Compressor cooling unit, in particular for air-conditioning the interior of motor vehicles

The invention concerns a compressor cooling unit, in particular for air-conditioning the interior of Kraftfahrzengen, also around a being certain Kurbehvelle rotating compressor. Well-known compressor cooling units use propelled compressors from the vehicle engine, which by Rohrbzw. Hose lines on the one hand with the condenser arranged before the vehicle radiator and are on the other hand in the same way with in the passenger compartment evaporator present connected. A further line leading from the condenser to the evaporator brings the refrigerant liquefied in the condenser to the relief valve arranged in the passenger compartment at the evaporator. This arrangement of the construction units long Rohrund hose lines with a multiplicity of gas densities pipe connections for the refrigerant cycle, needed for an air conditioning system, but does not required only require beyond that also a localdifferent accommodation of the compressor to be able to begin the condenser as well as the evaporator, whereby the condenser is arranged before the vehicle radiator mostly, in order to its Kühhmg beside the radiator fan also the wind. The invention aims at now the meaningful summarizing from so far spatially separated parts of the air conditioning system, by which the disadvantages of the well-known arrangement is avoided and a favorable space utilization is reached. For this purpose it is according to invention intended with a Kor_qpressor-Kälteaggregat of the kind initially specified that the condenser with the compressor rotates around the crankshaft and a separate blower anfweisende evaporators is separately arranged hievon. By this training, with the compressor and condenser combined into a compact structural unit are to be planned, the accommodation of the aggregate in the engine compartment or in other place of the vehicle substantially are facilitated and at the same time the possibility created, the evaporator at any, than favorably recognized place. In addition, the aggregate is arranged independently of the usual AnfsteUungsort of the condenser before the vehicle radiator and it exists also the possibility of training the condenser according to kind of a blower runner so that also an independence from any foreign ventilation, thus by the radiator fan or a special electrical blower, is reached. There is well-known also around a stationary crankshaft rotating cooling units, with which both the compressor and both heat exchangers, thus condenser and evaporators, with which compressor cylinders rotate. Such an arrangement is however not everywhere applicable, because once the two rotary heat exchangers in constructional unit with the compressor relatively much place to stress and on the other hand, because the mechanical handling capacity likewise rigidly of the cooling blower connected with the evaporator is not variable and cannot therefore the changing requirements of a thermalstatically regulated evaporator ventilation not correspond. In contrast to this not only the reduced space requirement of the aggregate, but also the advantage that the desirable differentiated ventilation of the evaporator can take place via a multi-level fan, arise that, from thermostats steered as a result of the invention, which evaporator capacity permits to change. This evaporator can be arranged independently of the place of assembly of the rotary compressor condenser aggregate in usual way in or in the proximity of the Fahrgastranmes, with which also longer kaltluft£ührende, thermally insulated hoses are avoided within the engine compartment. To mention as further Vorzng according to invention building method is that the spatial execution of the condenser on the projection of a usual surface condenser under utilization permits also for the condenser the accommodation of the three-way surface to the third dimension demanded anyway by the compressor and that in connection with the possible training of the condenser ribs as shovels of a blower runner, to which referred space requirement a particularly effective heat exchange results. In order to ensure and keep around an axially symmetrical a small diameter of the compact, rotary compressor condenser aggregate consolidated, the compressor is trained in actually well-known way as double acting a cylinder compressor in accordance with a preferential Ansgestaltung of the Erflndnng, whose is both symmetrically arranged valve plates in the same distance from the crankshaft axle arranged and of same Gesvicht. Also that likewise doubly working pistons is to be symmetrically implemented thereby and turn with the cylinder around a likewise symmetrically trained crank slot. The condenser rotating designed as bodies of revolution with the compressor is fed of the print pages of the two cylinder heads and supplies then liquefied cooling center] by the rotary camp pipe of the compressor through the stationary crankshaft, which leads back the condensate by a longitudinal drilling to the evaporator and by another the warm-loaded gas of the evaporator into the compressor. Such a axially symmetrical double piston A CYLINDER COMPRESSOr, which turns together with the firmly connected walzenförmigen condenser around the own crankshaft axle, stressed practically no more place as a standard compressor, represents however due to the self ventilation than Gebläseläu£er a complete condenser aggregate to trained condenser. The rotary aggregate tubularly enclosing a guard