公开(公告)号：US20230167824A1

公开(公告)日：2023-06-01

申请号：US17905998

申请日：2021-03-09

Applicant: Atlas Copco Airpower N.V.

Inventor： Simon Candries ,  Yun Shi

IPC: F04C25/02 ,  F04B35/04 ,  F04B37/14 ,  F04B49/06 ,  F04C28/08 ,  F04D19/04 ,  F04D27/00 ,  F04D27/02

CPC classification number: F04C25/02 ,  F04B35/04 ,  F04B37/14 ,  F04B49/065 ,  F04C28/08 ,  F04D19/04 ,  F04D27/001 ,  F04D27/004 ,  F04D27/0261 ,  F04B2203/0209 ,  F04C2270/23 ,  F05D2270/3011

Abstract: Repeated cycles each consist of a pump down phase and a holding phase, wherein a start timepoint of each cycle is the timepoint when a rise in an inlet pressure of the pump is sufficiently large and the time extending between two consecutive cycle start timepoints is a cycle time. A control method includes determining a start of a next cycle during a present cycle, wherein it is preferable that the present cycle directly precedes the next cycle. The method further includes controlling the pump to accelerate to a maximum allowed speed during the holding phase of the present cycle before the start of the next cycle such that at the start of the next cycle full pump capacity is available.

公开(公告)号：US12006935B2

公开(公告)日：2024-06-11

申请号：US17905998

申请日：2021-03-09

Applicant: Atlas Copco Airpower N.V.

Inventor： Simon Candries ,  Yun Shi

IPC: F04C25/02 ,  F04B35/04 ,  F04B37/14 ,  F04B49/06 ,  F04C28/06 ,  F04C28/08 ,  F04D19/04 ,  F04D27/00 ,  F04D27/02

CPC classification number: F04C25/02 ,  F04B35/04 ,  F04B37/14 ,  F04B49/065 ,  F04C28/06 ,  F04C28/08 ,  F04D19/04 ,  F04D27/001 ,  F04D27/004 ,  F04D27/0261 ,  F04B2203/0209 ,  F04C2220/10 ,  F04C2270/051 ,  F04C2270/23 ,  F05D2270/3011

Abstract: Repeated cycles each consist of a pump down phase and a holding phase, wherein a start timepoint of each cycle is the timepoint when a rise in an inlet pressure of the pump is sufficiently large and the time extending between two consecutive cycle start timepoints is a cycle time. A control method includes determining a start of a next cycle during a present cycle, wherein it is preferable that the present cycle directly precedes the next cycle. The method further includes controlling the pump to accelerate to a maximum allowed speed during the holding phase of the present cycle before the start of the next cycle such that at the start of the next cycle full pump capacity is available.