EP0321782A1 - Machine de déplacement de fluide du type à volute - Google Patents

Machine de déplacement de fluide du type à volute Download PDF

Info

Publication number
EP0321782A1
EP0321782A1 EP88120415A EP88120415A EP0321782A1 EP 0321782 A1 EP0321782 A1 EP 0321782A1 EP 88120415 A EP88120415 A EP 88120415A EP 88120415 A EP88120415 A EP 88120415A EP 0321782 A1 EP0321782 A1 EP 0321782A1
Authority
EP
European Patent Office
Prior art keywords
spiral
displacement body
peripheral wall
displacement
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.)
Granted
Application number
EP88120415A
Other languages
German (de)
English (en)
Other versions
EP0321782B1 (fr
Inventor
Roland Kolb
Fritz Spinnler
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Priority to AT88120415T priority Critical patent/ATE67273T1/de
Publication of EP0321782A1 publication Critical patent/EP0321782A1/fr
Application granted granted Critical
Publication of EP0321782B1 publication Critical patent/EP0321782B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F01C1/0207—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F01C1/0246—Details concerning the involute wraps or their base, e.g. geometry

Definitions

  • the invention relates to a rotary piston displacement machine for compressible media, with at least one conveying space delimited by spiral peripheral walls extending vertically from a side wall of a fixed housing, which leads from an inlet lying outside the spiral to an outlet lying inside the spiral, and with one spiral-shaped displacement body protruding into the conveying space, which is mounted in relation to the conveying space to perform a circular, torsion-free movement and whose center is offset eccentrically relative to the center of the peripheral walls such that the displacement body always has both the outer and the inner peripheral wall of the conveying space almost touched on at least one progressive sealing line, and the spiral shape is selected so that the theoretically largest possible inlet volume in the delivery space between the displacement body and the outer peripheral wall is reached before the kr ironing runner, which carries the vertical displacement body, assumes the 0 ° / 360 ° position with respect to the delivery chamber, in which the displacement body rests on the outer peripheral wall.
  • a rotary machine the principle of which is known from DE-C3 26 03 462, is suitable for charging an internal combustion engine, since it is characterized by an almost pulsation-free conveyance of the working medium, which consists, for example, of air or an air / fuel mixture.
  • the working medium which consists, for example, of air or an air / fuel mixture.
  • a machine of the type mentioned at the outset is known from DE-A-3 138 585.
  • the fact that the theoretically maximum inlet volume is larger than the actually achievable volume results from the fact that the spiral consists of a plurality of adjoining circular arc segments, each with a smaller radius is composed.
  • a schematic diagram of this behavior is shown in FIG. 2 to be described later.
  • the displacement body lies in the so-called 0 ° / 360 ° position on the outer circumferential wall, which means that the suction process is considered complete.
  • tests using water models have now shown that with this configuration, a not inconsiderable part of the medium drawn in flows back from the delivery chamber into the inlet during the closing process.
  • the invention is therefore based on the object of designing the inlet area of such a machine in such a way that that the backflow is reduced, which improves the volumetric efficiency.
  • this is achieved in that the sealing line at the inlet end of the outer peripheral wall is advanced by an angle ⁇ between 5 ° and 50 ° relative to the 0 ° / 360 ° position, the peripheral wall forming an arc in this angular range.
  • the machine shown is shown for the sake of simplicity with only one delivery chamber 6 and only one displacer. It goes without saying, however, that the displacer can have a whole system of spirals in the same plane, which can, for example, convey each from its own inlet 2 into a common outlet 3.
  • the disk-shaped rotor is designated as a whole by 1.
  • Spiral displacement bodies 5 are arranged on one or on both sides of the disk 4. These engage in a delivery chamber 6 of the fixed housing 7 and seal against it via sealing strips 14 inserted into the end wall.
