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WO2000070223A1 - Compresseur a mouvement alternatif entraine par un moteur lineaire - Google Patents

Compresseur a mouvement alternatif entraine par un moteur lineaire Download PDF

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Publication number
WO2000070223A1
WO2000070223A1 PCT/BR2000/000053 BR0000053W WO0070223A1 WO 2000070223 A1 WO2000070223 A1 WO 2000070223A1 BR 0000053 W BR0000053 W BR 0000053W WO 0070223 A1 WO0070223 A1 WO 0070223A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
motor
compressor
travel direction
reciprocating compressor
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.)
Ceased
Application number
PCT/BR2000/000053
Other languages
English (en)
Inventor
Dietmar Erich Bernhard Lilie
Rinaldo Puff
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.)
Empresa Brasileira de Compressores SA
Original Assignee
Empresa Brasileira de Compressores SA
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 Empresa Brasileira de Compressores SA filed Critical Empresa Brasileira de Compressores SA
Publication of WO2000070223A1 publication Critical patent/WO2000070223A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F04B39/0044—Pulsation and noise damping means with vibration damping supports
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
    • 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

Definitions

  • the present invention refers to a suspension system for mounting a motor-compressor assembly inside a hermetic shell and to be applied to a reciprocating compressor driven by a linear motor and of the type used in small refrigerating appliances, such as refrigerators, freezers, drinking fountains, etc.
  • the gas compression mechanism occurs by the axial movement of approximation and separation of a piston inside a cylinder, in relation to a cylinder head, which is mounted to an end of the cylinder and where suction and discharge valves are provided for regulating the admission and discharge of the gas in relation to the cylinder.
  • the piston is driven by an actuator, which sustains a magnetic component actuated by the linear motor.
  • the piston is connected to a resonant spring, with which it forms, together with the magnetic component, the resonant assembly of the compressor.
  • This resonant assembly has the function of developing a linear reciprocating movement, making the movement of the piston inside the cylinder exert a compression action on the gas admitted by the suction valve, until said gas is discharged to the high pressure side of the refrigeration system to which the compressor is mounted.
  • the motor- compressor assembly is mounted inside a hermetic shell on suspension springs provided therewithin. These suspension springs minimize the transmission of vibration from the motor-compressor assembly to the hermetic shell. Such vibration is generated by the reciprocating movement of the resonant assembly in relation to the motor and has a preferential direction, being more intense in the direction of the reciprocating movement and less intense in both directions orthogonal to said direction of reciprocating movement .
  • a reciprocating compressor driven by a linear motor having a motor-compressor assembly, which is mounted suspended inside a hermetic shell and includes a piston reciprocating inside a cylinder and actuated by an actuator which sustains a magnetic component actuated by the linear motor
  • said compressor comprising at least two suspension arms, mounted to the hermetic shell and to the cylinder and provided spaced from each other and transversal in relation to the travel direction of the piston, each suspension arm having, in the travel direction of the piston, enough flexibility to minimize the transference of vibrations from the motor-compressor assembly to the hermetic shell and, in the directions transversal to said travel direction of the piston, enough rigidity to avoid oscillations of the motor-compressor assembly in said transversal directions.
  • Figure 1 shows, schematically, a longitudinal diametrical sectional view of part of a reciprocating compressor with a linear motor, constructed according to the prior art
  • Figure 2 shows, schematically, a longitudinal diametrical sectional view of part of a reciprocating compressor with a linear motor, constructed according to the present invention
  • Figure 3 shows, in a schematic perspective view, a constructive form of a suspension plate of the present invention.
  • the present invention will be described in relation to a reciprocating compressor used in refrigeration systems and driven by a linear motor, this motor- compressor assembly being mounted inside a hermetic shell 1, which connects the compressor to a refrigeration system, for example.
  • the compressor has a piston 2 provided inside a cylinder 3 and coupled to an actuating means 4, which is usually tubular, external to the cylinder 3 and sustains a magnetic component 5, which is axially impelled upon energization of the linear motor.
  • the separation and approximation movements of the piston 2 inside the cylinder 4 in relation to a cylinder head 6 mounted to an end of the cylinder 4 determines, respectively, the suction and compression operations of the gas in the compressor.
  • a suction orifice where is mounted a suction valve 7, and a discharge orifice, where is mounted a discharge valve 8, which valves regulate the admission and discharge of the gas in relation to the cylinder " 3.
  • Piston 2 is connected to a resonant spring 9 and forms with the latter and with the magnetic component 5 a resonant assembly.
  • the motor-compressor assembly is suspended inside the hermetic shell 1 by suspension means in the form of helical springs 10, which are placed at the lower part of the inside of the hermetic shell 1.
  • the mounting of the motor-compressor assembly inside the hermetic shell 1 occurs through a suspension means comprising at least two suspension arms 20 mounted to both the hermetic shell 1 and to the cylinder 3, transversally to the travel direction of the piston 2, and spaced from each other, in said direction, by a distance sufficient to avoid that regions of the motor- compressor assembly external to the suspension arms 20 be subjected, upon movement of the piston 2 in the cylinder 3, to forces capable of provoking oscillations of said motor-compressor assembly transversal to said travel direction of the piston 2.
  • the suspension arms 20 are made resistant to traction and compression movements and have enough flexibility to avoid, by minimizing the occurrence of vibrations of the motor-compressor assembly in the travel direction of the piston, the oscillations of this motor-compressor assembly in the directions transversal to said travel direction.
  • the motor-compressor assembly is mounted inside the hermetic shell 1 through two suspension arms 20, each having a first end 21, to be mounted to said hermetic shell 1, and a second end 22, to be mounted to an end portion of the cylinder, for example outside the motor-compressor assembly, so that said mounting to the cylinder 3 defines a mounting axis, coinciding with the axis of the piston 2 and that said mounting to the hermetic shell 1 determines an alignment of the first ends 21, according to a direction parallel to the axis of the piston 2.
  • the suspension arms 20 are flat, in the form of flexible plates of reduced thickness in the travel direction of the piston 2 and parallel to each other, each plate being formed, for example, by a pair of metallic blades spaced from each other by an elastomeric material, such as rubber.
  • each plate has, in its second end 22, a throughbore 23, which permits the introduction of a fixation element, such as a screw, for mounting said plate to the motor-compressor assembly.
  • a fixation element such as a screw
  • the present invention further allows, for example, mounting the motor- compressor assembly to the hermetic shell through three or more suspension arms 20 angularly provided in relation to each other and aligned in relation to the travel direction of the piston 2, on the same side of the motor-compressor assembly, or each suspension arm 20 being mounted to one side of said motor-compressor assembly, for example, on the same plane transversal to the travel direction of the piston 2, or diagonally spaced in relation to said travel direction.
  • each metallic blade may be further coated with an elastomeric material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

