EP0592811A1 - Valve device associated with the muffler of a motor-compressor unit - Google Patents

Valve device associated with the muffler of a motor-compressor unit Download PDF

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Publication number
EP0592811A1
EP0592811A1 EP93114477A EP93114477A EP0592811A1 EP 0592811 A1 EP0592811 A1 EP 0592811A1 EP 93114477 A EP93114477 A EP 93114477A EP 93114477 A EP93114477 A EP 93114477A EP 0592811 A1 EP0592811 A1 EP 0592811A1
Authority
EP
European Patent Office
Prior art keywords
muffler
motor
usual
compressor unit
valve
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Withdrawn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
EP93114477A
Other languages
German (de)
English (en)
French (fr)
Inventor
Alberto c/o Whirlpool Italia s.r.l. Rossi
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.)
Whirlpool Europe BV
Original Assignee
Whirlpool Europe BV
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 Whirlpool Europe BV filed Critical Whirlpool Europe BV
Publication of EP0592811A1 publication Critical patent/EP0592811A1/en
Withdrawn legal-status Critical Current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
    • F04B39/0027—Pulsation and noise damping means
    • 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
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
    • 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
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates

Definitions

  • This invention relates to a valve device associated with the usual muffler of a motor-compressor unit, for example of hermetically sealed type used in a refrigerator, comprising a valve plate provided with usual apertures for connecting the chambers of said muffler to the usual cylinder within which the piston of the motor-compressor unit moves in known manner, said apertures being interceptable by corresponding valve members.
  • valve members are of various shapes and dimensions and are formed by very different methods.
  • these known arrangements require special operations to be carried out during assembly (such as fixing at least part of each valve member to the plate or deforming the valve member) which negatively affect the production cost of the complete valve plate and the time required for its construction.
  • known valve members are often subjected to flexural stress, with the result that such members have to be constructed of particularly strong material, the cost and machining of which negatively influence the total production cost of the respective valve device and hence of the motor-compressor unit of which it forms part.
  • An object of the present invention is to provide a valve device for association with the muffler of a motor-compressor unit, which is of simple construction and is of lower production and installation cost than known analogous devices.
  • a further object is to provide a device in which the valve members are not subjected to mechanical stress such as to compromise their mechanical stability and their life.
  • a further object is to provide a device of the aforesaid type which can be at least partly constructed of different materials, allowing considerable versatility of choice and enabling the constructional cost of the device to be limited.
  • the device according to the invention comprises a valve plate 1 provided with usual apertures or passages 2 passing through the body 3 of said plate, said apertures connecting the usual cylinder within which the corresponding compressor piston (not shown) moves, to usual chambers 5 and 6 provided in a known muffler 7.
  • the plate 1 comprises through holes 10 for receiving usual fixing screws (not shown) by which the plate is fixed to the muffler 7, this latter being provided with a like number of holes 11 arranged coaxially with the holes 10 of said plate.
  • a seat 17 for receiving a flat element 18 acting as the valve member associated with said aperture 2.
  • the seat 17 comprises at least one cylindrical portion 20 in which the element 18 moves, and an annular recess 21 defining a raised edge 22 present about the mouth of the aperture 2 in the plate 1. The element 18 rests on this edge to close the aperture 2 during one stage in the operation of the motor-compressor unit.
  • the element 18 is subjected to the thrust action of a pressing element or member 23 defined by a helical compression spring mounted on a pin 25 associated with the muffler 7 and acting as a guide for the movement of the spring.
  • At least the portion 20 of the seat 17 is of regular section, ie is formed such that all the sectional planes X, Y which are parallel to each other and to the largest face 15 of the plate 1 define in correspondence with said portion geometrical figures which enclose the same area and have the same form. Specifically, in the embodiment shown in Figures 1 and 2 said planes X and Y (and every other plane parallel thereto) define circles in correspondence with the portion 20.
  • valve elements or members 18 move freely within their seats 17 (or within the portions 20) against the corresponding springs in a manner depending on whether the piston is in the suction or compression stage within the cylinder with which the plate 1 is associated. These elements are specifically guided during this movement by the wall 20A of the corresponding portion. This results in optimum intake or discharge of the fluid to be compressed, and on which the piston 3 of the motor-compressor unit operates.
  • Said members 18 are therefore not subjected to flexural stress, but only to forces directed along the axis K perpendicular to them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
EP93114477A 1992-10-16 1993-09-09 Valve device associated with the muffler of a motor-compressor unit Withdrawn EP0592811A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI922385 1992-10-16
ITMI922385A IT1255883B (it) 1992-10-16 1992-10-16 Dispsositivo valvolare associato ad una muffola di un motocompressore