  • the delivery chamber 6 is, for example, incorporated into the housing 7 in the manner of a spiral slot. It runs from an inlet 2 arranged on the outer circumference of the spiral in the housing to an outlet 3 arranged inside the housing. It has essentially parallel circumferential walls 8, 9 which are arranged at a constant distance from one another and which, like the displacement body, have a spiral of more than this than include 360 °.
  • the displacement body 5 is guided between these circumferential walls 8, 9.
  • the spiral shape of the delivery chamber and displacement body is made up of quarter-circle arches.
  • the eccentric drive of the disk-shaped rotor 1 carrying the displacement body 5 results in a circular movement of each of the points of the displacement body, this circular movement being limited by the peripheral walls of the delivery chamber.
  • crescent-shaped working spaces 12 which enclose the working medium, result on both sides of the displacement body, which on the occasion of the circular movement of the displacement body through the delivery space in Towards the outlet. The volume of these working spaces is reduced and the pressure of the working fluid increases accordingly.
  • the displacement body 5 is in the 0 ° / 360 ° position, i.e. it forms a sealing line with the outer peripheral wall 9 in the inlet area. Line because the peripheral walls 8, 9 and the displacer 5 extend perpendicular to the plane of the drawing.
  • the suction process has ended and the crescent-shaped working space 12 is composed of the three partial areas A, B and C.
  • the invention is based on this finding.
  • the displacer 5 is rounded at its leading edge in terms of flow, here semicircularly with the radius R1.
  • the center of the semicircle is the geometric location that rotates on the dashed circle of eccentrics.
  • the displacement position according to FIG. 3 represents the starting position, i.e. the suction cycle begins. It is the displacement position, as it is also shown in Fig. 1 and which is defined as a 180 ° position.
  • the displacer forms a sealing line with the inner circumferential wall 8 and the upper conveying chamber is opened towards the inlet 2 with the fully available cross section.
  • Fig. 6 the opposite 0 ° / 360 ° position is shown.
  • the displacer 5 bears against the outer peripheral wall 9. In this position, the suction process is complete without the new measure.
  • the closing edge 13 is advanced by the angle ⁇ relative to the plane which marks the 0 ° / 360 ° position. 5, the first sealing line occurs considerably earlier on the occasion of the circular movement of the displacer 5 compared to the conventional case.
  • the suction process is therefore ended earlier.
  • the volume enclosed in the working space 12 is, in view of the explanations relating to FIG. 2, greater than that which is shown in FIG. 6. That means nothing else than that the desired compression process starts earlier. For this, however, it is necessary that from the closing point 13 to 0 ° position perma is not sealed so that there is no backflow from the working space 12 into the inlet 2.
  • radius R2 is a function of the displacer leading edge. If the displacement body 5 were terminated with a sharp edge, the radius R2 would correspond to the eccentricity e. In the example shown with a semicircular end, the radius R2 corresponds to the sum of the radii R1 of the semicircle and e to the eccentricity.
  • the displacer position according to Fig. 4, i.e. 270 ° position, is only intended to show that the new measure does not really impair the inlet flow cross-section. Furthermore, it goes without saying that the closing edge 13 does not have to be sharp-edged per se. A possibly more favorable flow-wise transition of the circular arc 9 'to the channel wall of the inlet 2 is easily conceivable.
  • the spiral section under consideration on the outer circumferential wall 9, of which only the first 360 ° of the overall wrap is essential - the section that comprises the crescent-shaped working space 12 after the suction has ended is composed of two semicircles with the radii 68 mm and 52 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Screw Conveyors (AREA)
  • Reciprocating Pumps (AREA)
EP88120415A 1987-12-21 1988-12-07 Machine de déplacement de fluide du type à volute Expired - Lifetime EP0321782B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88120415T ATE67273T1 (de) 1987-12-21 1988-12-07 Rotationskolben-verdraengungsmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4981/87 1987-12-21
CH4981/87A CH673679A5 (fr) 1987-12-21 1987-12-21

