad and upper baffle are received over the desiccant tube assembly. A pick-up tube, secured to an upper end cap, is then closely received in the other of the tubes of the desiccant tube assembly. The upper end cap is then secured to the upper end of the canister.
    Type: Application
    Filed: February 5, 2001
    Publication date: October 25, 2001
    Inventors: Neil J. McAllister, Cary Haramoto, William M. Mosher, Michael L. Ford, Tom C. Wilson
  • Patent number: 6301926
    Abstract: A reservoir is screwed axially into a base, itself brazed to a collecting compartment of the condenser. It is linked to the former by means of channels recessed into the base. The threads securing the reservoir are protected from any contact with the refrigerating fluid by sealing rings and from external attack by a sleeve covering the outside of the junction area between the reservoir and the base. Applied to air-conditioning application for automobile passenger compartments.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: October 16, 2001
    Assignee: Valeo Thermique Moteur
    Inventors: Stéphane Avequin, André Paquet
  • Patent number: 6295832
    Abstract: A receiver tank (2) formed into an airtight container having an inlet port (24) and an outlet port (25) for a refrigerant, wherein separates the refrigerant introduced in a gas-liquid mixture state is separated, and the separated liquid refrigerant is stored therein and discharged therefrom so to continuously supply it, and the airtight container is formed as a double tube of an inner tube (16) and an outer tube (17), which have their tops mutually communicated but their bottoms not; the inlet port is formed to communicate with the bottom portion of a passage formed between the two tubes; and the outlet port is formed at lower end portions of the inner and outer tubes to communicate with the interior of the inner tube. The structure of no communication between the outer tube and the inner tube was achieved by having a structure of fitting either of them with the other or by disposing a joint member. A structure for prevention of the inner tube from tilting is provided.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: October 2, 2001
    Assignee: Zexel Corporation
    Inventors: Soichi Kato, Akihiko Takano
  • Publication number: 20010010263
    Abstract: A connecting device for a heat exchanger which has a fluid circulating channel formed with an opening at one end thereof and an opening at the other end thereof, the openings being formed as juxtaposed in one side of the heat exchanger. The connecting device comprises a blocklike connector body having two horizontal through bores corresponding to the respective openings and fixed to the heat exchanger with the through bores in coincidence with the respective openings. A tubular member is fluid-tightly fitted in each of the through bores and has a connecting end projecting toward a connectable device. The connecting end is in the form of a spigot fittable in a socket of the connectable device.
    Type: Application
    Filed: March 14, 2001
    Publication date: August 2, 2001
    Applicant: Showa Aluminum Corp.
    Inventor: Shigeharu Ichiyanagi
  • Patent number: 6267173
    Abstract: A collection box with an integrated reservoir for a heat exchanger, has a cylindrical tubular wall and a separation wall, disposed inside the tubular wall to delimit a collection compartment and a reservoir compartment. The tubular wall is equipped with spaced holes to receive the ends of tubes of a bundle of tubes. The separation wall comprises a central core prolonged on either side by a first edge region and by a second edge region having profiles each designed and suitable to be applied and soldered against the inside of the tubular wall.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: July 31, 2001
    Assignee: Valeo Thermique Moteur
    Inventors: Zaiqian Hu, Pierre Sabathie, Michel Guerand
  • Patent number: 6260379
    Abstract: A condenser having an integral receiver dryer includes a first manifold, a second manifold, and a plurality of fluid carrying tubes extending between and in fluid communication with the first manifold and second manifold. The condenser also includes a receiver dryer being internal to and integral with a housing of one of the first manifold and the second manifold and including a dryer material disposed in the housing to dry fluid therein.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: July 17, 2001
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Brett Lynn Manwill, Corey Homer, Greg Whitlow, John Joseph Meyer, Thaddeus J. Waskiewicz, William Meinyk
  • Patent number: 6253572
    Abstract: A suction accumulator for a refrigeration system includes a pair of closed shells arranged in spaced relation one within the other to define a space therebetween effective to prevent sweating of the inner shell during performance of its normal suction accumulator function. The space is connected between the condenser and the expansion valve of the system to function as a receiver for warm refrigerant thereby creating heat exchange through the wall of the inner shell.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: July 3, 2001
    Assignee: Refrigeration Research, Inc.
    Inventors: Edward W. Bottum, Sr., Edward W. Bottum, Jr.
