Hammer, hammer housing and a method of disassembling a hammer

The hydraulic hammer's innovative housing design containing swivel couplings within its interior addresses the issues of damage and debris entanglement, ensuring easier maintenance and reduced downtime by enabling easier disassembly and integration of a pressure control valve.

WO2026128157A1 Publication Date: 2026-06-18CATERPILLAR INC
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
CATERPILLAR INC
Filing Date
2025-11-13
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Hydraulic hammers face issues with rigid mounts for fluid supply lines getting caught in debris and exposed swivel couplings suffering impact damage, leading to downtime.

⚗Method used

A hammer design with a housing that fully contains swivel couplings within its interior, featuring supply line openings and access points for easy coupling and decoupling, allowing the power cell to be withdrawn with couplings remaining mounted, and incorporating a pressure control valve integrated with the swivel coupling.

🎯Benefits of technology

The solution effectively protects the swivel couplings from impact damage, reduces repair frequency, and facilitates easier maintenance, and facilitates easier maintenance, and enhances operational reliability and reduces downtime, thus improving the hammer's operational efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

A hammer (102) comprising a housing (116) and a power cell. The power cell comprising a reciprocating piston and a fluid system configured to drive the reciprocating piston into an out of engagement with a hammer tool (114). The housing (116) comprising one or more walls defining an interior of the housing (116) in which is disposed the power cell. The hammer (102) further comprising a swivel coupling (160) for coupling a fluid supply line of a work machine to the fluid system of the power cell, wherein the swivel coupling (160) is fully contained within the interior of the housing (116).
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