Publications (2)

Publication Number Publication Date
EP0321782A1 true EP0321782A1 (fr) 1989-06-28
EP0321782B1 EP0321782B1 (fr) 1991-09-11

Family

ID=4285885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120415A Expired - Lifetime EP0321782B1 (fr) 1987-12-21 1988-12-07 Machine de déplacement de fluide du type à volute

Country Status (7)

Country Link
US (1) US4997348A (fr)
EP (1) EP0321782B1 (fr)
JP (1) JPH01200085A (fr)
AT (1) ATE67273T1 (fr)
CH (1) CH673679A5 (fr)
DE (1) DE3864805D1 (fr)
ES (1) ES2026245T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545190A1 (fr) * 1991-12-05 1993-06-09 AGINFOR AG für industrielle Forschung Machine de déplacement de fluide de type à spirale
EP0899423A1 (fr) * 1997-08-26 1999-03-03 SIG Schweizerische Industrie-Gesellschaft Machine de déplacement de fluide du type à spirale

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5395222A (en) * 1989-11-02 1995-03-07 Matsushita Electric Industrial Co., Ltd. Scroll compressor having recesses on the scroll wraps
JPH04140492A (ja) * 1990-10-01 1992-05-14 Toshiba Corp ガス圧縮装置
CN103511293B (zh) * 2013-10-14 2016-05-18 黄少平 一种空气动力增能器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2034409A (en) * 1978-09-21 1980-06-04 Ingersoll Rand Co Rotary positive-displacement fluid-machines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR48616E (fr) * 1936-12-23 1938-04-19 Perfectionnements au capsulisme à excentrique
CH586348A5 (fr) * 1975-02-07 1977-03-31 Aginfor Ag
DE3138585A1 (de) * 1981-09-29 1983-07-21 Volkswagenwerk Ag, 3180 Wolfsburg Verdraengermaschine fuer kompressible medien
JPS58172405A (ja) * 1982-04-05 1983-10-11 Hitachi Ltd スクロ−ル流体機械

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2034409A (en) * 1978-09-21 1980-06-04 Ingersoll Rand Co Rotary positive-displacement fluid-machines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 9 (M-268)[1446], 14. Januar 1984; & JP-A-58 172 405 (HITACHI SEISAKUSHO K.K.) 11-10-1983 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545190A1 (fr) * 1991-12-05 1993-06-09 AGINFOR AG für industrielle Forschung Machine de déplacement de fluide de type à spirale
EP0899423A1 (fr) * 1997-08-26 1999-03-03 SIG Schweizerische Industrie-Gesellschaft Machine de déplacement de fluide du type à spirale

Also Published As

Publication number Publication date
CH673679A5 (fr) 1990-03-30
JPH01200085A (ja) 1989-08-11
US4997348A (en) 1991-03-05
DE3864805D1 (de) 1991-10-17
EP0321782B1 (fr) 1991-09-11
ATE67273T1 (de) 1991-09-15
ES2026245T3 (es) 1992-04-16

Similar Documents

Publication Publication Date Title
DE69022413T2 (de) Auslassventil für Spiralkompressor.
DE69202399T2 (de) Strömungsmaschine in Spiralbauweise.
DE2450418A1 (de) Drehkolbenmaschine
DE4330609A1 (de) Rotationskolbenmaschine in Spiralbauweise
DE2954135C2 (de) Verdrängerpumpe, insbesondere für Servoeinrichtungen in Kraftfahrzeugen
DE3312280A1 (de) Spiral-stroemungsvorrichtung
CH673135A5 (fr)
EP0284774B1 (fr) Machine à déplacement du type à spirale
EP0899423A1 (fr) Machine de déplacement de fluide du type à spirale
EP0321782B1 (fr) Machine de déplacement de fluide du type à volute
EP0116356B1 (fr) Moteur à pistons rotatifs
DE3401589A1 (de) Verdichter
DE102011121365A1 (de) Scrollverdichter mit axial verschiebbarer Scrollspirale
EP0275415B1 (fr) Machine à déplacement pour fluides compressibles
DE3514230A1 (de) Vorrichtung zum steuern einer rotationskolbenmaschine
DE1551085A1 (de) Stroemungsmaschine
DE3216146A1 (de) Verdraengermaschine fuer kompressible medien
DE102007043674B4 (de) Spiralverdichter mit Doppelspirale
DE19500774A1 (de) Rotationskolbenmaschine
EP2195511B1 (fr) Machine de refoulement à spirales
DE69284C (de) Kraftmaschine mit kreisendem Kolben und beweglichen Flügeln
DE10217228C1 (de) Flügelzellenmaschine für ein dampf- oder gasförmiges Arbeitsmedium
DE2229532C3 (de) Drehkolbenmaschine
CH578677A5 (en) Rotating hydraulic motor with rotor and vanes - has curved vanes able to slide within curved guides within rotor
DE1703256A1 (de) Hydraulische oder pneumatische Maschine

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): AT CH DE ES FR GB IT LI NL

17P Request for examination filed

Effective date: 19891211

17Q First examination report despatched

Effective date: 19900504

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB IT LI NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19910911

REF Corresponds to:

Ref document number: 67273

Country of ref document: AT

Date of ref document: 19910915

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3864805

Country of ref document: DE

Date of ref document: 19911017

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2026245

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19921112

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19921116

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19921126

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19921217

Year of fee payment: 5

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: AGINFOR AG FUER INDUSTRIELLE FORSCHUNG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19931207

Ref country code: AT

Effective date: 19931207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19931209

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19931207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19940831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010301

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20011120

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011208

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030701

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051207