Invention Grant
- Patent Title: Hydraulically coupled multi-variator actuator
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Application No.: US14818403Application Date: 2015-08-05
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Publication No.: US09803749B2Publication Date: 2017-10-31
- Inventor: Michael Barngrover
- Applicant: Caterpillar Inc.
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agent Jeffrey A. Greene
- Main IPC: F16H61/433
- IPC: F16H61/433 ; F16H37/08 ; F16H47/04

Abstract:
A system for hydraulically coupled multi-variator actuation is disclosed. One system includes: a first hydraulic variator comprising: a first hydraulic pump; and a first hydraulic motor linked to the first hydraulic pump. The system may further include a second hydraulic variator comprising: a second hydraulic pump; and a second hydraulic motor linked to the second hydraulic pump. The system may further include a first actuator linked to the first hydraulic pump and configured to control a displacement of the first hydraulic pump; a second actuator linked to the second hydraulic pump and configured to control a displacement of the second hydraulic pump; a hydraulic link connecting the first actuator and the second actuator, the hydraulic link configured to facilitate a coordinated operation of the first actuator and the second actuator; a valve disposed in fluid communication with the hydraulic link connecting the first actuator and the second actuator; and a controller connected to the valve and configured to control an operation of the valve to regulate hydraulic flow in the hydraulic link.
Public/Granted literature
- US20170037964A1 Hydraulically Coupled Multi-Variator Actuator Public/Granted day:2017-02-09
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