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WO2008028736A1 - Compresseur à piston alternatif - Google Patents

Compresseur à piston alternatif Download PDF

Info

Publication number
WO2008028736A1
WO2008028736A1 PCT/EP2007/058184 EP2007058184W WO2008028736A1 WO 2008028736 A1 WO2008028736 A1 WO 2008028736A1 EP 2007058184 W EP2007058184 W EP 2007058184W WO 2008028736 A1 WO2008028736 A1 WO 2008028736A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor according
cylinder
compressor
leaf spring
inlet
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/EP2007/058184
Other languages
German (de)
English (en)
Inventor
Marco Giacchi
Thorsten Kusnik
Jan-Grigor Schubert
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to EP07788285A priority Critical patent/EP2064445B1/fr
Priority to US12/310,761 priority patent/US20100008801A1/en
Publication of WO2008028736A1 publication Critical patent/WO2008028736A1/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
    • 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
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates
    • 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
    • F04B39/1073—Adaptations or arrangements of distribution members the members being reed 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
    • F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
    • F04B39/1086—Adaptations or arrangements of distribution members the members being reed valves flat annular reed valves

Definitions

  • the present invention relates to a compressor having a cylinder which includes a compression chamber of circular cross-section in which a reciprocating piston is reciprocally movable.
  • Inlet and outlet openings for a medium to be compressed are often both arranged on an end wall of the cylinder.
  • the piston in the compression chamber must not be rotatable about its longitudinal axis.
  • a conventional, driven by a rotating engine via a crank mechanism reciprocating piston this is not a problem.
  • rotation of the piston about the longitudinal axis is not ruled out. If such a rotatable piston is provided with a projection in the manner described above, there is a risk that the projection after a rotation of the piston no longer hits the outlet opening and instead strikes against the end wall of the cylinder, resulting in the destruction of the compressor can.
  • the object of the invention is to provide a compressor which achieves high efficiency, without a rotation of the piston in the compressor chamber about its longitudinal axis must be constructively excluded.
  • the object is achieved in that in a compressor with a cylinder in which a compression chamber is formed by a circular cross-section and in an end wall the inlet and outlet openings are formed for a medium to be compressed, and a reciprocating in the compression chamber reciprocating piston, which carries on its end wall surface facing a Austreibervorsprung, which engages in a dead center position of the piston in the outlet, the longitudinal axis of the Cylinder passes through the outlet opening.
  • a longitudinal axis should be understood the center axis.
  • the latter preferably has a non-circular cross-section whose dimension in the circumferential direction of the cylinder is greater than in the radial direction.
  • the inlet opening may have a cross section in the form of a circular arc.
  • a plurality of inlet openings distributed around the outlet opening may be provided. These are expediently distributed along a circular arc.
  • the circular arc is expediently concentric to the longitudinal axis. Preferably, it extends over an angle of less than 180 °. The latter is particularly useful in order to shut off the entire inlet cross-section with a single shut-off.
  • shut-off body is preferably acted upon by a arranged in the compression chamber first leaf spring against the inlet opening.
  • a second shut-off body is preferably acted upon by a arranged on the outside of the end wall second leaf spring against the outlet opening.
  • each leaf spring is held by at least two rivets to prevent twisting of the leaf spring, which could cause the locking body no longer properly obscured the associated opening.
  • Fig. 1 is a perspective view of a linear compressor according to the invention
  • Fig. 2 is an exploded view of parts of the compressor of Fig. 1;
  • FIG. 3 shows a section through the cylinder of the compressor from FIG. 1.
  • Fig. 1 shows an example of the structure of a linear compressor for a refrigeration device, which represents a preferred application of the invention.
  • the linear compressor has a rigid, in plan view approximately U-shaped frame, which is composed of two flat wall pieces 1 and a sheet 2. Between two mutually facing end sides of the sheet 2 and the two wall pieces 1, a first diaphragm spring 3 is clamped, a second diaphragm spring 4 of the same shape as the diaphragm spring 3 is fixed to the side facing away from the sheet 2 of the wall pieces 1.
  • the stamped from spring plate diaphragm springs 3, 4 each have four spring arms 5, which extend in a zigzag from the wall pieces 1 to a central portion 6, with which they meet.
