EP0361089A1 - Aggregat mit einem Verdichter mit Antriebsmotor für einen Kälteerzeugungs- oder Wärmepumpenkreisprozess - Google Patents

Aggregat mit einem Verdichter mit Antriebsmotor für einen Kälteerzeugungs- oder Wärmepumpenkreisprozess Download PDF

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Publication number
EP0361089A1
EP0361089A1 EP19890115666 EP89115666A EP0361089A1 EP 0361089 A1 EP0361089 A1 EP 0361089A1 EP 19890115666 EP19890115666 EP 19890115666 EP 89115666 A EP89115666 A EP 89115666A EP 0361089 A1 EP0361089 A1 EP 0361089A1
Authority
EP
European Patent Office
Prior art keywords
motor
compressor
medium
housing
refrigerant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19890115666
Other languages
German (de)
English (en)
French (fr)
Inventor
Clemens Adam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Colenco AG
Original Assignee
Colenco AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Colenco AG filed Critical Colenco AG
Publication of EP0361089A1 publication Critical patent/EP0361089A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F04B39/064—Cooling by a cooling jacket in the pump casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F25B31/006—Cooling of compressor or motor

Definitions

  • the present invention relates to an assembly according to the preamble of claim 1.
  • the interior of the housing is filled with refrigerant vapor, which has the same pressure values as in the evaporator.
  • the refrigerant to be compressed cools both their drive motor and the crankcase of the compressor and is therefore heated before it enters the compressor cylinder.
  • the associated increase in volume of the refrigerant vapor correspondingly reduces the amount of coolant delivered per piston stroke.
  • the object of the present invention is to improve an assembly of the type mentioned at the outset using the simplest means in such a way that the losses can be reduced in the same way as in the case of open assemblies.
  • the solution must be particularly suitable for mass production.
  • Fig. 1 shows the device for a refrigeration or heat pump cycle. This removes heat from a medium A by evaporating refrigerant (at a level of lower temperature and pressure) in an evaporator 1.
  • the cold steam is drawn in by a compressor 2 and compressed to a higher pressure and temperature level.
  • the mechanical work required for this is performed by a motor 3 (which drives the compressor 2).
  • a condenser heat exchanger 4 the steam is condensed at higher pressure and higher temperature. This transfers the amount of heat withdrawn from the medium A, increased by the proportion of the mechanical work supplied, in the form of condensation energy to a medium B.
  • the liquid refrigerant flowing back from the condenser heat exchanger 4 to the evaporator 1 passes through an expansion valve 5 present in the return and relaxes back to the low pressure level in evaporator 1 and evaporated.
  • the compressor 2 and the motor 3 are usually enclosed together in a gas-tight housing 6 (FIG. 2), the interior of which is under the same vapor pressure as the evaporator 1.
  • the Compressor 2 lies above the motor 3 with respect to the vertical.
  • a shaft 9 is rotatably mounted, on the lower part of which the rotor 10 of the motor 3 is non-rotatably mounted.
  • the output-side shaft part serving to drive the compressor 2 is provided with an eccentric pin 13 on which the connecting rods 16 of the compressor pistons 14 are mounted.
  • the pistons 14 suck in the refrigerant gas at a low temperature and pressure level from the evaporator 1 through a line 17 and compress it to a higher temperature and pressure level and expel it into the line 18.
  • the refrigerant vapor which is at a low temperature and pressure level, fills the entire space between the compressor 2 and the housing 6.
  • the housing 6 When used as a heat pump, the housing 6 is provided with a double wall 19 in the area of the motor 3 and a coil 20 is inserted into the intermediate space in such a way that it forms a helical channel 23 in the double wall from the inlet connection 21 to the outlet connection 22. Between the housing 6 and the stator 11 there is a space sufficient for the flow of a medium.
  • the interior of the housing is filled with a low-viscosity, refrigerant-compatible lubricant up to a level line 24, so that the motor is completely immersed in the lubricant bath.
  • the crankcase with the gas channels can also be constructed in such a way that not only the engine 3 but also the crankcase is protected from contact with the inflowing (cold suction gas). With the engine 3 running, the lubricant circulates as a result of the gravity and centrifugal force of the engine is transferred to the lubricant, which for the most part transports and delivers it to the housing wall 6. From the housing wall 6, it is either directly to the environment, that is to say the medium B, or indirectly to the medium supplied through the inlet connector 21 B is discharged and discharged through the outlet port 22.
  • the described embodiment with a helical channel 23 is suitable for dissipating the engine heat, but if the device is used to cool a refrigerator, the heat is directly passed on to the Environment, that is, the medium B. In this case ent falls the double wall 19 and the outside of the housing serves as a cooling surface. The effect increases if the cooling fins are attached to the outside of the housing 6 and the medium B (that is, the ambient air of the refrigerator) flows around them.
  • FIG. 3 The advantage of the present invention is illustrated in FIG. 3.
  • the enthalpy in kJ / kg is plotted on the abscissa and the pressure is plotted on the ordinate (in log. Scale).
  • a refrigerant pressure P1 prevails at the inlet of the evaporator 1.
  • the enthalpy of the refrigerant is E1.
  • E1 By removing heat from medium A, the enthalpy of the refrigerant increases from E1 to E2 until it is in the form of saturated steam at a constant pressure.
  • the enthalpy of the refrigerant is further increased to the value E3 by the engine waste heat.
  • the mechanical energy supplied to the refrigerant in the compressor increases its enthalpy (E4) and pressure (P2).
  • the condenser heat exchanger 4 heat is extracted from the vaporous refrigerant by the medium B at a constant pressure, so that the refrigerant condenses and its enthalpy at the outlet from the condenser heat exchanger 4 again reaches the value E1. After the refrigerant has passed through the expansion valve 5, the refrigerant relaxes while the enthalpy E1 remains the same and partially evaporates, its pressure falling again to the value P1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP19890115666 1988-09-29 1989-08-25 Aggregat mit einem Verdichter mit Antriebsmotor für einen Kälteerzeugungs- oder Wärmepumpenkreisprozess Withdrawn EP0361089A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3630/88 1988-09-29
CH363088A CH676035A5 (enrdf_load_stackoverflow) 1988-09-29 1988-09-29

