公开(公告)号：US10539123B2

公开(公告)日：2020-01-21

申请号：US14648135

申请日：2013-10-28

Applicant: Edwards Limited

Inventor： Neil Turner ,  Jack Raymond Tattersall ,  Alan Ernest Kinnaird Holbrook ,  Matthew Richard Wickes

IPC: F04B11/00 ,  F04B37/14 ,  F04B41/06 ,  F04B39/00

Abstract: In situations where a vacuum system is suddenly overloaded, there is a risk of mechanical damage being sustained, for example, bearing damage, gear slippage or rotor and/or stator collisions. Sudden overloads can also lead to electrical damage, for example, over-currents or power surges. Therefore a pressure regulating apparatus is provided for use in a vacuum pumping system having an inlet, an outlet and a conduit interposed between, and in fluid communication with, the inlet and the outlet, wherein the cross-sectional area of the conduit is greater than that required to meet the conductance requirements of the inlet and the outlet.

公开(公告)号：US20150292494A1

公开(公告)日：2015-10-15

申请号：US14648135

申请日：2013-10-28

Applicant: EDWARDS LIMITED

Inventor： Neil Turner ,  Jack Raymond Tattersall ,  Alan Ernest Kinnaird Holbrook ,  Matthew Richard Wickes

IPC: F04B11/00 ,  F04B41/06 ,  F04B37/14 ,  F04B39/00

CPC classification number: F04B11/0091 ,  F04B37/14 ,  F04B39/0055 ,  F04B41/06 ,  F04C18/126 ,  F04C25/02 ,  F04C28/28 ,  F04C29/124

Abstract: In situations where a vacuum system is suddenly overloaded, there is a risk of mechanical damage being sustained, for example, bearing damage, gear slippage or rotor and/or stator collisions. Sudden overloads can also lead to electrical damage, for example, over-currents or power surges. Therefore a pressure regulating apparatus is provided for use in a vacuum pumping system having an inlet, an outlet and a conduit interposed between, and in fluid communication with, the inlet and the outlet, wherein the cross-sectional area of the conduit is greater than that required to meet the conductance requirements of the inlet and the outlet.

Abstract translation: 在真空系统突然超载的情况下，存在持续的机械损坏的风险，例如轴承损坏，齿轮打滑或转子和/或定子碰撞。 突然过载也可能导致电气损坏，例如过电流或电涌。 因此，提供一种用于真空泵送系统的压力调节装置，其具有插入在入口和出口之间并与入口和出口流体连通的入口，出口和导管，其中导管的横截面面积大于 这需要满足入口和出口的电导要求。