  • Patent number: 6250103
    Abstract: A condenser includes a refrigerant inlet, a refrigerant outlet, a core portion having a refrigerant passage for introducing refrigerant from the refrigerant inlet to the refrigerant outlet while condensing the refrigerant, and decompressing means provided at a part of the refrigerant passage, the decompressing means decompressing a refrigerant pressure. The refrigerant passage located at an upstream side of the decompressing means condensates at least a part of high-pressure gaseous refrigerant into a liquified refrigerant. The decompressing means decompresses the liquified refrigerant into a low-pressure gaseous refrigerant. The refrigerant passage located at a downstream side of the decompressing means re-condensates the low-pressure gaseous refrigerant.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: June 26, 2001
    Assignee: Showa Denko K.K.
    Inventors: Hirohiko Watanabe, Ryoichi Hoshino, Yasuhiro Takahashi
  • Publication number: 20010000880
    Abstract: Supplemental heat mechanisms are employed to ensure that refrigerant in evaporative cold plates for electronic modules not only returns to the compressor in a vapor phase but also further operates to maintain electronic circuit junction temperatures at relatively constant temperature levels. Furthermore, the supplemental heating system responds within a time frame which is faster than other methods which may be employed to achieve the same or similar objectives. In particular, in preferred embodiments of the present invention pressure and temperature measurements of refrigerant exiting the evaporative cold plate are employed to control the turning on of supplemental electrical resistive heating elements to make up for thermal dissipation fluctuations occurring in the electronic module. The supplemental heat may be provided either with a single flat element or through the use of in-line heating elements.
    Type: Application
    Filed: December 19, 2000
    Publication date: May 10, 2001
    Applicant: International Business Machines Corporation
    Inventors: Richard C. Chu, Gregory M. Chrysler
  • Patent number: 6223556
    Abstract: Ease of service is provided in an integrated condenser (20) and receiver (22) including two nonhorizontal headers (24), a plurality of tubes (28) extending between the headers (24) to establish a plurality of hydraulically parallel flow pads between the headers (24); at least one partition (48, 50, 52) in each of the headers for causing refrigerant to make at least two passes, including an upstream pass and a downstream pass, through the condenser (20); and an elongated receiver (22) mounted on one of the headers (24). The elongated receiver (22) includes an interior chamber (61), an upper inlet (70) connected to a downstream side of the upstream pass for the flow of refrigerant form the upstream pass to the interior chamber (61), a lower liquid outlet (71) connected to an upstream side of the downstream pass for the flow of liquid refrigerant from the interior chamber (61) to the downstream pass, and a port (62) to allow access to interior chamber (61) for servicing the receiver (22).
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: May 1, 2001
    Assignee: Modine Manufacturing Company
    Inventors: Richard M. De Keuster, Lawrence W. Gabbey, Michael J. Swee, Thomas J. Thielen
  • Patent number: 6220044
    Abstract: In a refrigerating apparatus using an HFC group refrigerant, the performance is improved by increasing the refrigerating capacity and a stable operation is made possible. In order to achieve this, a cycle system in a refrigerator is structured so as to connect a compressor, a condenser, a liquid receiver and a supercooler in this order. In an air-cooled separation type refrigerator, the liquid receiver is disposed within an air-cooled type condenser unit. Further, in the case where a flush gas is liable to be generated in a liquid pipe, a vapor-liquid separator is disposed within the compressor unit integral with an accumulator and separated therefrom by a partition plate.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: April 24, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Sakurai, Hideo Takemoto
  • Patent number: 6209348
    Abstract: A condenser equipped with a receiver includes an inlet portion for refrigerant of the receiver opening in an axial direction of the receiver; an outlet portion for refrigerant of the condenser communicating with the inlet portion of the receiver; and an insertion portion provided on either the inlet portion or the outlet portion. The insertion portion is inserted into the outlet portion or the inlet portion, and the inlet portion and the outlet portion are brought into contact with each other to make a gastight condition between the inlet portion and the outlet portion. In this structure, the workability for attaching the receiver to the condenser and detaching the receiver from the condenser may be improved. Moreover, the strength for fixing the receiver to the condenser may be increased.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: April 3, 2001
    Assignee: Sanden Corporation
    Inventors: Toshiharu Shinmura, Hirotaka Kado
  • Patent number: 6209349
    Abstract: The invention concerns an air conditioning condenser for a motor vehicle passenger compartment comprising a reservoir mounted on a base. The reservoir is axially screwed in the base, itself soldered on a manifold box of the condenser, communicating therewith through ducts arranged in the base. The base further comprises a mounting pin for helping to fix the condenser on the support, and/or a linking duct for connecting the condenser to the rest of the refrigerating circuit.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: April 3, 2001
    Assignee: Valeo Thermique Moteur
    Inventors: Zaiqian Hu, GĂ©rard Gille
  • Patent number: 6189334
    Abstract: In an air conditioner for a motor vehicle, an internal heat exchanger is combined with a condenser and a collector.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: February 20, 2001
    Assignee: Behr GmbH & Co.
