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
  • F04B39/0027—Pulsation and noise damping means
  • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
  • F04B39/0072—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes characterised by assembly or mounting
• • 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
  • F04B39/02—Lubrication
  • F04B39/0223—Lubrication characterised by the compressor type
  • F04B39/023—Hermetic compressors
  • F04B39/0261—Hermetic compressors with an auxiliary oil pump
• • 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
  • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
  • F04B39/121—Casings

Definitions

• I'invention s e refers to a compressor for domestic refrigerators, completely encapsulated, and which operates freon.
• the compressor for domestic refrigerators is provided with a hollow body, so arranged that a circular hole therein, and by which enters the cylinder block the working fluid is arranged coaxia Lement with a tube by which are brought from the evaporator the vspeurs of this one, by a tripolar terminal, for the supply of electric energy, diametrically opposite to the tube, with springs mounted on the bottom of the carcass lower and with an oil pump which is fixed elastically in the shaft, by a ring which is mounted in a frustoconical circular channel.
• the compressor leads to an increase in the storage space in the refrigeration cabinet, simultaneously with the increase in refrigeration efficiency and the decrease in the power absorbed from the network.
• I'invention refers to a compressor for domestic refrigerator, completely encapsulated, which operates freon.
• Compressors for ospsule domestic refrigerators, operating on freon which are mainly constituted by a carcass, inside which an electric motor, by means of ur arhre causes an eccentric which, at in turn, drives a piston inside a cylindrical block.
• the aspiration of freon, which constitutes the work agent. is carried out by a pipe which enters a body which supports the whole ertier.
• the grease is obtained using a po mpe driven by a tree, and the attachment of the assembly inside the carcass is read by springs arranged redial or perpendicular to the horizontal plane. and which is fixed by handles mounted on corcasse and on the set in question.
• the supply of electrical energy is carried out by a Tripolaine supplier. located near the suction pipe through which the evaporator's work agent circulates.
• Another disadvantage is the fact that the elements by which one ensures the aspiration of the agent of awakening in the cylinder block, the mode of hooking, the large clearances between the moving parts, the relatively large weights of these , lead to a relatively high noise level.
• the object of the invention is to increase the storage space in the refrigeration cabinet, under the conditions of increasing refrigeration efficiency and reducing energy expenditure.
• the problem that this invention will solve is the realization of a cemoresseur for domestic refrigerators, which has reduced dimensions, by the internal reforming of the sub-assemblies, by the provision with a new oil pump and the reprojection of the arkre which this is fixed, thus aue by the use of a suction body of the working agent directly from the evaporator. and in this case the vapsurs are cold, having a reduced specific volume, and the oil pump operates safely and has high pumping efficiency.
• the compressor for domestic refrigerators, with an electric motor which, by a shaft and for an eccentric.
• the comeressor is formed of a carcass A in which settate: a suction body B, and a pump C, with an electric motor 1 and a cylinder block.
• the carcass A is formed by the upper half-carcass 3 and the lower half-carcass 4, made rigid sealing in a known manner, such as for example welding.
• the half-carcass 3 has lower protrusions, situated on one side and the other of the major axis thereof, and the half-carcass 4 is provided for with b and c holes. small and large, diametrically opposite, having certainly located in the same plane, as well as with planar surfaces, thus placed, that they are located in the vertices of an isosceles trapezoid.
• the dami-carcass 3 has a lower e-shaped portion and an upper portion (f). asymmetrical, to attenuate frequencies that have harmful effects on hearing.
• the rotational movement of the motor 1 is transmitted by means of a shaft 5 and respectively from a slider 6 to a piston 7 located in the cylinder block 2.
• the shaft 5 has a counterweight g, and, with that -this, diametrically opposite, is an eccentric h, in connection with which is slid the slide 6.
• the cylinder block 2 is provided with an axial hole i, near which there are cavities j and k, which communicate with each other, by an open, short channel 1.
• the cylinder block 2 On the one hand and on the other of the cavities j and k, the cylinder block 2 has holes m and n drilled, large and, respectively small, closed.
• the counterweight g partially enters an external relief groove 0, formed in the cylinder block 2.
