US3790308A - Spring suspension for mounting the motor compressor of a refrigerating machine in its case - Google Patents

Spring suspension for mounting the motor compressor of a refrigerating machine in its case Download PDF

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Publication number
US3790308A
US3790308A US00288770A US3790308DA US3790308A US 3790308 A US3790308 A US 3790308A US 00288770 A US00288770 A US 00288770A US 3790308D A US3790308D A US 3790308DA US 3790308 A US3790308 A US 3790308A
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US
United States
Prior art keywords
motor compressor
case
bracket
bores
leg
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.)
Expired - Lifetime
Application number
US00288770A
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English (en)
Inventor
B Romer
H Pedersen
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Danfoss AS
Original Assignee
Danfoss AS
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 Danfoss AS filed Critical Danfoss AS
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Publication of US3790308A publication Critical patent/US3790308A/en
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Expired - Lifetime 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/127—Mounting of a cylinder block in a casing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations

Definitions

  • ABSTRACT relates to a spring suspension system for mounting a motor compressor unit of a refrigeration machine in its case. Flanged, rectangularly shaped brackets are fixedly attached to the inner casing wall.
  • Brackets having an L-shape with one leg having the form of a frame are attached to the flanged brackets.
  • Each bracket set has a nesting arrangement 7 with the rectangularly shaped leg of the fixed bracket being nested in the frame part of the other bracket.
  • the flange of one bracket has apertures for receiving a resilient stirrup which wedgingly maintains the other bracket in its installed position.
  • the L-shaped brackets have bores which are respectively complementary to bores provided in the motor compressor unit. Coil spring are threadedly inserted in aligned pairs of bores to provide a resilient suspension system.
  • the invention relates to a spring suspension for mounting a motor compressor of a refrigerating machine in its case, and comprising a helical spring which is connected to the motor compressor and is held at its upper end in the first limb of an angled supporting element, which limb extends into the interior of the case, the second limb, which runs parallel with the wall of the case, being secured to a carrier firmly connected to the wall of the case.
  • one of the limbs of the angled supporting element is welded directly to the wall of the case.
  • the limbs, which are designed to hold the helical springs therefore project into the interior of the case when the motor compressor is to be introduced into the case for the purpose of assembly. Not only is the assembly operation impeded by this, but the case must often have a greater diameter than is necessary for operational purposes.
  • a bowed element is therefore secured to the wall of the case, and this element forms with the wall of the casean opening into which one of the limbs of the angled supporting element can be inserted from above.
  • the motor compressor need be only slightly smaller than the inside diameter of the case; the compressor can therefore be comfortably introduced into the case.
  • the inserted limb of the angled supporting element is only held in position by the weight of the motor compressor. If the compressor is transported in the upside down position, the limb can fall out of the opening into which it has been'inserted.
  • the object of the invention is to provide a spring suspension of the initially stated kind which does not impede the fitting of the motor compressor in the case and in which the angled supporting element is secured in the position in which it is fitted.
  • this object is achieved by providing the carrier with an integral strip which extends into the interior of the case and which has an upwardlyfacing bearing surface, at least one opening and a downwardly facing backing surface, by the second limb of the angled supporting element incorporating corresponding bearing and backing surfaces, said bearing surface being on a web at the upper end of this limb, and by the provision of at least one resilient rod which, through an opening in said integral strip, engages that side of the second limb remote from the wall of the case, lies against the lower end of the second limb, and presses this limb against the wall of the case.
  • the motor compressor can be comfortably introduced into the case from above, since only the narrow strip integral with the carrier projects into the interior of the case.
  • Thebearing surface of the angled supporting element is then pushed on to the strip and secured in this position by at least one resilient rod.
  • the resilient r'od presses the second limb against the wall of the case, so that when the angled supporting element is loaded in a direction opposite to that of the load applied by gravity during normal operations, no undesirable shifting of the angled supporting element occurs, since this is prevented by the complementary backing surfaces on the carrier and the angled supporting element.
