Hydraulic continuously variable transmission
US7062909B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2004 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Jun 12, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H3/14
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic continuously variable transmission with a fixed displacement type swash plate plunger pump and a variable displacement type swash plate plunger motor are connected to each other through a closed hydraulic circuit. A motor pivot member is supported to be pivotally movable in a support member. The motor pivot member includes an upwardly extending arm portion. The tip end of the arm portion is movable in the axial direction by a motor servo mechanism, to pivotally move the motor pivot member. A transmission housing is provided with an auxiliary portion surrounding the motor servo mechanism and the tip of the arm portion, and a servo motor is mounted to a side surface on one end side, in the direction of the axis of rotation of an output shaft. A side of the housing auxiliary portion, opposite the servo motor, includes an identification number display portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.