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    • 5. 发明授权
    • Air cycle refrigeration system
    • 空气循环制冷系统
    • US4840036A
    • 1989-06-20
    • US58927
    • 1987-06-05
    • Wilbur A. Spraker, Jr.
    • Wilbur A. Spraker, Jr.
    • B64D13/06F24F3/04F25B9/00
    • F24F3/04B64D13/06F25B9/004Y02T50/56
    • An air cycle refrigeration system which comprises an air-to-air heat exchanger, first and second turbochargers, and first and second ejector pumps. The system air to be cooled is passed through the heat exchanger and into a first turbine, cooling upon expansion and driving the coupled first compressor. The system air passes from the first turbine to the second turbine, again cooling upon expansion and driving the coupled second compressor. Each compressor is connected with the coolant air outlet of the heat exchanger and draws the coolant air therefrom. The high pressure air produced from the outlets of the compressors are used to drive corresponding ejector pumps. The ejector pumps are connected with the coolant air outlet of the heat exchanger and draw additional air therefrom. The total draw of coolant air through the heat exchanger therefore comprises the total of the inlet air to the two compressors and the induced air drawn from the heat exchanger by the two ejector pumps.
    • 一种空气循环制冷系统,包括空气 - 空气热交换器,第一和第二涡轮增压器以及第一和第二喷射泵。 待冷却的系统空气通过热交换器并进入第一涡轮机,在膨胀时冷却并驱动联接的第一压缩机。 系统空气从第一涡轮传递到第二涡轮机,再次在膨胀时冷却并驱动联接的第二压缩机。 每个压缩机与热交换器的冷却剂空气出口连接并从其中抽出冷却剂空气。 从压缩机的出口产生的高压空气用于驱动相应的喷射泵。 喷射泵与热交换器的冷却剂空气出口连接,并从其中吸取额外的空气。 因此,通过热交换器的冷却剂空气的总吸入量包括两个压缩机的总入口空气和由两个喷射泵从热交换器抽出的诱导空气。
    • 6. 发明授权
    • Method for air-conditioning a plurality of rooms
    • 空调多个房间的方法
    • US3360031A
    • 1967-12-26
    • US42288264
    • 1964-12-28
    • SVENSKA FLAEKTFABRIKEN AB
    • SIGVARD MATTSLARS-OWE GRUDEBORN
    • F24F3/04F24F3/06F24F11/08
    • F24F3/04F24F3/06F24F11/30
    • 1,038,020. Air conditioning; heating and cooling buildings. SVENSKA FLAKTFABRIKEN A.B. Dec. 21, 1964, No. 51927/64. Headings F4V and F4U. In an induction type air conditioning system secondary air is treated in the heat exchangers mounted in the induction units before mixing with primary air and the liquid medium supplied to these heat exchangers is maintained at a temperature common for the whole plant and lower than the temperature of the secondary air, the temperature of the primary air being regulated in dependence on the outdoor conditions. In Fig. 4, 1 designates the heat exchangers within the induction units, 2 a heat exchanger forming part of the central air conditioning plant and 3 pipe lines forming a closed circuit between heat exchangers 1 and 2. 4 and 6 are circulation pumps, pump 6 maintaining through a by-pass line 7 a constant liquid flow through the heat exchanger 2 regardless of the number of heat exchangers 1 being used. During winter, heat is supplied by heated primary air, but in order to eliminate simultaneous cooling by the heat exchangers 1, the heated medium is passed to heat exchanger 2 through which the primary air 5 is taken in. In order to prevent moisture forming on heat exchangers 1 the medium is maintained at a temperature which is above the dew point temperature of the room air by introducing into the circuit a quantity of heated medium from a separate heat source at 8 and withdrawing a corresponding quantity of the medium at 9. In order to maintain, during fluctuations of outdoor air temperature, the medium at a desired temperature quantities of warm or cold medium are added to the circuit, the warm medium added as previously described and the cold medium added at 12 with a corresponding quantity discharged at 13. When the ventilating air 5 is too hot to cool the medium in heat exchanger 2, the medium is maintained at the desired temperature solely by the cold medium supplied at 12, circuit 3a, Fig. 5. If in this case, should the ventilating air also require cooling, a separate cold medium supply line 19 is used regulated by valve 20 which is governed by thermostat 22 located in the air flow 5, the cold medium passing straight to the heat exchanger 2 around circuit 3b. Any warm or cold medium added to the circuit is always added to the circuit immediately after the corresponding quantity has been withdrawn.
