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1. (WO1998053208) RECIPROCATING DIAPHRAGM PUMP WITH PACKLESS PISTON-CYLINDER UNIT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/053208 International Application No.: PCT/EP1998/002766
Publication Date: 26.11.1998 International Filing Date: 12.05.1998
Chapter 2 Demand Filed: 16.12.1998
IPC:
F04B 13/00 (2006.01) ,F04B 23/06 (2006.01) ,F04B 53/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
13
Pumps specially modified to deliver fixed or variable measured quantities
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
23
Pumping installations or systems
04
Combinations of two or more pumps
06
the pumps being all of reciprocating positive-displacement type
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
53
Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/-F04B23/ or F04B39/-F04B47/203
Applicants:
LANG APPARATEBAU GMBH [DE/DE]; Raiffeisenstrasse 7 D-83309 Siegsdorf, DE (AllExceptUS)
HUNKLINGER, Herbert [DE/DE]; DE (UsOnly)
RUTZ, Klaus [DE/DE]; DE (UsOnly)
Inventors:
HUNKLINGER, Herbert; DE
RUTZ, Klaus; DE
Agent:
WACKER, Manfred; Henkel KGaA Patente (VTP) D-40191 Düsseldorf, DE
Priority Data:
297 08 906.421.05.1997DE
Title (DE) KOLBENMEMBRANPUMPE MIT DICHTUNGSLOSER KOLBEN-ZYLINDEREINHEIT
(EN) RECIPROCATING DIAPHRAGM PUMP WITH PACKLESS PISTON-CYLINDER UNIT
(FR) POMPE A MEMBRANE A PISTON AVEC UNITE PISTON-CYLINDRE SANS GARNITURE
Abstract:
(DE) Bei einer Abdichtung der Kolben-Zylindereinheit (1, 2) von Kolbenmembranpumpen soll eine Lösung geschaffen werden, die bei einfachen Montageverhältnissen eine dauerhaft exakte Abdichtung der Kolben-Zylindereinheit (1, 2) gewährleistet. Dies wird dadurch erreicht, daß eine Kolben-Zylindereinheit (1, 2) verwendet wird, die im Mikrometerbereich ($g(m)m) nahezu spielfrei ist und deren Abdichtung über eine hydrodynamische Abdichtung des Spaltes (3) erfolgt.
(EN) The invention relates to a solution for sealing the piston-cylinder unit (1, 2) of reciprocating diaphragm pumps which ensures that said piston-cylinder unit (1, 2) is permanently and reliably sealed while being simple to assemble. To this end the invention provides for a piston-cylinder unit (1, 2) which presents almost no play in the micrometer ($g(m)m) range and which is sealed by hydrodynamically sealing the slot (3).
(FR) L'invention concerne une solution pour l'étanchéification de l'unité piston-cylindre (1, 2) de pompes à membrane à piston qui garantit, pour des conditions de montage simples, une étanchéification exacte durablement de l'unité piston-cylindre (1, 2). On utilise à cet effet une unité piston-cylindre (1, 2) presque sans jeu dans le domaine des micromètres ($g(m)m) et dont l'étanchéification est réalisée par l'intermédiaire d'une étanchéification hydrodynamique de la fente (3).
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Designated States: AU, NZ, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
EP0983440US6299419NZ501200AU1998079114