provided with louvers serves both the attachment of the complete unit in the vehicle and the admission of the torque. Further details and advantages of the erfindnngsgemäßen compressor cooling unit result from the following description on the basis a Aus£'ührungsbeispieles represented in the designs. Fig.1 a profile shows by a compressor cooling unit after the invention, parallel to the crankshaft, Fig.2 a cut after the line II-II in Fig.1 and Fig.3 a cut after the line [...] III in Fig.1. The out punched sheet metal existing housing coat --1-- the aggregate is together with the likewise punched end plates --2 and 3-- the carrier itself of the compressor condenser aggregate turning in it, that with the drive tap --4-- the cylinder --5-- and the antifriction bearing --6-- in the end plate --3-- it is stored against what the end plate --2-- the stationary crankshaft --7-- in particular against Verdrehtmg secures. Hiezu serve pins --8--, those on the one hand into appropriate Bohrtmgen of the case --9-- and on the other hand into corresponding lateral reaming of the crankshaft --7-- intervene. The case --9--- is with the end plate --2--, for example by soldering, firmly connected and in all other respects becomes by means of the union nut --10-- under span of the poetry --11-- firmly toward the end of the crankshaft --7-- pulled, with which at the same time the valve body --12-- is gas-tight fastened. The stationary crankshaft --7-- the antifriction bearings possess --13 and 14--, around soft itself the compressor camp pipe --15-- and with this bolted cylinders --5-- turn. The turn of the cylinder --5-- follows in this fit in pistons --16--, that itself under switching of the slide ring --17-- around in the middle-transferred crankpin --18-- turns, so that with each full revolution of the cylinder --5-- by the relative motion of the piston --16-- this a double stroke full-leads. The cylinder --5-- is at both opening sides by same valve plates --19-- and valve covers --20-- locked, which suction valves --21-- and pressure control valves --22-- possess. The crankshaft --7-- a longitudinal drilling possesses --23--, which supplies the gas coming from the evaporator to the compressor and a second longitudinal drilling --24--, which takes up the consolidated gas and/or the condensate. The drilling --23-- flows --25-- into the Zylinderinnenranm on which way the drug along lubricating oil by a tube --26-- partly siphoned off and the camps --13 and 14-- as well as the stuffing box --27-- one supplies, just like the crankshaft --7-- and the inner rings of the antifriction bearings is stationary, contrary to the turning compressor camp pipe --15--, at which by means of the union nut --28-- the stuffing box approach disk --29-- under span of the O-ring --30-- is gas-tight fastened. With a further O-ring ---31--- becomes the sealing between the compressor camp pipe --15-- and the cylinder --5-- managed, against what both compressor assemblies by the outer ring of the camp --14-- are centered. The valve covers --20-- possess to the suction valves --21…. prominent Gaskanäle --32--, those by drillings in the valve plates --19-- and by the ring channel --33-- beldseitig with one another as well as are connected with the cylinder space, in which the longitudinal drilling --23-- the crankshaft --7-- --25-- leads into. The valve covers continue to possess the Gaskanäle continuing from the pressure control valves --34--, those by the pipes --35-- with the condenser tubes --36-- , those are connected by means of the condenser ribs --37-- held together and by these, that the KühlJ.uft is formed to a blower wheel into its inside by in the end plates --2 and 3-- intended openings --38 and 39-- sucks in. At the end of the condenser --40-- withdrawing condensate becomes by the Rohrverbiudung --41-- and the drilling --42-- the enular groove --43-- at the standing crankshaft --7-- supplied, where it into the longitudinal drilling --24-- arrived. To the prevention of a pressure balance between the crankshaft --7-- and the compressor camp pipe --15-- are for example the sealing rings --44-- planned, against what the drillings --45-- the entrance and pressure balance by centrifugal energy the camps ---13 and 14-- supplied lubricating oil serve, which is added similarly to the well-known two-stroke engines the refrigerant in a certain relationship im übrigen. Under span of the poetry --11-- at the crankshaft --7-- fastened valve body --12-- stands by the drilling --46-- with the longitudinal drilling --24-- in the crankshaft --7-- in connection, against what their longitudinal drilling --23-- with the valve body drilling --47-- is connected. Both Ansehlußbohrungen serve the connection of the Kompressor-Kondensat0raggregats by Rohrbzw. Ski also lines with a commercial evaporator, against what Evakuierungsund of inflation valves --48 and 49-- serve the start-up of the aggregate. The air duct --50-- permits the Heranf'ührung by outside air with ambient temperature if the aggregate in a zone warmed up air is arranged, for example behind the vehicle radiator or in engine proximity. The illustrated remark example can be formed out while maintaining the Erf'mdungsgedankens also deviating, whereby it is only substantial that the Kompressorzyllnder turning around a being certain crankshaft and the Doppelkolben the refrigerant consolidated arranged therein by the compressor can supply themselves the driving condenser and convey the condensate of the stationary crankshaft for forwarding to the evaporator.