Modular manifold having at least two control modules for controlling operation of at least two hydraulic actuators of an earthmoving machine
US10858806B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2019 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Mar 12, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2267
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A control module for controlling an operation of a hydraulic actuator that is associated with an earthmoving machine includes a body. The body has a spool chamber and a load sensing passageway associated with the spool chamber. The body also has a spool positioned axially, and at least partially, within the spool chamber. The spool is spring-biased by an end cap located at a first end of the body. The body also has a pair of electrohydraulic spool actuators that are located at a second end of the body and operable to axially displace the spool within the spool chamber. The pair of spool actuators are positioned in parallel and disposed adjacent to one another. The body also has an inlet chamber disposed parallel to the spool chamber and in selective fluid communication with the spool chamber via a spool supply passageway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.