With Intercooler Patents (Class 417/243)
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Patent number: 4460319Abstract: A two-stage rotary compressor makes use of a piston-vane arrangement where both stages are built side-by-side and where the same members (piston-vanes) work for both stages, the "axial pistons" of the second stage becoming the dividing "vanes" in the first stage.Type: GrantFiled: January 25, 1983Date of Patent: July 17, 1984Inventor: Baruir Ashikian
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Patent number: 4390322Abstract: A double acting multistage hydraulically driven gas compressor using a free floating piston including a hydraulic piston and a number of gas compressing pistons, those gas compressing pistons being sealed by high pressure oil supplied from the hydraulic drive stage.Type: GrantFiled: February 10, 1981Date of Patent: June 28, 1983Inventor: Tadeusz Budzich
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Patent number: 4362462Abstract: An improved method of cooling compressed gases intermediate successive compressive stages in a multi-stage intercooled compressor system without forming condensate is provided. Cooling water flow to an intercooler intermediate successive compressive stages is regulated as a function of the actual temperature of the gas downstream of the intercooler and a set point temperature generated as a function of a linear approximation relating the inlet dew point temperature and the pressure of the gases downstream of the intercooler.Type: GrantFiled: March 11, 1980Date of Patent: December 7, 1982Assignee: M.A.N. Uternehmensbereich G.H.H. SterkradeInventor: Wilfried Blotenberg
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Patent number: 4334833Abstract: A four-stage gas compressor including: a double-acting piston operable by pressurized oil and provided with first and second hollow opposed piston rods the first of which is connected to a first-stage piston and the second of which is connected to a second-stage piston; said first and second-stage pistons being arranged to slide in first and second jackets respectively and being a sliding fit upon first and second cylindrical bodies respectively; said first and second cylindrical bodies respectively being fixed to first and second opposed heads; a first axial suction and delivery duct leading to an end face of said first cylindrical body, a third stage chamber being defined between said end face and one face of the double-acting piston; and a second axial suction and delivery duct leading to an end face of said second cylindrical body, a fourth stage chamber being defined between said end face of said second cylindrical body and the other face of the double-acting piston.Type: GrantFiled: October 28, 1980Date of Patent: June 15, 1982Inventor: Antonio Gozzi
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Patent number: 4288204Abstract: An aggregate wherein a hollow support carries a multi-stage compressor and one or two heat exchangers. The outlet of the first stage of the compressor communicates with a first chamber of the support by way of a first passage, the first chamber communicates with the inlet of the second stage of the compressor, the outlet of the second stage communicates with the inlet of the next-following stage by way of a second passage and a second chamber in the support, and the outlet of the next-following stage communicates with an outlet opening of the support. Such outlet opening can admit compressed fluid medium to an aftercooler. Each heat exchanger is connected between the outlet of one of the first and second stages and the respective passage, and the next-following stage of the compressor is disposed between the first and second stages. The outlets of the stages are directly connected with channels which are machined into the support and diverge in the direction of flow of fluid medium therethrough.Type: GrantFiled: February 23, 1979Date of Patent: September 8, 1981Assignee: Klein, Schanzlin & Becker AGInventor: Albin Viertler
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Patent number: 4279574Abstract: The system described is useful in connection with a gas compressor that has a heat exchanger. Water conduits, a water pump and water control valve and cooler are connected in such a manner that the water circulated through the heat exchanger is directed to an energy consumption device wherein the heat is extracted to heat a room, office or the like. The control valve and cooler are arranged in the conduit so that the energy consumption device can be selectively bypassed by all or a portion of the water, depending on the heating demand.Type: GrantFiled: April 23, 1979Date of Patent: July 21, 1981Assignee: Dresser Industries, Inc.Inventor: Fred K. Kunderman
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Patent number: 4264282Abstract: An air compressor apparatus including noise-reducing means for converting ambient air into compressed air includes an air compressor surrounded by a noise-reducing enclosure and a plurality of shock-absorbing means disposed between the air compressor and the enclosure. The enclosure includes a pair of interior baffle plates which divide the interior of the enclosure into an air inlet chamber, an air outlet chamber and an air compressor chamber therebetween. The air inlet chamber and the air outlet chamber are each open to the atmosphere at a first lower end and are each in communication with the air compressor chamber at a second opposite upper end. The enclosure further includes a fan positioned within the baffle plate between the air compressor chamber and the air outlet chamber which is operable to draw air in through the open end of the air inlet chamber across the air compressor chamber and out the air outlet chamber.Type: GrantFiled: January 3, 1979Date of Patent: April 28, 1981Assignee: K. C. Mosier CompanyInventor: William T. Crago
