Tunnel boring machine

DE102025101666A1Undetermined Publication Date: 2026-07-23HERRENKNECHT AG
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Patent Information

Application Number
DE102025101666
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-07-23

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Abstract

In a tunnel boring machine with a rotating cutterhead, a cutterhead drive (203) is provided, which drives the cutterhead via at least one hydraulic motor (209) to rotate it. Parallel to the hydraulic motor (209), through which a drive fluid flows at a certain pressure, a bypass branch (215) is provided, through which a portion of the drive fluid can be fed to a pressure booster (236) for controlling a control cylinder (121) to align the cutterhead. This allows the control cylinder (121) to be actuated via a relatively short high-pressure line (239).
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Citation Information

Patent Citations

  • Tunnelling machine

    GB1215463A

  • Improvements in braking apparatus for use in colliery and like winding equipment

    GB815375A

  • Hydraulic circuit for small-bore pipe burying device

    JP2004100417A

  • JP002004100417A