Gas fuel circulation device and engine
By installing a monitoring unit between the inner and outer pipes, including a condition monitoring sensor and a cover, the problem of gaseous fuel leakage was solved, and the monitoring and control of the fuel status inside the inner pipe was realized, ensuring safety and reliability.
CN122040476APending Publication Date: 2026-05-15YANMAR HLDG CO LTD
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Patent Information
- Application Number
- CN202511633696.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-11-14
- Filing Date
- 2025-11-10
- Publication Date
- 2026-05-15
AI Technical Summary
Technical Problem
In the prior art, when the condition monitoring sensor protrudes from the inner tube, the gaseous fuel may leak to the outside of the outer tube, making it impossible to effectively monitor and control the state of the gaseous fuel inside the inner tube.
Method used
It adopts a dual-tube structure, with a monitoring unit between the inner and outer tubes, including a status monitoring sensor and a cover. The sensor extends from the inside of the inner tube to the outside of the outer tube and is covered by the cover to monitor the status of the gaseous fuel and prevent leakage.
Benefits of technology
It enables effective monitoring of the gaseous fuel status inside the inner pipe and prevents fuel leakage to the outer pipe, ensuring safe and reliable control.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122040476A_ABST
Abstract
The invention provides a gas fuel circulation device and an engine, and relates to a technology capable of monitoring the state of gas fuel flowing in an inner pipe and preventing the gas fuel from leaking out of an outer pipe. A gas fuel circulation device for an engine that combusts a gas fuel, the gas fuel circulation device being provided with a double tube having: an inner tube through which the gas fuel circulates; and an outer tube disposed with a predetermined gap from the outer peripheral surface of the inner tube. The double pipe is provided with a monitoring unit for monitoring the state of the gaseous fuel. The monitoring unit includes: a state monitoring sensor disposed from the inside of the inner tube to the outside of the outer tube; and a cover portion covering a protruding portion of the condition monitoring sensor protruding from the outer tube.
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