EP 1611354 A1 20060104 - RECIPROCATING PISTON ENGINE
Title (en)
RECIPROCATING PISTON ENGINE
Title (de)
HUBKOLBENMASCHINE
Title (fr)
MACHINE A PISTON ELEVATEUR
Publication
Application
Priority
- EP 2004001390 W 20040213
- DE 10312898 A 20030322
Abstract (en)
[origin: WO2004083638A1] The invention relates to a reciprocating piston engine comprising at least one membrane (1) produced from an elastomeric material and an oscillating reciprocating drive that acts on a center zone (3) of the membrane (1). Between the center zone (3) of the membrane and its circumferential edge zone (5) a membrane zone (M) is provided that is deformed during the oscillating pumping movements. The inventive reciprocating piston engine is inter alia characterized in that the work and/or auxiliary membrane (1), in its deformable membrane zone, is provided with at least two cantilever-type annular zones (7, 8) that merge into each other in a reduction of cross-section (9) of the membrane (1) and in that the membrane cross-section, starting from the reduction of cross-section (9), enlarges in the annular zones (7, 8). The membrane of the inventive reciprocating piston engine is very durable and functions with little noise.
IPC 1-7
IPC 8 full level
F04B 43/00 (2006.01)
CPC (source: EP US)
F04B 43/0054 (2013.01 - EP US)
Citation (search report)
See references of WO 2004083638A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 2004083638 A1 20040930; DE 10312898 A1 20041007; EP 1611354 A1 20060104; US 2006201324 A1 20060914
DOCDB simple family (application)
EP 2004001390 W 20040213; DE 10312898 A 20030322; EP 04710821 A 20040213; US 55043305 A 20050921