Topic
Gas compressor
About: Gas compressor is a research topic. Over the lifetime, 91817 publications have been published within this topic receiving 552209 citations.
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11 Dec 1995TL;DR: In this article, the compressor is disconnected from the crankshaft by a free-wheel mechanism by using a free wheel mechanism, and the preliminary air conditioning of the vehicle when parked is provided without a special electric motor for driving the compressor.
Abstract: The compressor (3) of the refrigerating fluid circuit is driven by the thermal engine (1) of the vehicle when the latter is functioning and, when parked, by the alternator (2). The latter, fed with three-phase current from an auxiliary battery (10) so as to function as a motor, and the compressor (3), are then disconnected from the crankshaft (20) by a free-wheel mechanism (7). The preliminary air conditioning of the vehicle when parked is thus provided without a special electric motor for driving the compressor, with reduced expenditure of energy by virtue of the feeding of the alternator with three-phase current, and without any risk of exhaustion of the main battery by virtue of the auxiliary battery (10).
74 citations
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02 Aug 2001
TL;DR: A component gas concentrator includes an air compressor, an air-tight first container containing a molecular sieve bed, the first container in fluid communication with the compressor through a first gas conduit, and an airtight second container with a gas flow controller such as PLC controls actuation of valves mounted to the gas conduits.
Abstract: A component gas concentrator includes an air compressor, an air-tight first container containing a molecular sieve bed, the first container in fluid communication with the compressor through a first gas conduit, and an air-tight second container in fluid communication with the first container through a second gas conduit A gas flow controller such as PLC controls actuation of valves mounted to the gas conduits
74 citations
01 Nov 1971
TL;DR: In this paper, an axial flow compressor rotor was tested at design speed with six different casing treatments across the rotor tip, and radial surveys of pressure, temperature, and flow angle were taken at the rotor inlet and outlet.
Abstract: An axial flow compressor rotor was tested at design speed with six different casing treatments across the rotor tip. Radial surveys of pressure, temperature, and flow angle were taken at the rotor inlet and outlet. Surveys were taken at several weight flows for each treatment. All the casings treatments decreased the weight flow at stall over that for the solid casing. Radial surveys indicate that the performance over the entire radial span of the blade is affected by the treatment across the rotor tip.
74 citations
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28 May 2014TL;DR: In this paper, a two-shaft gas turbine with high operability is provided for rotational driving and power extraction by delivering electric power between the electric equipment and the motor/generator.
Abstract: A two-shaft gas turbine having high operability is provided. The two-shaft gas turbine (17) includes: a gas generator (15) having a compressor (1), a combustor (20) and a high pressure turbine (2); a power turbine (16) having a low pressure turbine (3); a load (5) connected to the power turbine (16); a motor/generator (6) capable of rotatably driving the gas generator (15) and capable of extracting power from the gas generator (15); electric equipment controlling the rotational driving and the power extraction by delivering electric power between the electric equipment and the motor/generator (6); and a control device controlling the electric equipment, wherein the combustor (20) has a plurality of combustion regions (51a-51d) to which a fuel is supplied through fuel adjustment means which are independent from each other, and the control device controls a delivery amount of the electric power delivered by the electric equipment corresponding to the number of combustion regions (51a-51d) to which the fuel is supplied.
74 citations
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30 Dec 2009
TL;DR: In this paper, the authors proposed a multicycle power generation thermodynamic system, where a low-boiling medium is used as a cold source for condensing water vapour, and the medium does work in a second cycle expansion unit to generate power and reduce temperature.
Abstract: The invention relates to a multicycle power generation thermodynamic system. A first cycle is an improved Rankine cycle. A low-boiling medium is used as a cold source for condensing water vapour which accomplishes work doing into water, and the source of cold energy of the low-boiling medium is that the medium does work in a second cycle expansion unit to generate power and reduce temperature. The second cycle comprises: gasification evaporation, expansion work doing and temperature reduction, driving an electric generator to generate power; and after doing work, vapour is directly turned into liquid or is turned into liquid by a compressor from the vapour state, or achieves the vapour state with minimum value of compression work; the vapour is pressurized to enter an evaporator of the second cycle, the absorbed vapour is condensed, the latent heat is vaporized, and finally the vapour enters a second medium expansion machine to do work. The water vapour in the Rankine cycle condenser, which accomplishes work doing, transfers the latent heat to a second medium and then is condensed into water. When the second cycle can not completely convert the latent heat of the water vapour which accomplishes work doing into power, a third medium is used for a third cycle; the principle thereof is identical with the second cycle, but the third medium is a substance with lower boiling point. The invention can increase the thermal efficiency of a condensing type or an extracting-and-condensing style thermal power generation system, namely the Rankine cycle.
74 citations