Invention Grant
- Patent Title: Drive system for a positive displacement pump
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Application No.: US18537182Application Date: 2023-12-12
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Publication No.: US12253071B2Publication Date: 2025-03-18
- Inventor: Bradley H. Hines , Brian W. Koehn , Jeffrey A. Earles , Paul W. Scheierl , Adam K. Collins
- Applicant: Graco Minnesota Inc.
- Applicant Address: US MN Minneapolis
- Assignee: Graco Minnesota Inc.
- Current Assignee: Graco Minnesota Inc.
- Current Assignee Address: US MN Minneapolis
- Agency: Kinney & Lange, P.A.
- Main IPC: F04B43/02
- IPC: F04B43/02 ; F04B9/02 ; F04B9/04 ; F04B43/04 ; F04B53/14 ; F04B1/14 ; F04B9/117 ; F04B9/137 ; F04B17/03 ; F04B17/04 ; F04B27/10 ; F04B35/01 ; F04B35/04 ; F04B43/06 ; F04B45/047 ; F04B45/053 ; F04B53/10

Abstract:
A drive system for a pump includes a housing and a fluid displacer and a reciprocator configured to mechanically displace the fluid displacer through respective suction strokes. The housing and fluid displacer define an internal pressure chamber configured to be filled with a working fluid having a charge pressure. The internal pressure chamber is configured such that the working fluid exerts the charge pressure on the fluid displacer during both the suction stroke and a pressure stroke of the fluid displacer.
Public/Granted literature
- US20240125313A1 DRIVE SYSTEM FOR A POSITIVE DISPLACEMENT PUMP Public/Granted day:2024-04-18
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