Publications (1)

Publication Number Publication Date
EP0361089A1 true EP0361089A1 (de) 1990-04-04

Family

ID=4260111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890115666 Withdrawn EP0361089A1 (de) 1988-09-29 1989-08-25 Aggregat mit einem Verdichter mit Antriebsmotor für einen Kälteerzeugungs- oder Wärmepumpenkreisprozess

Country Status (3)

Country Link
EP (1) EP0361089A1 (enrdf_load_stackoverflow)
JP (1) JPH02146467A (enrdf_load_stackoverflow)
CH (1) CH676035A5 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2989036A1 (fr) * 2012-04-06 2013-10-11 Valeo Systemes Thermiques Installation de chauffage, ventilation et/ou climatisation pour un habitacle de vehicule.
CN111502877A (zh) * 2020-04-21 2020-08-07 四川航天中天动力装备有限责任公司 一种微型涡喷发动电动燃油泵折回式散热结构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020117899B4 (de) 2020-07-07 2022-11-17 SPH Sustainable Process Heat GmbH Hochtemperaturwärmepumpe

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE601453C (de) * 1931-02-18 1934-08-16 Siemens Schuckertwerke Akt Ges Kompressionskaeltemaschine
US2978881A (en) * 1960-02-02 1961-04-11 Westinghouse Electric Corp Air conditioning apparatus
US4248056A (en) * 1978-05-18 1981-02-03 379235 Ontario Ltd. Heat reclaimer for a heat pump
FR2474149A1 (fr) * 1980-01-22 1981-07-24 Sdecc Dispositif de recuperation des calories dissipees par un compresseur d'une pompe a chaleur
DE3002776A1 (de) * 1980-01-26 1981-08-13 Energiewirtschaftliche Forschungs- und Entwicklungsgesellschaft mbH Günter Schlagowski, 2800 Bremen Heizungsanlage mit waermepumpe
CH627538A5 (en) * 1978-09-27 1982-01-15 Sulzer Ag Heating installation with a heat pump
FR2487487A1 (fr) * 1980-07-25 1982-01-29 Unite Hermetique Dispositif d'augmentation du coefficient de performance d'une pompe a chaleur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE601453C (de) * 1931-02-18 1934-08-16 Siemens Schuckertwerke Akt Ges Kompressionskaeltemaschine
US2978881A (en) * 1960-02-02 1961-04-11 Westinghouse Electric Corp Air conditioning apparatus
US4248056A (en) * 1978-05-18 1981-02-03 379235 Ontario Ltd. Heat reclaimer for a heat pump
CH627538A5 (en) * 1978-09-27 1982-01-15 Sulzer Ag Heating installation with a heat pump
FR2474149A1 (fr) * 1980-01-22 1981-07-24 Sdecc Dispositif de recuperation des calories dissipees par un compresseur d'une pompe a chaleur
DE3002776A1 (de) * 1980-01-26 1981-08-13 Energiewirtschaftliche Forschungs- und Entwicklungsgesellschaft mbH Günter Schlagowski, 2800 Bremen Heizungsanlage mit waermepumpe
FR2487487A1 (fr) * 1980-07-25 1982-01-29 Unite Hermetique Dispositif d'augmentation du coefficient de performance d'une pompe a chaleur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2989036A1 (fr) * 2012-04-06 2013-10-11 Valeo Systemes Thermiques Installation de chauffage, ventilation et/ou climatisation pour un habitacle de vehicule.
CN111502877A (zh) * 2020-04-21 2020-08-07 四川航天中天动力装备有限责任公司 一种微型涡喷发动电动燃油泵折回式散热结构

Also Published As

Publication number Publication date
CH676035A5 (enrdf_load_stackoverflow) 1990-11-30
JPH02146467A (ja) 1990-06-05

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