Packing sleeve removal feature
US11959476B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2022 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Feb 16, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/183
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid end block for a reciprocating pump defines a fluid chamber and a packing bore. An outlet fluid passage is formed in the fluid end block in communication with the fluid chamber and includes an outlet valve. An inlet fluid passage is formed in the fluid end block in fluid communication with the fluid chamber and includes an inlet valve. A plunger is reciprocally disposed in the packing bore. Packing in the packing bore is positioned to contact the plunger and a packing sleeve is disposed between the packing and the packing bore. The packing sleeve is a hollow cylinder with inner and outer surfaces and an inner end configured to be inserted into the packing bore. The inner end includes a bevel extending between the outer surface and the inner end, the outer surface including a notch formed therein adjacent the inner end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.