Working machine
US9592733B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2015 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Oct 29, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Y2200/412
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A working machine comprising: a ground engaging structure with a first and second axle, each mounting two wheels; a body supported on the ground engaging structure, a working arm mounted to the body; and a drive arrangement for moving the ground engaging structure to propel the working machine, the drive arrangement including a prime mover and transmission. The transmission comprises a hydraulic pump driven by the prime mover, a first high speed hydraulic motor to drive the first axle to permit the working machine to be driven at relatively high speeds in a first two-wheel drive operating mode, and a second low speed motor to be supplied with hydraulic fluid from the hydraulic pump to drive the second axle at relatively low speeds and configured to be driven in conjunction with the first motor in a second four-wheel drive operating mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.