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Patent number: 4254758Abstract: With this improved system the final gas discharge temperature can be one hundred degrees lower than the water it heated.Two high velocity, self pressurized vortexes are created by two high speed impeller wheels, one in each stage of the two-stage heat reclaiming system, these vortexes draw the heat carrying discharge gas from the furnace into the two-stage heat exchanger, compressing and compounding it, creating higher heat levels, which allows more wasted heat to be recovered and used. The heat exchanging surfaces of the system are scrubbed by the maximum heat and pressure of these vortexes which have a velocity of many thousands of feet per minute, this action increases the thermal conductivity of these surfaces over 3.5 times, heating the water hotter and cooling the gas faster than the conventional system.Type: GrantFiled: August 17, 1979Date of Patent: March 10, 1981Inventor: George W. Banks
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Patent number: 4242878Abstract: An isothermal compressor apparatus and method, the apparatus including a compression chamber, a piston operable in the compression chamber and an evaporation chamber disposed in heat exchange relationship with the compression chamber, the evaporation chamber being interconnected with a closed refrigerant system. Valves control the flow of compressible gas through the compression chamber while heat exchange coils carry the compressed gas from the compression chamber through the evaporation chamber. The method includes compressing a gas and rapidly removing thermal energy imparted to the gas by the compression process with a refrigerant in the evaporation chamber.Type: GrantFiled: January 22, 1979Date of Patent: January 6, 1981Assignee: Split Cycle Energy Systems, Inc.Inventor: VerDon C. Brinkerhoff
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Patent number: 4167371Abstract: A method and apparatus for transferring heat regeneratively in a rotating heat exchanger. The heat exchanger provides for the cold gas stream to be heated alternate compression and expansion with heat addition usually during the expansion phase of the compression-expansion step from a warmer fluid. The fluid to be heated is usually a gas, while the fluid releasing heat may be either a gas or liquid. The heat element is a folded member usually in the form of bellows mounted concentric with rotor shaft, with baffles within to provide for outward and inward movement of the gas. Due to the heat addition especially during the expansion steps, the gas to be heated gains in pressure and usually this pressure gain is work free, and in magnitude is similar to the constant volume heat addition pressure gain which is well known.Type: GrantFiled: September 6, 1977Date of Patent: September 11, 1979Inventor: Michael Eskeli
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Patent number: 4155684Abstract: An exhaust-gas turbocharger includes a low pressure stage having a compressor wheel and a turbine wheel mounted on one shaft and a high pressure stage having a compressor wheel and a turbine wheel mounted on another shaft. The two shafts are arranged coaxially one within the other, and the compressor and turbine units of either stage can be located on the inner or outer shaft.Type: GrantFiled: January 12, 1978Date of Patent: May 22, 1979Assignee: BBC Brown Boveri & Company LimitedInventors: Georges Curiel, Ulrich Linsi
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Patent number: 4125345Abstract: A turbo-fluid device in the form of a package, in which a heat exchanger used as a cooler for a turbo-compressor, desiccator, or turbo-refrigerator; or a heater for a turbo-generator is formed in an annular form, while there are housed in the interior of the annular heat exchanger an electric motor or generator, transmission, compressor and/or turbine, oil feed device and other accessories, thereby decreasing sound level and reducing the size and the weight of the device.Type: GrantFiled: September 15, 1975Date of Patent: November 14, 1978Assignee: Hitachi, Ltd.Inventors: Yoichi Yoshinaga, Haruo Mishina, Kazuhiro Sunobe
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Patent number: 4121839Abstract: A sealing system for use in a composite multi-stage pump or pumps is disclosed which utilizes part of the liquid pressurized by the pump to moderate sealing conditions by introducing said liquid to a portion or portions around the shaft, where the sealing conditions are most critical, and by thus reducing the pressure imposed on the sealing portion make the designing of seals easy. Also, by introducing pressurized liquid of relatively low temperature to the critical portion(s), minimum flow rate is lowered and thus the operational range of the pump is extended.When two or more pumps are employed for maintaining continuous operation by alternately switching the working pumps, a flow passage is provided between the pumps so the pressurized liquid from the pump under operation can be introduced to the non-operating pump, thus utilizing the pressurized liquid to prevent liquid kept under pressure in the non-operating pump from leaking therefrom.Type: GrantFiled: August 9, 1977Date of Patent: October 24, 1978Assignees: Mitsui Toatsu Chemicals, Inc., Toyo Engineering Corporation, Ebara CorporationInventors: Shiro Takano, Toshio Jojima, Hajime Oshida, Tadashi Yokoi, Muneo Kato, Tadashi Koizumi
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Patent number: 4111609Abstract: A compact fluid compressor embodying a housing formed of a plurality of stacked sections with relatively large fluid flow passageways cast therein and wherein the overall outline of the compressor's housing is substantially rectangular. This arrangement eliminates numerous external piping and the connections needed therefor, found in prior art compressors, and provides a lightweight and good appearing compressor as well as a highly efficient one. The small size, considering the horse power thereof, is due in part to the utilization therein of the Braun mechanism, a counterbalancing and anti-vibration drive mechanism between the power means and the compressor piston or pistons, which mechanism is fully disclosed in Braun U.S. Pat. No. 3,861,222. Even in the two-stage embodiment of the compressor, an inter-cooler, an after-cooler and an inlet fluid (air) filter lie within the above-mentioned outline.Type: GrantFiled: July 5, 1977Date of Patent: September 5, 1978Inventor: Anton Braun