  • the central portion 6 has two holes, two outer to which by means of screws or rivets 7, a permanent magnetic oscillating body 8 is suspended, and a central bore, through which in the diaphragm spring 3 a to the oscillating body 8 z.
  • B. fastened by screwing Piston rod 10 extends.
  • the piston rod 10 connects the oscillating body 8 with a reciprocating piston, not visible in the figure, in the interior of a cylinder 15, which is carried by the arch 2.
  • Refrigerant inlet and outlet ports of the pumping chamber are designated 16 and 17, respectively.
  • Two electromagnets 9 with E-shaped yoke and a wound around the middle leg of the E coil are each arranged between the oscillating body 8 and the wall pieces 1 with the oscillating body 8 pole pieces and serve to drive a swinging movement of the oscillating body 8.
  • a control circuit 37 supplies the Electromagnets 9 with an alternating current, whose frequency is adapted to the natural frequency of the oscillatory system, which is formed by the diaphragm springs 3, 4, the oscillating body 8 and driven by him lifting piston.
  • the cylinder 15 is, as seen in Fig. 1, divided into a main body 1 1, in which the reciprocating piston is guided to and fro, a valve plate 12, which forms an end wall of a recessed in the main body compression chamber, and a cap 13 at the inlet and outlet ports 16, 17 are located.
  • Main body extending compressor chamber is on the valve plate 12 as dashed
  • Circle 14 indicated.
  • the longitudinal axis of the compression chamber is shown in dash-dotted line.
  • a circular outlet bore 18 is arranged exactly coaxially with the longitudinal axis.
  • a circular arc-shaped slot extends about an angle of about 120 ° around the outlet bore 18 around and forms a
  • FIG. 1 Further holes 20 at the corners of the valve plate 12 are provided to receive screws, not shown, with which the valve plate 12 and the cap 13 are attached to the main body 1 1.
  • Two further holes 21 are used for fastening two leaf springs 22 and 23 on the valve plate 12 by means of rivets 24.
  • the leaf springs 22, 23 together with the inlet port 19 and the outlet bore 18 respectively inlet and outlet valves of the compressor chamber.
  • the leaf springs 22, 23 each have one elongated foot 25, in which to the holes 21 complementary holes 26 are formed for the rivets 24, and projecting from the foot to the longitudinal axis outwardly elastic tongue 27th
  • an opening 28 is cut, which, when the leaf spring 23 is riveted to the valve plate 12, the outlet hole 18 leaves free.
  • the tongue 27 of the leaf spring 22 abuts against the outlet bore 18 from the outside, with its tip acting as a shut-off valve of the outlet valve.
  • the interior of the cap 13 is divided by an intermediate wall 29 into a suction-side cavity 30 and a pressure-side cavity 31, to which the refrigerant inlet nozzle 16 or outlet nozzle 17 opens and which communicate with the compressor chamber via the inlet opening 19 and the outlet bore 18, respectively.
  • the designated with 32 reciprocating piston has on its side facing away from the viewer in the perspective of FIG. 2 a concentric projection 33 to the longitudinal axis, the length and diameter of the common thickness of the valve plate 12 and the
  • Fig. 3 shows a section through the main body 1 1 of the compression chamber and the reciprocating piston 32. It can be seen that the compression chamber 14 is surrounded by an annular cavity 34 which communicates with the compression chamber 14 through a plurality of small openings 35.
  • the cavity 34 extends in the longitudinal direction of the compression chamber 14 from the top to bottom dead center of the reciprocating piston 32. It is via a bore 36 of the valve plate 12 with the pressure-side cavity 31 of the cap 13 connected and fed in this way with compressed refrigerant that penetrates in small quantities through the openings 35 in the compression chamber 14 and so between the walls and the reciprocating piston 32 forms a gas cushion on which the reciprocating piston 32 is friction and low-wear movable.

Landscapes

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

Abstract

La présente invention concerne un compresseur comprenant : un cylindre (15) dans lequel une chambre de compression (14) est formée par une section arrondie, des ouvertures d'entrée et de sortie (18, 19) destinées à une substance à comprimer, étant formées dans une paroi frontale (12) du cylindre (15); et un piston alternatif (32) qui peut effectuer un mouvement de va-et-vient dans la chambre de compression (14) et porte sur sa face orientée vers la paroi frontale (12) un élément d'expulsion en saillie (33) qui vient en prise dans l'ouverture de sortie (18) lorsque le piston alternatif (32) se trouve au point mort. L'axe longitudinal du cylindre (15) traverse l'ouverture de sortie (18).
PCT/EP2007/058184 2006-09-07 2007-08-07 Compresseur à piston alternatif Ceased WO2008028736A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07788285A EP2064445B1 (fr) 2006-09-07 2007-08-07 Compresseur à piston alternatif
US12/310,761 US20100008801A1 (en) 2006-09-07 2007-08-07 Reciprocating piston compressor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006042015A DE102006042015A1 (de) 2006-09-07 2006-09-07 Hubkolbenverdichter
DE102006042015.2 2006-09-07