    Inventors: Bernd Dienhart, Hans-Joachim Krauss, Hagen Mittelstrass, Karl-Heinz Staffa, Christoph Walter
  • Patent number: 6182744
    Abstract: A condenser has an outlet side region close to an outlet for discharging refrigerant from the condenser. The outlet side region does not face auxiliary radiator, which is disposed on a cooling air upstream side of the condenser. Accordingly, low temperature cooling air that does not pass through the auxiliary radiator can flow into the outlet side region of the condenser in which the refrigerant is lowered most. As a result, a difference in temperature between the refrigerant and the cooling air at the outlet side region becomes large. This prevents deterioration of cooling capacity of the condenser.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: February 6, 2001
    Assignee: Denso Corporation
    Inventors: Hiroki Nakamura, Toshihiko Muraki, Hiroshi Nonoyama, Takayoshi Matsuno, Shunkichi Suzaki
  • Patent number: 6178772
    Abstract: An improved refrigerant receiver which includes an improved combined filter and adsorbent unit consisting of a filter extending outwardly from an elongated tube which is mounted on a refrigerant outlet conduit of the receiver and which has an outer edge with the wall of the receiver so that all refrigerant must pass through the filter, and at least one container of adsorbent material mounted within the receiver so as to be exposed to the flow of refrigerant passing through the filter without completely obstructing the portion of the receiver through which this flow passes.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: January 30, 2001
    Assignee: Multisorb Technologies, Inc.
    Inventor: Samuel A. Incorvia
  • Patent number: 6170272
    Abstract: The present disclosure relates to a refrigeration system including a compressor for compressing a refrigerant, a condenser in fluid communication with the compressor for condensing compressed refrigerant received from the compressor, and a reservoir in fluid communication with the condenser for holding condensed refrigerant received from the condenser. The system also includes a heat exchanger in fluid communication with the reservoir, an expansion device in fluid communication with the heat exchanger for decompressing cooled refrigerant received from the heat exchanger, and at least one evaporator in fluid communication with the expansion device for evaporating decompressed refrigerant received from the expansion device.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: January 9, 2001
    Assignee: Systematic Refrigeration, Inc.
    Inventor: Thomas John Backman
  • Patent number: 6170288
    Abstract: An improved refrigerant receiver which includes an improved combined filter and adsorbent unit consisting of a filter extending outwardly from an elongated tube which is mounted on a refrigerant outlet conduit of the receiver and which has an outer edge with the wall of the receiver so that all refrigerant must pass through the filter, and at least one container of adsorbent material mounted within the receiver so as to be exposed to the flow of refrigerant passing through the filter without completely obstructing the portion of the receiver through which this flow passes.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: January 9, 2001
    Assignee: Multisorb Technologies, Inc.
    Inventor: Samuel A. Incorvia
  • Patent number: 6170287
    Abstract: A condenser (10) with a return header tank (14) has a receiver or reservoir canister (22) physically attached along side the return header tank (14), and open thereto through a discrete upper inlet (20) and lower outlet (21). The bottom of canister (22) is closed by an end cap (34) that is, preferably, welded or brazed in place. Before end cap (34) is attached, a tube of desiccant material (24) is installed and located within canister (22) by a standoff (26) comprised of a tight fitting, notched, disk shaped base (28) and narrow central post (30) which is comparable in length to the height of the inlet (20) above the lower end cap (34). The tight fit allows the tube (24) to be inserted up into the canister (22), well away from the bottom of canister (22) and free of heat damage as the end cap (34) is attached. Later, in operation, the central post (30) keeps the tube (24) located clear of the inlet (20) and outlet (21).
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: January 9, 2001
    Assignee: Delphi Technologies, Inc.
    Inventors: Frank Joseph Leitch, Michael Czajkowski, Robert Charles Gmerek, Steve C. Brick
  • Patent number: 6158503
    Abstract: In an air conditioning condenser having a fluid tank with interchangeable cartridge the tank is screwed axially into a connecting base which is in turn brazed to a header box of the condenser. It contains an interchangeable axial cartridge and is in communication with the header box through ducts provided in the connecting base. Applications include apparatus for air conditioning the passenger space of a motor vehicle.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: December 12, 2000
    Assignee: Valeo Thermique Moteur
    Inventors: Gerard Gille, Patrick Balthazard