公开(公告)号：US20220032217A1

公开(公告)日：2022-02-03

申请号：US17389643

申请日：2021-07-30

申请人： Donaldson Company, Inc.

发明人： Kurt B. Joscher ,  Mark C. Shepherd ,  Brent T. Harrold ,  Michael S. Courneya

IPC分类号： B01D35/157 ,  B01D29/31 ,  B01D36/00 ,  B01D17/04 ,  B01D35/30 ,  F16K31/53

摘要： A valve arrangement includes a valve shaft having a fluid flow bore, and valve gear projections or teeth projecting from the valve shaft, constructed and arranged to receive a force to rotate the valve shaft. The valve arrangement can be used in a filter assembly having cartridge projections such as gear teeth to mesh with the teeth on the valve gear.

公开(公告)号：US20230023624A1

公开(公告)日：2023-01-26

申请号：US17862771

申请日：2022-07-12

申请人： Donaldson Company, Inc.

发明人： Michael J. Gustafson ,  Erik P. Anderson ,  Brent T. Harrold ,  Robert A. McGlade ,  John K. Aune

IPC分类号： B01D35/153 ,  B01D27/08 ,  B01D35/30

摘要： A filter cartridge with flow travelling from inside to outside with a flow path in a bottom end cap to enter the cartridge has an anti-drain back valve to prevent cross-contamination to the clean side of the system during filter change-out. The anti-drain back valve moves away from the bottom end cap to allow inlet flow into the cartridge during filtering operation, and when flow ceases, the valve settles to the bottom of the cartridge to plug the flow path during service.