• the cylinder block 2 has a greater prominence p located near the portion f of the half-carcass 3.
• channels r At the level of a front surface g in the cylinder block 2 are formed channels r, acant the parallel axes, between them and holes s engorged.
• the cylinder block 2 is fixed to a body 8, using a few screws, which are not shown in the drawings, introduced by drilled holes, the positioning and adjustment being done using the pins, which do not are not shown in the drawings, placed in the holes n engorged, and enters the cylinder block 2 and the body 8 is mounted a gasket 9 elastic, flat, sealing.
• the body 8 has spurs t directed upwards, placed at the level of the prominences a of the half-carcass 3, as well as cavities situated at the level of the cavities j and k, a situation which is not shown in the drawing.
• the body 8 has a nucleus u into which partially penetrates an upper end v of a tree 5, and the counterweight g is located above the body a
• holes 8 are located in the body 8 located near the hub u, at least two of which are formed at the level of cylinder block 2.
• the cover 13 has ribs z lungitudinal, zitea symmetrically nt compared to its axis of symmetry, of which there below has a prominence a 'having the shape ed' of a drop, whose axis of symmetry coincides with that of the cover 13, and had nivesu of this prominence a ', in the cover is practiced a hole b' of suction delimited by a wall they converge, the center of which coincides with the center of a lower portion of the prominence a '.
• the latter has a channel f', through which partially enters the collar e '.
• an upper hole g ′ is made, under which is located that of the protrusion h ′ for positioning the hole g ′ relative to the valve support chair.
• the part 12 has walls i ', k' and vertical, exterior and interior, which together with the walls m 'and n' vertical and respectively walls o 'and p' inclined upper and lower respectively , delimit the compartments q 'and r'.
• Walls k 'and the lower are linked by a middle wall s, which, with the walls r' and the delimit a median compartment t '.
• In the cover 13 are also provided channels u 'and v' verticauk, into which the walls k 'and the partially enter, thereby the compartment t' being separated from the outside by the cover 13.
• the compartment t ' is in communication with the compartments q' and r ', to reduce the noise level during the circulation of the refrigerant.
• the suction hole b has the center located on the same axis on which the center of the hole b "is placed, practiced in the semi-carcass 4.
• the pump C is formed of a body 14 of revolution, with upper cylindrical portions b and c and lower conical, at the level of the existing portion c of the radial fins
• the body has diametrically opposite fins and longitudinal fins.
• the body 14 has spurs f", located diametrically coposed, which penetrate into the logemonts g ", practiced in the tree 5 in the conditions where in a can 1 h" axial, practiced in the shaft 5 partially penetrates the portion b ".
• Maintaining the body 14 in the mounted position, in the shaft 5, is made using an elastic ring 15, which is in contact with a wall i ", of frustoconical shape, to ensure the frontal contact of the body 14 with tree 5.
• ges guides 16 and 19 have the axes in extension and are placed dan s the vertices of an isosceles trapezoid. ayart the center of gravity in the vertical direction of the center of gravity of the supported mass.
• the panels 20 and 21 are so dimensioned that they do not allow limited movement in a horizontal plane, by bringing them into contact with the half-carcass 4.
• the body 8 is fixed on the panels 20 and 21 using the screws 22 which penetrate also pierce the motor 1.
• the power supply of the motor 1 with electrical energy is carried out using a three-pole terminal 23, placed in the hole c of the half-carcesse, the contacting of the terminal 23 on the motor l being made very close to this one.
• the pamper C is turned by the shaft 5, so that the oil is drawn upwards through an orifice j "lower than the body 14, being transported by a shaped channel K" spiral, mistletoe exists inside the shaft 5, until contact with 1 half-carcass 3.
• the refrigerant is transported by a tube 24.
• the compressor has the following advantages:

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Compressor (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=20125759

Family Applications (1)

Country Status (5)

Families Citing this family (9)

Family Cites Families (15)

• 1989
  • 1989-10-06 RO RO141894A patent/RO100617B1/ro unknown
• 1990
  • 1990-09-21 US US07/678,264 patent/US5228843A/en not_active Expired - Fee Related
  • 1990-09-21 DE DE90914562T patent/DE69007969D1/de not_active Expired - Lifetime
  • 1990-09-21 EP EP90914562A patent/EP0451230B1/de not_active Expired - Lifetime
  • 1990-09-21 WO PCT/RO1990/000002 patent/WO1991005165A1/fr not_active Ceased

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events