Drive system having an inertial valve
US6782956B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2003 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Mar 7, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B21/026
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drive system having a housing and including a frame supported in the housing and defining an axis. The frame is rotatable about the axis and defines an interior space. A piston supported by the frame is moveable axially in the interior space and is rotatable about the axis. The piston divides the interior space and defines first and second chambers and a plurality of channels communicating between the first and second chambers. An inertial valve is coupled to the piston and is moveable between a first orientation, in which a valve stop is spaced a distance from at least one of the plurality of channels to permit lubricant flow along the at least one of the plurality of channels, and a second orientation, in which the valve stop engages the at least one of the plurality of channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.