18438987. Fuel Cell System simplified abstract (Yanmar Holdings Co., Ltd.)

Fuel Cell System

Organization Name

Yanmar Holdings Co., Ltd.

Inventor(s)

Takehiro Maruyama of Osaka (JP)

Shinichiro Matsui of Osaka (JP)

Takuya Hiraiwa of Osaka (JP)

Manabu Shinagawa of Osaka (JP)

Fumiaki Yukizane of Osaka (JP)

Naoki Teraguchi of Osaka (JP)

Takahiro Kubo of Osaka (JP)

Yusuke Marutani of Osaka (JP)

Fuel Cell System - A simplified explanation of the abstract

This abstract first appeared for US patent application 18438987 titled 'Fuel Cell System

The abstract describes a fuel cell system that includes a fuel cell module with a fuel cell stack, a fuel gas system supplying fuel gas to the stack, block valves for controlling the gas flow, a vent system branching from the gas system, and a bleed valve for pressure reduction control.

• The system includes a fuel cell module with a fuel cell stack.
• A fuel gas system supplies fuel gas to the fuel cell stack.
• Block valves control the flow of fuel gas in the system.
• A vent system branches from the fuel gas system.
• A bleed valve is used for pressure reduction control when stopping the operation of the fuel cell stack.

Potential Applications: - This technology can be used in various fuel cell applications, including automotive, stationary power generation, and portable electronics. - It can also be applied in backup power systems for telecommunications and data centers.

Problems Solved: - The system efficiently controls the pressure in the fuel cell stack during operation and shutdown. - It ensures safe and reliable operation of the fuel cell system by preventing overpressure situations.

Benefits: - Improved safety and reliability in fuel cell systems. - Enhanced control over pressure levels for optimal performance. - Increased efficiency and longevity of fuel cell stacks.

Commercial Applications: Title: "Advanced Pressure Control System for Fuel Cell Applications" This technology can be commercialized for use in automotive fuel cell vehicles, stationary power generation systems, and portable fuel cell devices. The market implications include increased adoption of fuel cell technology in various industries due to improved safety and performance.

Questions about Fuel Cell Pressure Control: 1. How does the pressure reduction control system in this fuel cell technology improve safety and efficiency? 2. What are the potential market opportunities for commercializing this advanced pressure control system in fuel cell applications?

Original Abstract Submitted

A fuel cell system includes: a fuel cell module having a fuel cell stack; a fuel gas system that supplies a fuel gas to the fuel cell stack; an upstream-side block valve and a downstream-side block valve that open and close the fuel gas system; a vent system that is provided to branch from the fuel gas system between the upstream-side block valve and the downstream-side block valve; and a bleed valve that opens and closes the vent system. When an operation of the fuel cell stack is to be stopped, pressure reduction control, in which the bleed valve is opened after the upstream-side block valve is closed, and then the downstream-side block valve is closed after a predetermined time has elapsed, is performed.