<p>A pair of Northey rotors for a vacuum pump, in which each rotor comprises two opposing, substantially parallel faces, and a peripheral surface located between the opposing faces. In order to reduce damage caused by pumping a gas stream containing liquid or solid particulates, a plurality of grooves is located on the peripheral surface for accommodating the particulates.</p>
申请公布号
WO2008129317(A1)
申请公布日期
2008.10.30
申请号
WO2008GB50266
申请日期
2008.04.16
申请人
EDWARDS LIMITED;TURNER, NEIL;GRAY, MALCOLM;TATTERSALL, JACK, RAYMOND
发明人
TURNER, NEIL;GRAY, MALCOLM;TATTERSALL, JACK, RAYMOND