EP 3504439 A1 20190703 - DIAPHRAGM PUMP HAVING A POROUS, ARCHED ALUMINUM FILTER
Title (en)
DIAPHRAGM PUMP HAVING A POROUS, ARCHED ALUMINUM FILTER
Title (de)
MEMBRANPUMPE MIT PORÖSEM, GEWÖLBTEM ALUMINIUMFILTER
Title (fr)
POMPE À MEMBRANE DOTÉE D'UN FILTRE EN ALUMINIUM CINTRÉ ET POREUX
Publication
Application
Priority
- DE 102016216012 A 20160825
- EP 2017071089 W 20170822
Abstract (en)
[origin: WO2018036995A1] The invention relates to a diaphragm pump for fluidizing, pressurizing, and conveying products in the form of dust, such as coal dust, by means of inert gas having pressures of up to 7 MPa, which diaphragm pump has a porous, arched loosening element made of aluminum and optionally a dual diaphragm. In the case of the diaphragm pump according to the invention having said loosening element, it is ensured that fluidizing gas is supplied and distributed uniformly in the lower region of the dust pump. The invention permits structural design of the dust chamber, the contour of which dust chamber is particularly advantageously adapted to the deflection of the diaphragm and possibly to the guide rod of the diaphragm. Uniform and reversible deformation of the diaphragm with as little wear as possible is thereby achieved. After the discharge operation of the diaphragm pump has ended, largely planar contact of the diaphragm (3) on the arched, half-shell-shaped loosening surface (5) can be achieved. By means of this advantageous embodiment, a small dead volume can be achieved, leading to a minimal dust chamber volume (10) together with a high delivery rate and a small high-pressure gas loss.
IPC 8 full level
F04B 43/02 (2006.01); F04B 43/06 (2006.01); F04B 43/073 (2006.01)
CPC (source: EP US)
F04B 43/02 (2013.01 - EP US); F04B 45/04 (2013.01 - US); F04B 45/053 (2013.01 - US); F04B 53/20 (2013.01 - US)
Citation (search report)
See references of WO 2018036995A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102016216012 A1 20180301; CN 109790831 A 20190521; CN 109790831 B 20200814; EP 3504439 A1 20190703; EP 3504439 B1 20210217; US 11215174 B2 20220104; US 2021293235 A1 20210923; WO 2018036995 A1 20180301
DOCDB simple family (application)
DE 102016216012 A 20160825; CN 201780058413 A 20170822; EP 17761041 A 20170822; EP 2017071089 W 20170822; US 201716327584 A 20170822