Well service pumping assembly
US5246355A · kind A · utility
44Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1992 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | Jul 10, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B1/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pair of well service pumps are mounted on a trailer or skid or bob tail truck chassis in a back-to-back configuration. Each pump has a housing with a cylinder within which a plunger is reciprocally moved. A crankshaft mounts rotatably in the housing perpendicular to the cylinder. The connecting rod connects the crankshaft to a crosshead of the plunger. The axis of rotation of the crankshaft is offset from the cylinder axis. One of the pumps is inverted relative to the other pump so that its offset is the same but in the Opposite direction. The pumps are rotated in the same direction by prime movers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.