Hydraulic valve module for steering and work functions in a work vehicle
US10822025B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2019 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Sep 18, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B13/0803
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydraulic valve module (2000) for a vehicle (10) is configured to receive hydraulic pressure from a first pump (61) via a first pump inlet (2205) in a first interface surface when connected to a first adjacent module (1000), and from a second pump (62) via an external port (2006). The module (2000) combines both flows to supply a work function circuit (40) of a vehicle via a port (2301) formed in a second interface surface to communicate with a second adjacent module (3000). The module (2000) prioritises flow from the second pump (62) to a steering circuit (50) over the work function circuit, and restricts flow from the first pump (61) to the work function circuit to prioritise and maintain pressure in the first adjacent module upstream of the first pump inlet (2205) which may supply service brake and cooling fan circuits (21, 22, 30) of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.