公开(公告)号：US20180030990A1

公开(公告)日：2018-02-01

申请号：US15546935

申请日：2016-01-21

Applicant: Edwards Limited

Inventor： Oliver James Rudge ,  Emiliano Lucchetta

IPC: F04D29/063 ,  F16N7/36 ,  F16C33/66 ,  F16C19/06 ,  F16C27/04 ,  F04D29/059 ,  F16C3/02

CPC classification number: F04D29/063 ,  F04D19/042 ,  F04D29/053 ,  F04D29/059 ,  F16C3/02 ,  F16C19/06 ,  F16C27/045 ,  F16C33/6648 ,  F16C33/6666 ,  F16C33/6685 ,  F16C2300/34 ,  F16C2360/45 ,  F16N7/36 ,  F16N7/366

Abstract: A pump lubricant supply system has a lubricant reservoir and at least one contactor to engage a lubricant transfer device provided on a rotor shaft of a pump to transfer lubricant from the lubricant reservoir to the lubricant transfer device via the at least one contactor. The lubricant reservoir includes at least a first reservoir portion formed of a first elongate strip of porous material wound to define a first lubricant container body having a longitudinal axis that extends transverse to the longitudinal axis of the elongate strip.

公开(公告)号：US12092119B2

公开(公告)日：2024-09-17

申请号：US17608326

申请日：2020-04-27

Applicant: Edwards Limited

Inventor： Emiliano Lucchetta

IPC: F04D19/04 ,  F04D29/059 ,  F04D17/16 ,  F04D29/058 ,  F04D29/063

CPC classification number: F04D19/042 ,  F04D29/059 ,  F04D17/168 ,  F04D29/058 ,  F04D29/063 ,  F16C2360/45

Abstract: Lubricant supply system comprising a lubricant container body defining a lubricant reservoir wherein the lubricant container body comprising an indentation of through-hole to receive a lubricant transfer device of a vacuum pump. Therein, the indentation of through-hole is surrounded by a collar extending from the lubricant container body.

公开(公告)号：US20230313804A1

公开(公告)日：2023-10-05

申请号：US17766631

申请日：2020-10-05

Applicant: Edwards Limited

Inventor： Emiliano Lucchetta

IPC: F04D19/04 ,  F04D29/058 ,  F04D29/057

CPC classification number: F04D19/048 ,  F04D29/057 ,  F04D29/058 ,  F04D19/042

Abstract: A vacuum pump and method of mounting a shaft within a vacuum pump is disclosed. The vacuum pump comprises a rotor and a stator. The rotor comprises a shaft comprising pumping elements extending therefrom. The shaft is mounted to rotate and is supported by a plurality of bearings, the plurality of bearings comprising: an axial magnetic bearing and two radial bearings, at least one of the two radial bearings comprising a gas foil bearing.

公开(公告)号：US20210372421A1

公开(公告)日：2021-12-02

申请号：US17288289

申请日：2019-10-23

Applicant: Edwards Limited

Inventor： Paul Milner ,  Nicolas Jonathan Grant ,  Emiliano Lucchetta

IPC: F04D29/063 ,  F04D19/04 ,  F04D29/059

Abstract: An oil feed assembly for a vacuum pump comprises: an oil feeder located for feeding oil to one side of a bearing of the vacuum pump; an oil sump located on the one side of the bearing and configured to receive excess oil from the oil feeder; and a venting bypass conduit fluidly coupled with the oil sump and with another side of the bearing, the venting bypass conduit having an inlet located at an elevated position above a floor of the oil sump and configured to convey gas from the oil sump to the another side of the bearing. In this way, the venting bypass conduit provides an alternative path which allows gas within the oil sump to escape during pump-down while preventing oil within the oil sump from escaping with the gas travelling through the venting bypass conduit.

公开(公告)号：US10400777B2

公开(公告)日：2019-09-03

申请号：US15546935

申请日：2016-01-21

Applicant: Edwards Limited

Inventor： Oliver James Rudge ,  Emiliano Lucchetta

IPC: F16C3/02 ,  F16N7/36 ,  F04D19/04 ,  F16C19/06 ,  F16C27/04 ,  F16C33/66 ,  F04D29/053 ,  F04D29/059 ,  F04D29/063

Abstract: A pump lubricant supply system has a lubricant reservoir and at least one contactor to engage a lubricant transfer device provided on a rotor shaft of a pump to transfer lubricant from the lubricant reservoir to the lubricant transfer device via the at least one contactor. The lubricant reservoir includes at least a first reservoir portion formed of a first elongate strip of porous material wound to define a first lubricant container body having a longitudinal axis that extends transverse to the longitudinal axis of the elongate strip.

公开(公告)号：US10190594B2

公开(公告)日：2019-01-29

申请号：US14786075

申请日：2014-04-22

Applicant: Edwards Limited

Inventor： Andrew Waye ,  Emiliano Lucchetta

IPC: F04D29/063 ,  F04D19/04 ,  F04D29/059 ,  F04D29/058 ,  F16C33/66 ,  F16C19/06

Abstract: The present disclosure relates to a vacuum pump including a bearing and a lubricant supply system for lubricating the bearing. The lubricant supply system includes: a lubricant reservoir comprising a reservoir matrix for receiving a lubricant; a lubricant transfer arrangement in contact with the reservoir matrix for transferring lubricant from the reservoir matrix to the bearing, the lubricant reservoir including a reservoir enclosure for locating the reservoir matrix in position relative to the lubricant transfer arrangement; wherein the lubricant reservoir includes a plurality of contact regions at which the reservoir matrix is in contact with the reservoir enclosure for locating the reservoir matrix in position relative to the lubricant transfer arrangement and a plurality of spacing regions between respective contact regions at which the reservoir matrix is spaced apart from the reservoir enclosure for receiving gas and lubricant foam caused by outgassing in the lubricant in the reservoir matrix.