公开(公告)号：US12196207B2

公开(公告)日：2025-01-14

申请号：US17786051

申请日：2020-12-11

Applicant: Leybold France S.A.S.

Inventor： Christophe Despesse ,  Christian Moulin ,  Frederic Piu ,  Benoit Reynaud ,  Mickael Serayet

IPC: F04C29/02 ,  F04C25/02 ,  F04C28/08

Abstract: A lubricant-sealed vacuum pump configured to pump fluid from an inlet to an exhaust, method and filter are disclosed. The lubricant-sealed vacuum pump comprises: a rotor; a filter for filtering lubricant from fluid to be output by the pump; control circuitry for controlling a speed of rotation of the rotor, the control circuitry being configured to control rotation of the rotor, such that the rotor rotates at a reduced speed initially when a pressure at the inlet is high and rotates at a higher operational speed when the pressure at the inlet has reduced.

公开(公告)号：US20230296096A1

公开(公告)日：2023-09-21

申请号：US17786051

申请日：2020-12-11

Applicant: Leybold France S.A.S.

Inventor： Christophe Despesse ,  Christian Moulin ,  Frederic Piu ,  Benoit Reynaud ,  Mickael Serayet

IPC: F04C29/02 ,  F04C25/02 ,  F04C28/08

CPC classification number: F04C29/026 ,  F04C25/02 ,  F04C28/08 ,  F04C2240/40 ,  F04C2240/81 ,  F04C2270/20

Abstract: A lubricant-sealed vacuum pump configured to pump fluid from an inlet to an exhaust, method and filter are disclosed. The lubricant-sealed vacuum pump comprises: a rotor; a filter for filtering lubricant from fluid to be output by the pump; control circuitry for controlling a speed of rotation of the rotor, the control circuitry being configured to control rotation of the rotor, such that the rotor rotates at a reduced speed initially when a pressure at the inlet is high and rotates at a higher operational speed when the pressure at the inlet has reduced.