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Patent number: 4105372Abstract: According to the present invention, fluid rotary machines including a turbo-compressor, turbo-desiccator, turbo-refrigerator, turbo-generator and the like are of such an arrangement that supporting shafts corresponding to impellers in number and a gear train changing R.P.M. of said supporting shafts to the optimum R.P.M. of the impellers mounted on said supporting shafts are provided, so that the respective impellers can operate at the optimum R.P.M. individually.Type: GrantFiled: January 20, 1976Date of Patent: August 8, 1978Assignee: Hitachi, Ltd.Inventors: Haruo Mishina, Kazuhiro Sunobe, Kunio Fujie
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Patent number: 4097202Abstract: An auxiliary compressor assembly for a conventional compressor having an auxiliary cylinder adapted to be releasably mounted with the conventional compressor and a head adapted to be removably mounted the auxiliary cylinder.Type: GrantFiled: June 21, 1976Date of Patent: June 27, 1978Inventor: Billy Frank Price
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Patent number: 4087197Abstract: The compressor, as evidenced in the several embodiments presented herein, comprises, in its essentials, a self-contained gear housing which, centrally thereof, receives a power input shaft for driving a bull gear. The bull gear drives either one or a plurality of other gears which, in turn, are coupled to one or a complementary plurality of gas compressing impellers. Integral with the outer wall of one side of the gear housing is defined one or a same plurality of gas handling structures within which the impeller(s) are confined. The gas handling structures comprise inlet pipes, compression chambers, diffusers and open-ended plenum chambers. According to the requirements of the user, domed enclosures are replaceably bolted to the gas handling structure either directly, or through intervening inter- or after-cooler heat exchangers, and with inter-stage ducting, to define of the gas compressor either a single compressing stage, a plurality of independent stages, or successive, series-coupled compressing stages.Type: GrantFiled: September 7, 1976Date of Patent: May 2, 1978Assignee: Ingersoll-Rand CompanyInventor: Ronald L. Haugen
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Patent number: 4077743Abstract: Compression machinery including a low pressure stage, a high pressure stage and a single aftercooler, further includes a bypass path through which fluid discharged from the low pressure stage is directed about the high pressure stage. The bypass path includes the aftercooler. Upon activation of the high pressure stage, a portion of the fluid flowing through the bypass path is diverted to the suction side of the high pressure stage. As a result of continued operation of the high pressure stage, the flow of fluid through the bypass path is decreased and the flow of fluid through the high pressure stage is increased.Type: GrantFiled: January 17, 1977Date of Patent: March 7, 1978Assignee: Carrier CorporationInventors: W. Winston Cochrane, Carl H. Geary, Derek Fothergill
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Patent number: 4059368Abstract: The unloading means comprise unloading ports, and valving therefor, for step-control unloading of a gas compressor. In a first embodiment, the unloading means are provided in side walls of a rotary, positive displacement, gas compressor, and in an alternate embodiment the unloading means are disposed within end walls (of a rotary, positive displacement, gas compressor), and comprehends means for step-control of a plural-stage machine.Type: GrantFiled: June 21, 1976Date of Patent: November 22, 1977Assignee: Ingersoll-Rand CompanyInventors: Wallace A. McGahan, Paul D. Webb, Henry W. Morse
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Patent number: 4028008Abstract: This disclosure pertains to tanks, operated in pairs disposed above the surface of the earth. Each is adapted with sunshading deflectors selectively operated so as to permit the air contained within one such tank to be heated and thus elevated in pressure, by the rays of the sun. A receiving tank, disposed below the surface of the earth, collects the pressurized air and enables the cooling thereof. Condensation occurs while the pressure level within the receiving tank is elevated. A plurality of such units comprising above ground pairs of tanks and below ground cooled receiving tanks are arranged in a series circuit so as to increase the available air pressure at the last receiving tank. A centralized condensate tank collects all the water condensed within each receiving tank and utilizes the elevated air pressure therewithin to discharge the water as required. The air pressure at the last receiving tank may be utilized to drive a motor which in turn can operate an electric generator.Type: GrantFiled: June 18, 1976Date of Patent: June 7, 1977Inventor: Herbert P. Shelton
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Patent number: 3988897Abstract: The output of at least the lowest-pressure turbo-compressor is connected via the intermediate cooler of the compressor group to the input of the turbo-compressor and a throttling means is placed in the conduit between the compressor output and cooler. The looping of the output to the input is effected to diminish the starting and idling power of the compressor group. Charging of the compressed air storage chamber is prevented by a check valve until the pressure of the pressure chamber is exceeded in the compressor group.Type: GrantFiled: September 3, 1975Date of Patent: November 2, 1976Assignee: Sulzer Brothers, LimitedInventor: Rene Strub
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Patent number: 3932064Abstract: A multiple re-entry compressor of the kind set forth in USA Patent application Ser. No. 335,162 now U.S. Pat. No. 3,869,220 is described having inter cooling between successive passes of the rotor blading. A further improvement is described in which variable aperture arcuate segmented flowpaths are provided.Type: GrantFiled: October 8, 1974Date of Patent: January 13, 1976Assignee: The Secretary of State for Defense in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventor: Colin Andrew Millar Tayler