EP 3146212 A4 20180425 - VIBRATION-REDUCING STRUCTURE FOR FOUR-COMPRESSION-CHAMBER DIAPHRAGM PUMP
Title (en)
VIBRATION-REDUCING STRUCTURE FOR FOUR-COMPRESSION-CHAMBER DIAPHRAGM PUMP
Title (de)
SCHWINGUNGSDÄMPFENDE STRUKTUR FÜR MEMBRANPUMPE MIT VIER KOMPRESSIONSKAMMERN
Title (fr)
STRUCTURE DE RÉDUCTION DES VIBRATIONS POUR POMPE À DIAPHRAGME À QUATRE CHAMBRES DE COMPRESSION
Publication
Application
Priority
- US 201462000622 P 20140520
- US 2015028127 W 20150429
Abstract (en)
[origin: WO2015179085A1] A vibration-reducing structure for compressing diaphragm pump features a pump head body and a diaphragm membrane. The pump head body includes four operating holes, a first curved vibration-reducing positioning structure circumferentially disposed around the upper side of each operating hole, and or a linked four-curve positioning structure that collectively extends around all of the operating holes. The diaphragm membrane includes four equivalent piston acting zones and second curved vibration-reducing position structures situated at positions corresponding to the positions of the first curved vibration-reducing positioning structures. The first positioning structures in the pump head body, which may be grooves, slots, perforations, or protrusions, mate with the corresponding second positioning structures in the diaphragm membrane to reduce the moment arm generated during pumping by movement of the diaphragm membrane, which may be protrusions, grooves, slots, or perforations, thereby generating less torque to decrease the strength of vibrations and vibration noise.
IPC 8 full level
F04B 43/067 (2006.01)
CPC (source: EP US)
F04B 3/00 (2013.01 - US); F04B 17/03 (2013.01 - US); F04B 43/0054 (2013.01 - EP US); F04B 43/021 (2013.01 - EP US); F04B 43/14 (2013.01 - EP US); F04B 53/001 (2013.01 - EP US); F04B 53/003 (2013.01 - US); F04B 53/10 (2013.01 - EP US); F04B 53/14 (2013.01 - US); F04B 53/16 (2013.01 - US)
Citation (search report)
- [E] WO 2015108685 A1 20150723 - CAI YING LIN [CN], et al
- [IP] CN 203770097 U 20140813 - CAI YINGLIN, et al
- [I] US 4610605 A 19860909 - HARTLEY E DALE [US]
- [I] GB 1111770 A 19680501 - ALTEC GES FUR ALLG LANDTECHNIK
- See references of WO 2015179085A1
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
DOCDB simple family (publication)
WO 2015179085 A1 20151126; EP 3146212 A1 20170329; EP 3146212 A4 20180425; US 2015337832 A1 20151126
DOCDB simple family (application)
US 2015028127 W 20150429; EP 15796730 A 20150429; US 201514699101 A 20150429