PTO lube control system
US8408363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2010 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Sep 6, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H57/0435
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The PTO assembly includes an engine driven input shaft, an output shaft, a transmission, a disconnect unit for selectively coupling and uncoupling the input shaft from the transmission and a clutch for coupling an uncoupling the transmission from the output shaft. A lubrication system includes a shaft lube circuit for lubricating the input shaft, a pump, and a lube control valve for controlling communication of lubricant from the pump to the lube circuit. The lube control valve is operatively coupled to the disconnect unit so that when the disconnect unit is engaged the lube control valve blocks communication from the pump to the lube circuit, and when the disconnect unit is disengaged the lube control valve communicates the pump to the lube circuit. The lubrication system also includes a transmission lube circuit for lubrication the transmission. The control valve communicates lubricant to the transmission lube circuit when the disconnect unit is engaged and disengaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.