GB2065776B - Rotary-piston fluid-machines - Google Patents

Rotary-piston fluid-machines

Info

Publication number: GB2065776B
Authority: GB; United Kingdom
Prior art keywords: machines; rotary; piston fluid; piston; fluid
Prior art date: 1979-12-21
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

Application number

GB8034256A

Other versions

GB2065776A (en

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.)

PFEIFFER VAKUUMTECHNIK

Original Assignee

PFEIFFER VAKUUMTECHNIK

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.)

1979-12-21

Filing date

1980-10-23

Publication date

1984-05-02

1980-10-23 Application filed by PFEIFFER VAKUUMTECHNIK filed Critical PFEIFFER VAKUUMTECHNIK

1981-07-01 Publication of GB2065776A publication Critical patent/GB2065776A/en

1984-05-02 Application granted granted Critical

1984-05-02 Publication of GB2065776B publication Critical patent/GB2065776B/en

Status Expired legal-status Critical Current

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/20—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with dissimilar tooth forms

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Applications Or Details Of Rotary Compressors (AREA)
Rotary-Type Compressors (AREA)
Rotary Pumps (AREA)

GB8034256A 1979-12-21 1980-10-23 Rotary-piston fluid-machines Expired GB2065776B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19792951591 DE2951591A1 (en)	1979-12-21	1979-12-21	MULTI-STAGE ROLLING PISTON PUMP

Publications (2)

Publication Number	Publication Date
GB2065776A GB2065776A (en)	1981-07-01
GB2065776B true GB2065776B (en)	1984-05-02

Family

ID=6089179

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB8034256A Expired GB2065776B (en)	1979-12-21	1980-10-23	Rotary-piston fluid-machines

Country Status (11)

Country	Link
JP (1)	JPS56132489A (en)
AR (1)	AR223087A1 (en)
AU (1)	AU543259B2 (en)
BR (1)	BR8008319A (en)
CH (1)	CH650562A5 (en)
DE (1)	DE2951591A1 (en)
FR (1)	FR2472094B1 (en)
GB (1)	GB2065776B (en)
IT (1)	IT1134772B (en)
NL (1)	NL8002614A (en)
ZA (1)	ZA807955B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4232119A1 (en) *	1992-09-25	1994-03-31	Mes Und Regeltechnik Geraeteba	Double shaft vacuum roots pump - has two rotors forming working and control pistons and housing having overflow valve in discharge aperture with excess pressure valves in side parts on pressure socket
GB2282853A (en) *	1993-10-13	1995-04-19	Abertech Ind	Rotary positive displacement pump.
KR100966898B1 (en) *	2008-08-04	2010-06-30	황금택	Noiseless pressurized blower
RU2621457C2 (en) *	2014-10-17	2017-06-06	Валерий Владимирович Мишнаевский	Compressor
DE202017003212U1 (en) *	2017-06-17	2018-09-18	Leybold Gmbh	Multi-stage Roots pump
CN108180143B (en) *	2018-01-25	2021-05-07	曹桂林	Tangent circle rotor pair, compressor and engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR951230A (en) *	1946-07-11	1949-10-19	Roots Connersville Blower Corp	Improvements to rotary pumps
CH350116A (en) *	1955-07-19	1960-11-15	Liquid Controls Corp	Rotary displacement machine for liquid
GB784554A (en) *	1955-08-30	1957-10-09	Clifford Edmund Brewer	Improvements in or relating to rotary motors, compressors or the like
FR1290474A (en) *	1961-04-26	1962-04-13	Rotor Societa Meccanica Italia	Mechanism for determining chambers with adjustable and cyclically variable volume
GB1031991A (en) *	1963-03-04	1966-06-08	Bryan Donkin Co Ltd	Improvements in or relating to apparatus for compressing air or other gas

1979
- 1979-12-21 DE DE19792951591 patent/DE2951591A1/en not_active Withdrawn
1980
- 1980-05-07 NL NL8002614A patent/NL8002614A/en unknown
- 1980-10-23 GB GB8034256A patent/GB2065776B/en not_active Expired
- 1980-12-18 IT IT26735/80A patent/IT1134772B/en active
- 1980-12-18 BR BR8008319A patent/BR8008319A/en unknown
- 1980-12-19 FR FR8027046A patent/FR2472094B1/en not_active Expired
- 1980-12-19 AR AR283735A patent/AR223087A1/en active
- 1980-12-19 AU AU65549/80A patent/AU543259B2/en not_active Ceased
- 1980-12-19 ZA ZA00807955A patent/ZA807955B/en unknown
- 1980-12-22 CH CH9441/80A patent/CH650562A5/en not_active IP Right Cessation
- 1980-12-22 JP JP18181380A patent/JPS56132489A/en active Pending

Also Published As

Publication number	Publication date
NL8002614A (en)	1981-07-16
ZA807955B (en)	1982-02-24
AU6554980A (en)	1981-06-25
FR2472094A1 (en)	1981-06-26
JPS56132489A (en)	1981-10-16
BR8008319A (en)	1981-07-07
GB2065776A (en)	1981-07-01
IT1134772B (en)	1986-08-13
FR2472094B1 (en)	1987-07-10
IT8026735A0 (en)	1980-12-18
AR223087A1 (en)	1981-07-15
DE2951591A1 (en)	1981-07-02
CH650562A5 (en)	1985-07-31
AU543259B2 (en)	1985-04-18

Publication	Publication Date	Title
CS216180A2 (en)	1984-12-14	Zpusob vyroby oplatek
CS375080A2 (en)	1985-08-15	Vstrikovaci cerpadlo
CS486180A2 (en)	1985-09-17	Zpusob vyroby n-fosfonomethylglycinu
CS458380A2 (en)	1985-06-13	Zpusob vyroby tripeptidamidu
CS819480A2 (en)	1985-09-17	Bezpecnostni lyzarske vazani
CS458480A2 (en)	1985-05-15	Zpusob vyroby tripeptidamidu
CS819380A2 (en)	1985-08-15	Deskove bezpecnostni lyzarske vazani
GB2065776B (en)	1984-05-02	Rotary-piston fluid-machines
CS149380A2 (en)	1984-01-16	Zpusob cisteni merkaptobenzothiazolu
CS518580A2 (en)	1984-02-13	Proslupni ustroji tkaciho stroje
GB2019941B (en)	1982-11-17	Rotary-piston fluid-machine
JPS5633291A (en)	1981-04-03	Masterrslave type servoomanipulator
JPS55120992A (en)	1980-09-17	Masterrslave type servoomanipulator
JPS55120993A (en)	1980-09-17	Masterrslave type servoomanipulator
JPS55101388A (en)	1980-08-02	Masterrsleeve type servoomanipulator
GB2043069B (en)	1983-05-11	Basic thio-indazoles
GB2062455B (en)	1983-05-18	Case
JPS5633289A (en)	1981-04-03	Masterrslave type servoomanipulator
JPS5633290A (en)	1981-04-03	Masterrslave type servoomanipulator
JPS55101387A (en)	1980-08-02	Masterrsleeve type servoomanipulator
JPS55106109A (en)	1980-08-14	Asseble type rucksuck
CS634381A1 (en)	1984-11-19	Zpusob ziskani esteru
CS175679A2 (en)	1985-06-13	Vodovaha
CA44955S (en)	1979-02-05	Citruspress
CA45704S (en)	1979-07-23	Citruspress

Legal Events

Date	Code	Title	Description
1996-06-19	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19951023