Cryogenic pump
US10774820B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2017 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Jul 22, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2015/081
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cryogenic pump includes a drive assembly and a pressurization assembly operatively coupled to each other. The drive assembly includes a housing having sidewall and piston slidably disposed therein, the sidewall and a first surface of piston defining expansion chamber. A fuel supply valve is provided in fluid communication with supply of liquid cryogenic fuel and configured to selectively provide liquid cryogenic fuel into expansion chamber. A heating element extends at least partially into expansion chamber to heat and facilitate vaporization of liquid cryogenic fuel, thereby increasing pressure within expansion chamber and causing movement of piston in first direction. The pressurization assembly includes barrel defining bore and a plunger slidably disposed therein to define pressurization chamber for receiving liquid cryogenic fuel. The plunger is driven by the piston such that the movement of piston in first direction causes movement of plunger to pressurize cryogenic fuel within pressurization chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.