Low-pressure pump for hydrogen pumping system

The low-pressure pump system addresses vaporization and instability issues by using a controlled piston and plunger assembly with thermal decoupling, enhancing hydrogen transfer efficiency and stability.

US20260177052A1Pending Publication Date: 2026-06-25FIRSTELEMENT FUEL INC
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
FIRSTELEMENT FUEL INC
Filing Date
2024-12-24
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Existing hydrogen pumping systems face issues such as vaporization of liquid hydrogen due to temperature increases, inefficiencies from mechanical coupling between pumping stages, and instability from vapor migration, leading to system inefficiencies and product loss.

Method used

A low-pressure pump system with a piston assembly, plunger assembly, and controller that manages the sealing and compression of hydrogen using a variable volume compression chamber, along with thermal decoupling and guided rod mechanisms to minimize vaporization and enhance efficiency.

Benefits of technology

The system reduces vaporization, stabilizes the pump, and improves efficiency by controlling the pressure and temperature changes, allowing for efficient hydrogen transfer without venting or product loss.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure US20260177052A1-D00000_ABST
    Figure US20260177052A1-D00000_ABST
Patent Text Reader

Abstract

A hydrogen pumping system includes a low-pressure pump system. The low-pressure pump system includes at least one fluid reservoir, a hydrogen pump cylinder fluidically connected to the at least one fluid reservoir, a piston assembly positioned within the hydrogen pump cylinder, a hydrogen cylinder rod portion at least partially positioned within the hydrogen pump cylinder, and a plunger assembly including a sealing member and including a presser component, the plunger assembly operably connected to the hydrogen cylinder rod portion. The sealing member is configured to seal with a valve body of the piston assembly with the presser component not contacting the piston assembly. The presser component is configured to selectively force the valve body in a direction toward the sealing member.
Need to check novelty before this filing date? Find Prior Art