CONSTRUCTION MACHINE
DE602020068158T2Active Publication Date: 2026-03-04HITACHI CONSTRUCTION MACHINERY CO LTD
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Patent Information
- Application Number
- DE602020068158
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-10-03
- Filing Date
- 2020-09-30
- Publication Date
- 2026-03-04
- Estimated Expiration
- 2040-09-30
AI Technical Summary
Technical Problem
Applying the hydraulic circuit configuration from Patent Document 1 to a loading excavator requires complex lever inputs for horizontal bucket pushing, increasing operator burden during excavation operations.
Method used
A construction machine with a hydraulic drive system featuring bidirectionally tiltable hydraulic pumps and a controller that adjusts flow rates to form closed circuits, allowing for efficient energy recovery and simplified linear bucket pushing by controlling the boom and arm movements through a bucket locus selecting device.
Benefits of technology
Enables operators to perform linear bucket pushing with reduced complexity, mitigating operator burden and enhancing excavation efficiency by optimizing hydraulic fluid flow rates and energy recovery.
✦ Generated by Eureka AI based on patent content.
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