    • 9. 发明授权
    • Air conditioning system
    • US3354943A
    • 1967-11-28
    • US43889165
    • 1965-03-11
    • MCFARLAN ALDEN I
    • MCFARLAN ALDEN I
    • F24F3/04F24F3/044F24F3/048F24F3/10F24F5/00F24F7/08F24F11/76
    • F24F7/08F24F3/04F24F3/0444F24F3/048F24F3/10F24F5/00F24F11/76
    • 1,134,513. Heating and cooling buildings. A. I. McFARLAN. 9 March, 1966 [11 March, 1965], No. 10451/66. Headings F4U and F4V. In a system for air conditioning large buildings which usually require cooling of the interior during the whole of the year and heating or cooling of the periphery according to season, outside air is mixed with recirculated air and excess heat from the interior is used to heat the peripheral parts of the building during winter. Provision is made to supply a higher proportion of fresh air to conference rooms and 100% fresh air to the kitchens. Fig. 1 shows a chilled water circuit for cooling outside air and recirculated air in summer and to cool recirculated air in winter. Three refrigeration units 5, 6, 7 are connected in series and chilled water flows to an air treating unit 9 for recirculated air and to an air treating unit 10 for outside air. Chilled water is also supplied by a line 11 to units 12 in the peripheral part of the building. A valve 20 enables the water from unit 9 to return direct to a pump 16 or to be directed through unit 10 where the heat absorbed from the recirculating unit 9 is used to heat fresh air passing through the unit 10. A thermostatic valve 17 regulates the flow through unit 10 and a by-pass 18 back to the pump 16. In a modification (Figs. 2 and 3) a hot water system is added comprising a compressor (P), evaporator-water-chiller (E), condenser (C), and expansion valve (V). Thermostatically controlled valves (26, 27, 28) control the flow of cold and hot water or a mixture thereof and auxiliary heaters (29, 29a) are provided. Unused heat is dissipated by a cooling tower 31. The units 9, 10 and 12 may be controlled by adjusting the quantity of water supplied but preferably control is effected by modifying the temperature with a constant volume and rate of flow by use of valves (26, 27, 28). In a further modification (Fig. 4), for cool climates, an additional loop circuit (44) is provided and includes a second pump (32). Water returning from units 12 may be directed from the second pump (32) through the loop circuit when a first valve (44V) is open, and a second valve (45V) is closed, or may be directed to both pumps 16, (32) by opening the second valve (45V) and closing the first valve (44V). Air treating units in the periphery of the building may be air induction units (Fig. 9, not shown) or fan coil units (Fig. 10, not shown). Air outlets into the spaces to be controlled may be ceiling diffusers (Fig. 11, not shown) or pivoted vanes (Figs. 12 and 13, not shown) all of which are controlled by a thermal responsive device.
    • 10. 发明授权
    • Air conditioning system
    • 空调系统
    • US3122201A
    • 1964-02-25
    • US2698660
    • 1960-05-05
    • CARRIER CORP
    • ASHLEY CARLYLE MCOLEMAN MILTON H
    • F24F1/00F24F1/01F24F3/00F24F3/04F24F11/00F24F11/047F24F11/06F24F13/26
    • F24F13/26F24F1/01F24F3/04F24F11/00F24F11/30F24F11/75F24F11/83F24F2001/0066F24F2003/003F24F2003/005F24F2110/10
    • 972,077. Air conditioning. CARRIER CORPORATION. Feb. 9, 1961 [May 5, 1960], No. 4926/61. Heading F4V. [Also in Division G3] An induction unit for an air conditioning system is supplied with primary conditioned air which is discharged through nozzles to induce secondary room air over a heat exchanger and/or through a by-pass channel which is damper controlled in accordance with the secondary air temperature. Primary air is supplied to a plenum chamber 26 whence it flows through a damper controlled aperture 29 to discharge nozzles 28, separate secondary streams of air being induced to flow through an inlet 37 at the base of the unit and through a further inlet 71 to a control 68 at the side: of the unit. A heat exchanger 32 is mounted in the lower part of the unit and is by-passed by a passage 33 formed by a wall 34 the upper part 40 of which is hinged at 41 to form a damper which is biased towards a position closing the passage by a counter-weight 43. The plenum chamber 26 communicates via a line 51, filter 52, pressure equalizer 54 and an orifice 57 with lines 59 and 60 which lead to a bellows 39 attached to the damper plate-40 and a changeover valve 61 respectively. The valve 61 is controlled by. a thermostat 62 to connect line 60 to either line 66 or line 67 depending on whether heating or cooling medium is being circulated through the heat exchanger 32 and bimetallic elements 74 and 73 are mounted at the ends of the respective lines. When the line in use is covered by the appropriate element the pressure in the bellows 39 rises and the damper plate 40 is moved to open the by-pass passage 33; conversely air is bled from the pipe when the element 1 uncovers its end in accordance with the temperature of the secondary air induced through the inlet 71 and the bellows pressure drops to close passage 33. In the complete air conditioning system units of the above type are positioned in various rooms of a building and are supplied with primary air from a central conditioning unit comprising a filter, pre-cooling coil, humidifier, a heating coil and a cooling coil. Specification 641,712 is referred to.