  • the second limb of the angled supporting element merges with the first limb at its lower end. This results in a spring suspension of greater stability.
  • the strip integral with the carrier is disposed at the upper end of a fixing plate, and the second limb takes the form of a frame which embraces this plate.
  • the underside of the upper web of the frame then forms the bearing surface cooperating with the integral strip, whereas the upper side of the lower web of the strip provides the backing surface that cooperates with the backing surface formed on the lower end of the fixing plate.
  • the upper ends of the resilient rods are expediently bent towards the wall of the case. When these upper ends bear against the wall of the case, additional spring tension is obtained.
  • a particularly advantageous arrangement is that wherein the bent upper ends of the resilient rods extend into the gap separating the cup shaped body and the cover plate of the case. After the two parts of the case have been welded up, the resilient rod is not only held in position by its clamping action, but it also prevented from slipping out by means that confine it axially.
  • FIG. 1 is a diagrammatic longitudinal section through an encased motor compressor with the spring suspension in accordance with the invention.
  • FIG. 2 is a perspective illustration of various parts of the spring suspension.
  • a motor compressor 1 is mounted in a case 2.
  • the case consists of acup shaped lower part '3 and a cover plate 4 which are interconnected along a plane of division 5.
  • the motor compressor 1 has a carrier element 6 on which a stator 7 is mounted; a cylinder 8 and a bearing 9 are formed integrally with this carrier element.
  • the element also supports the shaft 10 which carriers a rotor 11 and drives a piston through a crankpin 12. Also, a cylinder head 14 and a noise reducing element 15 are secured to the cylinder.
  • This motor compressor 1 is connected to the case 2 by means of a spring suspension 16.
  • the spring suspension 16 comprises a carrier 17, an angled supporting element 18, a resilient stirrup l9 and v a helical spring 20.
  • One end of the helical spring is secured in a holder 21 in the carrier element 6, and its other end is a holder 22 in the first limb 23 of the angled supporting element 18.
  • the second limb 24 is in the form of a frame. Thus it consists of an upper web 25, two side webs-26 and 27 and a lower web 28.
  • the downwardly facing surface 29 of theupper web 25 is a bearing surface
  • the upwardly facing surface 30 of the lower web 28 is a backing surface 30.
  • the carrier 17 consists of a fixing plate 31, which is welded to the wall of the case 2, and of an integral strip 32 extending into the interior of the case.
  • the upwardly facing surface of the strip 32 constitutes a bearing surface 33
  • the downwardly facing surface of the fixing plate 31 constitutes a backing surface 34.
  • the open crosssection of the frame 24 is of such dimensions that it can be pushed over the carrier 17, the surface 29 bearing on the surface 33, and the surface 30 lying opposite to and at a slight distance from the surface 34.
  • Two openings 35 are provided in the strip.
  • Two parallel resilient rods 36, connected to form a stirrup 19, extend through these openings.
  • the upper end of the resilient strip 19 is bent towards the wall of the case. That surface of the lower web 28 facing inwardly of the case slopes inwards and downwards.
  • the fixing plate 31 of the carrier 17 is first firmly welded to the wall of the case 2.
  • the frame-like second limb 24 of the angled supporting element 18 is pushed over the carrier 17, so that the surface 29 lies opposite the surface 32, and the surface 30 opposite the surface 34.
  • the rods 36 of the resilient stirrup 19 are now pushed downwards through the holes 35 in the strip 32, the lower ends of the rods moving over the inclined surface of the web 28, and finally occupying the tensioned position illustrated in FIG. 1.
  • the bent upper portion of the stirrup 19 is then located at the level of the gap 5.
  • the cover plate 4 has been welded on to the cup shaped body 3, the resilient stirrup 19 cannot be displaced. It will be seen that the angled supporting element 18 retains its position not only when subjected to normal loading, as shown in FIG. 1 but also when under any other kind of load.
  • a motor compressor assembly comprising a casing, a motor compressor unit disposed in said casing, a two part holder having a bracket part attached to the inside wall of said casing and an L-shaped part attachable to said bracket part, said bracket part having av rectangular shape and a flange extending from the upper edge thereof, said L-shaped part having two legs with one leg having a bore and the other leg having the fonn of a rectangular frame in which said bracket part nests, said bracket part flange having aperture means part in a fixed position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Compressor (AREA)
US00288770A 1971-09-14 1972-09-13 Spring suspension for mounting the motor compressor of a refrigerating machine in its case Expired - Lifetime US3790308A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2145883A DE2145883C3 (de) 1971-09-14 1971-09-14 Federaufhängung für einen Motorverdichter einer Kältemaschine in seiner Kapsel

