DE2024447A1 - Patent system, East Berlin WP140429 Heat dissipation of a refrigerant compressor - Google Patents

Description

VEB Mο na at or

Large household appliance combine Sohwarsenberg Company BKK Seharfenstein

.Heat dissipation of a refrigerant compressor *

The invention relates to the heat dissipation of a cold * mitte! verdichtera to the environment, especially at Hermetically encapsulated and semi-Hermetic refrigerants with * telverdiohtern

Bs is known that for the removal of the capsule ent "stationary heat loss" the duroh electrical losses of the motor, friction of the Q-conducting parts and compaction caused the refrigerant vapor "the" ur Sohmie "· tion used Kältemasohinenöl and the sucked cold · λ Oil vapor is used · This principle is generally referred to as suction gas cooling · Various measures have already been proposed to improve the principle of suction gas cooling, see b. B. by suitable design of the IUfder cast on the rotor an erawungeae flow of the suction gate durok

BATH ORIGINAL

009851/1327

20244Λ7

causes the gap between the eotor and stator * Furthermore an improvement was achieved by the fact that the suction line in the capsule darart was arranged that the cold suction gases when entering the capsule the hot ones Touching yerdiohter parts

! «Another measure to lower the temperature level inside the compressor capsule was thereby achieved »that Via the crank pin that is not required for lubrication « Part of the refrigeration machine oil is thrown off, whichever way is deposited on the capsule wall while cooling and from there got back into the oil sump «

These listed measures have for the down · "reduction dea TemperaturniYeaus within the capsule daa oil and daa Sauggäa cold together" Prior Teeimik listed the lack liable that luat by the related heating dea Sauggaaea "in 7 Series" at ₉ enters at cooling capacity "

Purposes of the invention are to cool the heating to prevent gases

The invention is based on the task of sngrun & e »daroh ein® beaeorte guided tour of the suction gas lake «ine Ä1> eonkuii £ deg turnireat »inr.srhalß d <sr capsule sä <i? F« ialiixi tmi damü;

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Cooling capacity dee Yordlohtere on

009851/1327

According to the invention, this is because there is a pressure in the compressor capsule that is greater than the suction pressure and less than the liquefaction pressure, with the suction line being integrated directly into the parts of the meritorious device carrying suction gas or into upstream suction mufflers through a between piston and cylinder located gap, a part of the compressed refrigerant into the capsular space "· · rüok at each compression stroke order a spread of refrigeration oils in · i

To prevent the system, the entrained oil is eliminated with each compression stroke by means of a valve located in the cylinder warm pressurized gas is counteracted by the fact that all Parts that carry suction gas in the evaporator capsule are made of heat-insulating materials or are coated with heat-insulating materials * The technical and economic effects of the invention consist in the fact that a significant reduction in the temperature level inside the capsule of the compressor blocke3, especially the electrical components in the capsule, achieve a longer service life, which means the entire service life of the compressor increases «

The invention is explained in more detail using an exemplary embodiment. The accompanying drawing shows a sohemati see illustration of a hermetically sealed refrigerant «· Compressor according to the invention

ORIGiNAI. - 4 "

0 0 9 8 51/13 2 7

a » 4 *

In the compressor capsule 1, which is closed by a De ok el 2, there is the Verdichterblook 3 · Die Shaft 4 is driven by a motor which is essentially as the stator 5 and the eotor 6 consists, driven «The Movement of the shaft 4 is transmitted to the piston 9 via the crank pin 7 and the sliding block 3 · The piston 9 leads in the cylinder 10, which passes through the valve plate 11 and the cylinder head 12 is closed, a stroke movement from "Through the suction line 13" which is in the cylinder head 12 di · * is directly integrated, the cold suction gas flows directly into the cylinder 10 · The cold suction gas is in the cylinder 10 compresses and flows through the pressure line 14 into the capacitor not shown. There is a gap (not shown) between piston 9 and cylinder 10 » duroYes which part of the veiv with each compression stroke sealed refrigerant in the Verdiohterkqp is 1 back «» flows · Builds up after the compressor has started up inside the Verdiohterkapsel 1, which through the lid 2 1st closed, a pressure is created by the refrigerant gas flowing back into the gap between piston 9 and cylinder 10 on, the greater the suction pressure and smaller dom condenser gungsdruok is «After the compressor has been switched off, the pressure in the compressor capsule 1 is above the The gap between the piston 9 and the cylinder 10 is reduced to the balance pressure of the system

0098 51/1327

Claims (2)

Claims ^ Λ Heat dissipation from a refrigerant compressor «to the TJmge« * ^^^ exercise, especially with herraetisoh encapsulated and half «» Hermetic refrigerant diluents, marked with * advised that you should directly tie in the suction line (13) Parts of the Vtrdiohterblookes (3) leading into the suction gas a pressure greater than the suction pressure and less than the condenser is present in the Verdiohterkapsel (1) 2. Refrigerant evaporator according to Claim 1, characterized by «· shows that the suction line (13) is directly in front of tete suction silencer is integrated 3 "Refrigerant compressors according to claims 1 and 2, because a small part of the compressed quay" by means of one between piston (9) and cylinder (10) located gap flows back into the capillary space 4 · Kaltemittelverdiohter NaOH to claim 1 and 2, characterized dadureh that at each compression stroke with overall "% · KUltemasohinenöl via a valve disposed in the cylinder (10) in the valve Vtrdiohterkapsel (1) from flowing back · 5 · refrigerant compressors naoh claims 1 to 4i daduroh ge · kennaeiohnet that all files leading to suction gas in the Yer · » dloater capsule (1) made of heat-insulating materials be or old heat-insulating materials are. BATH ORIGINAL 009851/1327