Publications (1)

Publication Number Publication Date
WO2008028736A1 true WO2008028736A1 (fr) 2008-03-13

Family

ID=38596318

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/058184 Ceased WO2008028736A1 (fr) 2006-09-07 2007-08-07 Compresseur à piston alternatif

Country Status (6)

Country Link
US (1) US20100008801A1 (fr)
EP (1) EP2064445B1 (fr)
CN (1) CN101512152A (fr)
DE (1) DE102006042015A1 (fr)
RU (1) RU2450160C2 (fr)
WO (1) WO2008028736A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB392811A (en) * 1932-10-03 1933-05-25 Teves Kg Alfred Improvements in electromagnetically actuated gas compressors
WO1997001033A1 (fr) * 1995-06-23 1997-01-09 Lg Electronics Inc. Appareil d'alimentation en refrigerant pour compresseur lineaire
DE19860726A1 (de) * 1997-12-30 1999-07-01 Lg Electronics Inc Auslassventilsystem für Linearkompressor
WO2003001061A1 (fr) * 2001-06-26 2003-01-03 Lg Electronics Inc. Structure de couplage de soupape d'aspiration pour compresseur alternatif

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2025240A (en) * 1934-10-20 1935-12-24 Universal Cooler Corp Refrigerant gas compressor
US2193123A (en) * 1936-02-28 1940-03-12 Roches Philip W Des Compressor valve
US2161769A (en) * 1936-03-23 1939-06-06 Mills Novelty Co Discharge valve for compressors and the like
US3509907A (en) * 1968-09-16 1970-05-05 Copeland Refrigeration Corp Compressor valving assembly
JPH0450470Y2 (fr) * 1987-04-16 1992-11-27
JPH04121477U (ja) * 1991-04-16 1992-10-29 サンデン株式会社 フリーピストン型コンプレツサー
US5147190A (en) * 1991-06-19 1992-09-15 General Motors Corporation Increased efficiency valve system for a fluid pumping assembly
US5265646A (en) * 1993-03-17 1993-11-30 Ingersoll-Rand Company Valve spacer plate
US5816783A (en) * 1993-05-19 1998-10-06 Hitachi, Ltd. Electrically driven hermetic compressor
US5454397A (en) * 1994-08-08 1995-10-03 Fel-Pro Incorporated Reed valve assembly and gas compressor incorporating same
KR100224186B1 (ko) * 1996-01-16 1999-10-15 윤종용 선형 압축기
KR100504319B1 (ko) * 1996-07-09 2005-09-26 산요덴키가부시키가이샤 선형압축기
US6505032B1 (en) * 2000-05-26 2003-01-07 Xtremespectrum, Inc. Carrierless ultra wideband wireless signals for conveying application data
US6540492B2 (en) * 2001-04-09 2003-04-01 Carrier Corporation Compressor piston with reduced discharge clearance

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB392811A (en) * 1932-10-03 1933-05-25 Teves Kg Alfred Improvements in electromagnetically actuated gas compressors
WO1997001033A1 (fr) * 1995-06-23 1997-01-09 Lg Electronics Inc. Appareil d'alimentation en refrigerant pour compresseur lineaire
DE19860726A1 (de) * 1997-12-30 1999-07-01 Lg Electronics Inc Auslassventilsystem für Linearkompressor
WO2003001061A1 (fr) * 2001-06-26 2003-01-03 Lg Electronics Inc. Structure de couplage de soupape d'aspiration pour compresseur alternatif

Also Published As

Publication number Publication date
RU2009109832A (ru) 2010-10-20
EP2064445B1 (fr) 2012-10-10
EP2064445A1 (fr) 2009-06-03
CN101512152A (zh) 2009-08-19
DE102006042015A1 (de) 2008-03-27
RU2450160C2 (ru) 2012-05-10
US20100008801A1 (en) 2010-01-14

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