EP 2126956 A1 20091202 - CONTOURED ELECTRODES FOR AN ELECTROSTATIC GAS PUMP
Title (en)
CONTOURED ELECTRODES FOR AN ELECTROSTATIC GAS PUMP
Title (de)
PROFILIERTE ELEKTRODEN FÜR ELEKTROSTATISCHE GASPUMPE
Title (fr)
ÉLECTRODES PROFILÉES POUR POMPE À GAZ ÉLECTROSTATIQUE
Publication
Application
Priority
- US 2008051722 W 20080122
- US 88620407 P 20070123
Abstract (en)
[origin: US2008175720A1] The present invention achieves high gas flow rates through an electrostatic pump having sharp and blunt electrodes with a corona discharge taking place in the gas gap in between the electrodes. According to certain aspects, the invention comprises a specially shaped blunt electrode that is contoured to maintain a constant or approximately constant distance between the sharp (corona) electrode and the neutralizing surface of the blunt electrode. The contour provides maximum electric field enhancement at the corona electrode and minimizes the electric field at the blunt electrode. This maximizes the non-arcing operating voltage and increases the maximum power output of the corona discharge. The contour also isolates neighboring corona electrodes, preventing their electric fields from interfering with one another and making it possible to increase the density of electrodes which further increases the pumping power of the device.
IPC 8 full level
H01J 49/02 (2006.01)
CPC (source: EP KR US)
F04D 33/00 (2013.01 - EP US); H01J 49/02 (2013.01 - KR)
Citation (search report)
See references of WO 2008091905A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2008175720 A1 20080724; CN 101622687 A 20100106; EP 2126956 A1 20091202; JP 2010517241 A 20100520; KR 20090107548 A 20091013; TW 200903558 A 20090116; WO 2008091905 A1 20080731
DOCDB simple family (application)
US 1798608 A 20080122; CN 200880006317 A 20080122; EP 08728095 A 20080122; JP 2009547386 A 20080122; KR 20097017527 A 20080122; TW 97102574 A 20080123; US 2008051722 W 20080122