Publications (1)

Publication Number Publication Date
US3790308A true US3790308A (en) 1974-02-05

Family

ID=5819506

Family Applications (1)

Application Number Title Priority Date Filing Date
US00288770A Expired - Lifetime US3790308A (en) 1971-09-14 1972-09-13 Spring suspension for mounting the motor compressor of a refrigerating machine in its case

Country Status (13)

Country Link
US (1) US3790308A (xx)
JP (1) JPS4837745A (xx)
AR (1) AR197476A1 (xx)
AU (1) AU463326B2 (xx)
BR (1) BR7206377D0 (xx)
CA (1) CA971931A (xx)
DD (1) DD97740A5 (xx)
DE (1) DE2145883C3 (xx)
ES (1) ES405809A1 (xx)
FR (1) FR2152870B1 (xx)
GB (1) GB1407047A (xx)
IT (1) IT964868B (xx)
SE (1) SE373197B (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955900A (en) * 1975-03-17 1976-05-11 Vinci J Fredrick Mounting structure
US4115039A (en) * 1976-04-21 1978-09-19 Danfoss A/S Resilient pressure tube
US20080219860A1 (en) * 2007-03-08 2008-09-11 Alltrade Tools Llc Protection system for air compressor assembly
CN104728087A (zh) * 2013-12-24 2015-06-24 珠海凌达压缩机有限公司 一种压缩机及其外壳

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60152548A (ja) * 1984-01-23 1985-08-10 Japan Synthetic Rubber Co Ltd 塩化ビニル系樹脂組成物

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1929171A (en) * 1931-09-18 1933-10-03 Jenkinson George Brockley Mounting for wall fixtures and the like
US3089639A (en) * 1960-03-16 1963-05-14 Tecumseh Products Co Structure for supporting a motor-compressor unit in a housing
US3367609A (en) * 1966-07-01 1968-02-06 Gen Electric Hermetic compressor unit and spring support means thereof
US3445059A (en) * 1967-09-25 1969-05-20 Tecumseh Products Co Motor-compressor unit
US3531222A (en) * 1968-08-08 1970-09-29 Tecumseh Products Co Hermetic compressor discharge tube construction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1929171A (en) * 1931-09-18 1933-10-03 Jenkinson George Brockley Mounting for wall fixtures and the like
US3089639A (en) * 1960-03-16 1963-05-14 Tecumseh Products Co Structure for supporting a motor-compressor unit in a housing
US3367609A (en) * 1966-07-01 1968-02-06 Gen Electric Hermetic compressor unit and spring support means thereof
US3445059A (en) * 1967-09-25 1969-05-20 Tecumseh Products Co Motor-compressor unit
US3531222A (en) * 1968-08-08 1970-09-29 Tecumseh Products Co Hermetic compressor discharge tube construction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955900A (en) * 1975-03-17 1976-05-11 Vinci J Fredrick Mounting structure
US4115039A (en) * 1976-04-21 1978-09-19 Danfoss A/S Resilient pressure tube
US20080219860A1 (en) * 2007-03-08 2008-09-11 Alltrade Tools Llc Protection system for air compressor assembly
CN104728087A (zh) * 2013-12-24 2015-06-24 珠海凌达压缩机有限公司 一种压缩机及其外壳

Also Published As

Publication number Publication date
GB1407047A (en) 1975-09-24
AU463326B2 (en) 1975-07-24
ES405809A1 (es) 1975-07-16
DE2145883C3 (de) 1978-08-17
AR197476A1 (es) 1974-04-15
DE2145883B2 (de) 1973-07-26
SE373197B (xx) 1975-01-27
BR7206377D0 (pt) 1973-07-19
FR2152870A1 (xx) 1973-04-27
AU4475272A (en) 1974-02-07
DD97740A5 (xx) 1973-05-12
FR2152870B1 (xx) 1975-01-03
CA971931A (en) 1975-07-29
DE2145883A1 (de) 1973-04-12
JPS4837745A (xx) 1973-06-04
IT964868B (it) 1974-01-31

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