Publications (1)

Publication Number Publication Date
EP0592811A1 true EP0592811A1 (en) 1994-04-20

Family

ID=11364129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93114477A Withdrawn EP0592811A1 (en) 1992-10-16 1993-09-09 Valve device associated with the muffler of a motor-compressor unit

Country Status (3)

Country Link
EP (1) EP0592811A1 (it)
BR (1) BR9304253A (it)
IT (1) IT1255883B (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106224204A (zh) * 2016-09-21 2016-12-14 安徽美芝制冷设备有限公司 压缩机用消音器和具有其的压缩机
CN106224205A (zh) * 2016-09-21 2016-12-14 安徽美芝制冷设备有限公司 压缩机的消音器及具有其的压缩机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1939801A (en) * 1931-07-22 1933-12-19 Bendix Westinghouse Automotive Valve
US2176691A (en) * 1937-04-09 1939-10-17 Miller Simons Inc Fluid compressor
DE921606C (de) * 1953-05-03 1954-12-23 Borsig Ag Sitzplatte mit auf konzentrischen Kreisen angeordneten Einzelventilen fuer Verdichter, Pumpen u. dgl.
FR1357621A (fr) * 1962-07-10 1964-04-10 Compresseur avec couvercle de soupape et silencieux combinés
JPS60111073A (ja) * 1983-11-21 1985-06-17 Mitsuwa Seiki Co Ltd エア−・コンプレッサ
DE4000275A1 (de) * 1989-01-13 1990-07-19 Brasil Compressores Sa Auslassventil fuer einen kolbenverdichter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1939801A (en) * 1931-07-22 1933-12-19 Bendix Westinghouse Automotive Valve
US2176691A (en) * 1937-04-09 1939-10-17 Miller Simons Inc Fluid compressor
DE921606C (de) * 1953-05-03 1954-12-23 Borsig Ag Sitzplatte mit auf konzentrischen Kreisen angeordneten Einzelventilen fuer Verdichter, Pumpen u. dgl.
FR1357621A (fr) * 1962-07-10 1964-04-10 Compresseur avec couvercle de soupape et silencieux combinés
JPS60111073A (ja) * 1983-11-21 1985-06-17 Mitsuwa Seiki Co Ltd エア−・コンプレッサ
DE4000275A1 (de) * 1989-01-13 1990-07-19 Brasil Compressores Sa Auslassventil fuer einen kolbenverdichter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 264 (M - 423)<1987> 22 November 1985 (1985-11-22) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106224204A (zh) * 2016-09-21 2016-12-14 安徽美芝制冷设备有限公司 压缩机用消音器和具有其的压缩机
CN106224205A (zh) * 2016-09-21 2016-12-14 安徽美芝制冷设备有限公司 压缩机的消音器及具有其的压缩机
CN106224205B (zh) * 2016-09-21 2018-05-01 安徽美芝制冷设备有限公司 压缩机的消音器及具有其的压缩机
CN106224204B (zh) * 2016-09-21 2018-06-15 安徽美芝制冷设备有限公司 压缩机用消音器和具有其的压缩机

Also Published As

Publication number Publication date
ITMI922385A0 (it) 1992-10-16
ITMI922385A1 (it) 1994-04-16
BR9304253A (pt) 1994-04-19
IT1255883B (it) 1995-11-17

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

18D Application deemed to be withdrawn

Effective date: 19941021