Self lubricating pump
US8092193B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2009 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | Aug 7, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A self-lubricating water-cooled piston-style water pump has a unitary pump housing with a crankcase in direct water communication with the water pump inlet. A low pressure chamber is in direct water communication with the crankcase. A compression chamber is in direct pressurized water communication with a high pressure water manifold through a one-way valve. A high pressure water pump outlet extends outwardly from the manifold to the exterior of the housing. A crankshaft is connected to a connecting rod and a plunger rod, both of which are lubricated and water-cooled in the crankcase. A compression plunger has water channels therethrough connected to the plunger rod and in water communication with the low pressure chamber. The plunger is reciprocal within the compression chamber. A second one-way valve is on the plunger in the compression chamber to let water into the compression chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.