cette invention concerne un compresseur à mouvement alternatif entraîné par un moteur linéaire, qui possède un ensemble moto-compresseur suspendu dans une coque hermétique (1), et qui comprend un piston (2) à mouvement alternatif dans un cylindre (3). Ce compresseur comprend aussi au moins deux bras de suspension (20), monté sur la coque hermétique (1) et sur le cylindre (3), espacés l'un par rapport à l'autre et situé perpendiculairement à la direction du mouvement du piston. Chaque bras de suspension (20) présente une flexibilité suffisante dans la direction du mouvement du piston (2) pour minimiser le transfert des vibrations de l'ensemble moto-compresseur à la coque hermétique (1), et une rigidité suffisante perpendiculairement à la direction du mouvement du piston (2) pour éviter les oscillations de cet ensemble moto-compresseur dans cette dernière direction.
PCT/BR2000/000053 1999-05-17 2000-05-15 Compresseur a mouvement alternatif entraine par un moteur lineaire Ceased WO2000070223A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR9902514-0A BR9902514A (pt) 1999-05-17 1999-05-17 Compressor alternativo acionado por motor linear
BRPI9902514-0 1999-05-17

Publications (1)

Publication Number Publication Date
WO2000070223A1 true WO2000070223A1 (fr) 2000-11-23

Family

ID=4072725

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2000/000053 Ceased WO2000070223A1 (fr) 1999-05-17 2000-05-15 Compresseur a mouvement alternatif entraine par un moteur lineaire

Country Status (2)

Country Link
BR (1) BR9902514A (fr)
WO (1) WO2000070223A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005028867A1 (fr) * 2003-09-22 2005-03-31 Lg Electronics Inc. Appareil destine a fixer le stator d'un moteur de compresseur reciproque et procede associe
WO2006069875A3 (fr) * 2004-12-23 2006-11-16 Bsh Bosch Siemens Hausgeraete Ventilateur lineaire
WO2007011245A3 (fr) * 2005-07-21 2007-03-29 Fisher & Paykel Appliances Ltd Compresseur lineaire
US7896623B2 (en) 2004-12-23 2011-03-01 Bsh Bosch Und Siemens Hausgeraete Gmbh Linear compressor with spring arrangement
US7913613B2 (en) 2004-12-22 2011-03-29 Bsh Bosch Und Siemens Hausgeraete Gmbh Piston/cylinder unit
EP2975267A1 (fr) * 2014-07-16 2016-01-20 LG Electronics Inc. Compresseur linéaire et réfrigérateur comprenant un compresseur linéaire
EP2659139A4 (fr) * 2010-12-27 2018-01-24 Whirlpool S.A. Mécanisme résonant destiné à des compresseurs linéaires
EP3636928A4 (fr) * 2017-06-06 2020-04-22 Gree Electric Appliances (Wuhan) Co., Ltd. Unité de climatiseur, compresseur et structure de logement de celle-ci
CN112350493A (zh) * 2019-08-06 2021-02-09 皇家飞利浦有限公司 水密且坚固的马达悬架
CN112855542A (zh) * 2021-01-12 2021-05-28 珠海格力节能环保制冷技术研究中心有限公司 一种压缩机壳体装置及压缩机
EP3882463A1 (fr) * 2020-03-17 2021-09-22 LG Electronics Inc. Système d'amortissement de vibrations par une source vibrante suspendue et compresseur utilisant ce système

