IT1134772B - MULTI-STAGE ROTARY PISTON PUMP - Google Patents

MULTI-STAGE ROTARY PISTON PUMP

Info

Publication number: IT1134772B
Authority: IT; Italy
Prior art keywords: piston pump; rotary piston; stage rotary; stage; pump
Prior art date: 1979-12-21

Application number

IT26735/80A

Other languages

Italian (it)

Other versions

IT8026735A0 (en

Inventor

Juergen Steinmuller

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

1980-12-18

Publication date

1986-08-13

1980-12-18 Application filed by Pfeiffer Vakuumtechnik filed Critical Pfeiffer Vakuumtechnik

1980-12-18 Publication of IT8026735A0 publication Critical patent/IT8026735A0/en

1986-08-13 Application granted granted Critical

1986-08-13 Publication of IT1134772B publication Critical patent/IT1134772B/en

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)

IT26735/80A 1979-12-21 1980-12-18 MULTI-STAGE ROTARY PISTON PUMP IT1134772B (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
IT8026735A0 IT8026735A0 (en)	1980-12-18
IT1134772B true IT1134772B (en)	1986-08-13

Family

ID=6089179

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT26735/80A IT1134772B (en)	1979-12-21	1980-12-18	MULTI-STAGE ROTARY PISTON PUMP

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	A mute blower working with high air-presser
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 BR BR8008319A patent/BR8008319A/en unknown
- 1980-12-18 IT IT26735/80A patent/IT1134772B/en active
- 1980-12-19 ZA ZA00807955A patent/ZA807955B/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
- 1980-12-22 JP JP18181380A patent/JPS56132489A/en active Pending
- 1980-12-22 CH CH9441/80A patent/CH650562A5/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
CH650562A5 (en)	1985-07-31
NL8002614A (en)	1981-07-16
GB2065776A (en)	1981-07-01
JPS56132489A (en)	1981-10-16
FR2472094B1 (en)	1987-07-10
IT8026735A0 (en)	1980-12-18
FR2472094A1 (en)	1981-06-26
AU6554980A (en)	1981-06-25
GB2065776B (en)	1984-05-02
ZA807955B (en)	1982-02-24
AR223087A1 (en)	1981-07-15
BR8008319A (en)	1981-07-07
DE2951591A1 (en)	1981-07-02
AU543259B2 (en)	1985-04-18

Publication	Publication Date	Title
IT1221055B (en)	1990-06-21	PISTON PUMP, RESPECTIVELY DIFFERENT PISTON
IT8047571A0 (en)	1980-01-11	RADIAL PISTON PUMP
IT7867991A0 (en)	1978-05-02	MANUALLY DRIVEN AXIAL PISTON PUMP
IT1140114B (en)	1986-09-24	ROTARY PISTON PUMP WITH PRESSURE BALANCING CHAMBER
IT1175828B (en)	1987-07-15	PISTON PUMP
IT7819060A0 (en)	1978-01-06	ROTARY PISTON COMPRESSOR.
IT1191228B (en)	1988-02-24	OSCILLATING PISTON PUMP
IT1061524B (en)	1983-04-30	PISTON PUMP
IT1142652B (en)	1986-10-15	RADIAL PISTON PUMP
IT7869654A0 (en)	1978-11-21	ROTATING PISTON PUMP OR MOTOR
IT7950778A0 (en)	1979-11-08	PISTON PUMP ESPECIALLY RADIAL PISTON PUMP
IT1134772B (en)	1986-08-13	MULTI-STAGE ROTARY PISTON PUMP
IT1205388B (en)	1989-03-15	AXIAL PISTON PUMP
IT1159206B (en)	1987-02-25	RADIAL PISTON PUMP
IT8025154A0 (en)	1980-10-07	PISTON COMPRESSOR.
IT1190838B (en)	1988-02-24	RADIAL PISTON MACHINE, IN PARTICULAR RADIAL PISTON PUMP
IT1181580B (en)	1987-09-30	HYDRAULIC PISTON PUMP, MANUALLY OPERATED
IT983871B (en)	1974-11-11	PISTON PUMP
IT1147368B (en)	1986-11-19	PISTON PUMP
IT1019882B (en)	1977-11-30	ROTARY PISTON HYDRAULIC PUMP
IT1118926B (en)	1986-03-03	RADIAL PISTON PUMP
IT7846841A0 (en)	1978-04-19	ROTARY PISTON INJECTION PUMP
IT1094621B (en)	1985-08-02	VARIABLE FLOW PISTON PUMP
IT1160489B (en)	1987-03-11	HIGH PRESSURE PISTON PUMP
IT7853271V0 (en)	1978-05-02	MANUALLY OPERATED AXIAL PISTON PUMP

Legal Events

Date	Code	Title	Description
1999-10-27	TA	Fee payment date (situation as of event date), data collected since 19931001	Effective date: 19931222