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1222425A (en) * 1967-03-04 1971-02-10 Philips Nv Electrodynamic vibrator compressor
US4416594A (en) * 1979-08-17 1983-11-22 Sawafuji Electric Company, Ltd. Horizontal type vibrating compressor
US5772410A (en) * 1996-01-16 1998-06-30 Samsung Electronics Co., Ltd. Linear compressor with compact motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1222425A (en) * 1967-03-04 1971-02-10 Philips Nv Electrodynamic vibrator compressor
US4416594A (en) * 1979-08-17 1983-11-22 Sawafuji Electric Company, Ltd. Horizontal type vibrating compressor
US5772410A (en) * 1996-01-16 1998-06-30 Samsung Electronics Co., Ltd. Linear compressor with compact motor

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7617594B2 (en) 2003-09-22 2009-11-17 Lg Electronics Inc. Apparatus for fixing a stator of a motor of a reciprocal compressor
WO2005028867A1 (fr) * 2003-09-22 2005-03-31 Lg Electronics Inc. Appareil destine a fixer le stator d'un moteur de compresseur reciproque et procede associe
CN100436816C (zh) * 2003-09-22 2008-11-26 Lg电子株式会社 用于固定往复式压缩机电机定子的设备及其方法
US7913613B2 (en) 2004-12-22 2011-03-29 Bsh Bosch Und Siemens Hausgeraete Gmbh Piston/cylinder unit
US8038418B2 (en) 2004-12-23 2011-10-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Linear compressor
US7896623B2 (en) 2004-12-23 2011-03-01 Bsh Bosch Und Siemens Hausgeraete Gmbh Linear compressor with spring arrangement
WO2006069875A3 (fr) * 2004-12-23 2006-11-16 Bsh Bosch Siemens Hausgeraete Ventilateur lineaire
AU2006270592B2 (en) * 2005-07-21 2010-11-25 Fisher & Paykel Appliances Limited Clamping stator parts in linear compressors
WO2007011245A3 (fr) * 2005-07-21 2007-03-29 Fisher & Paykel Appliances Ltd Compresseur lineaire
US8177523B2 (en) 2005-07-21 2012-05-15 Fisher & Paykel Appliances Limited Linear compressor
EP2659139A4 (fr) * 2010-12-27 2018-01-24 Whirlpool S.A. Mécanisme résonant destiné à des compresseurs linéaires
EP2975267A1 (fr) * 2014-07-16 2016-01-20 LG Electronics Inc. Compresseur linéaire et réfrigérateur comprenant un compresseur linéaire
US10626859B2 (en) 2014-07-16 2020-04-21 Lg Electronics Inc. Linear compressor and refrigerator including a linear compressor
EP3636928A4 (fr) * 2017-06-06 2020-04-22 Gree Electric Appliances (Wuhan) Co., Ltd. Unité de climatiseur, compresseur et structure de logement de celle-ci
US11408411B2 (en) 2017-06-06 2022-08-09 Gree Electric Appliances (Wuhan) Co., Ltd Air-conditioning unit, compressor and housing structure thereof
CN112350493A (zh) * 2019-08-06 2021-02-09 皇家飞利浦有限公司 水密且坚固的马达悬架
EP3882463A1 (fr) * 2020-03-17 2021-09-22 LG Electronics Inc. Système d'amortissement de vibrations par une source vibrante suspendue et compresseur utilisant ce système
US11739747B2 (en) 2020-03-17 2023-08-29 Lg Electronics Inc. Vibration damping structure for a compressor and a compressor including vibration damping structure
CN112855542A (zh) * 2021-01-12 2021-05-28 珠海格力节能环保制冷技术研究中心有限公司 一种压缩机壳体装置及压缩机

Also Published As

Publication number Publication date
BR9902514A (pt) 2001-01-09

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