公开(公告)号：US20230332585A1

公开(公告)日：2023-10-19

申请号：US18300724

申请日：2023-04-14

Applicant: Chart Inc.

Inventor： Thomas K. Drube

IPC: F04B23/02 ,  F04B9/105 ,  F04B15/08

CPC classification number: F04B23/021 ,  F04B9/105 ,  F04B15/08 ,  F04B2015/0822

Abstract: A pump for pumping a cryogenic liquid includes a pump housing defining an elongated cylinder. An elongated piston slides within the cylinder so that an intermediate fluid chamber, that is configured to receive an intermediate fluid, is defined within the cylinder adjacent to a first end of the piston and a fluid pumping chamber is defined within the cylinder adjacent to a second end of the piston. The fluid pumping chamber includes an inlet and an outlet. The pump housing is positioned within a sump. The sump is configured to receive and submerge a portion of the pump housing within the cryogenic liquid and to provide cryogenic liquid to the inlet of the pumping chamber for pumping. A sump jacket surrounds the sump so that a sump insulation space is defined therebetween. A pump jacket surrounds the pump housing so that a pump insulation space is defined therebetween.

公开(公告)号：US20210404604A1

公开(公告)日：2021-12-30

申请号：US17348972

申请日：2021-06-16

Applicant: Chart Inc.

Inventor： Thomas K. Drube ,  Eric Thor

IPC: F17C7/04 ,  F17C13/02

Abstract: A system for dispensing a cryogenic fluid includes a bulk tank configured to contain a supply of a cryogenic liquid, a first sump and a first liquid feed valve configured to direct liquid from the bulk tank to the first sump when in an open condition and to prevent transfer of liquid from the bulk tank to the first sump when in a closed condition. A first positive displacement pump is positioned within the first sump and configured to pump and be submerged in cryogenic liquid when the first sump contains cryogenic liquid above a predetermined liquid level within the first sump. A delivery line is in fluid communication with an outlet of the first positive displacement pump and is configured to direct cryogenic fluid from the first positive displacement pump to a use device when the first positive displacement pump is activated.

公开(公告)号：US20230383911A1

公开(公告)日：2023-11-30

申请号：US18321952

申请日：2023-05-23

Applicant: Chart Inc.

Inventor： Corey J. Risty ,  Thomas K. Drube ,  Ian Neeser ,  Joshua Steffen ,  Troy Lindquist

IPC: F17C7/04

CPC classification number: F17C7/04 ,  F17C2223/0161 ,  F17C2227/0142 ,  F17C2227/0306 ,  F17C2203/0391 ,  F17C2221/012 ,  F17C2265/065 ,  F17C2227/0185 ,  F17C2227/0178

Abstract: In a system for dispensing a cryogenic fluid, a bulk tank is configured to contain a supply of a cryogenic liquid. A sump is configured to receive cryogenic liquid from the bulk tank. A first positive-displacement pump is positioned within the sump and is configured to be submerged within and pump cryogenic liquid stored within the sump. A second positive-displacement pump is positioned within the sump and is configured to be submerged within and pump cryogenic liquid stored within the sump. A vaporizing heat exchanger is configured to receive and vaporize cryogenic liquid pumped from the first pump and/or the second pump.

公开(公告)号：US20230182564A1

公开(公告)日：2023-06-15

申请号：US18063306

申请日：2022-12-08

Applicant: Chart Inc.

Inventor： Jeffrey Patelczyk ,  Thomas K. Drube

IPC: B60K15/035 ,  B60K15/03 ,  B60L50/75

CPC classification number: B60K15/03504 ,  B60K15/03006 ,  B60L50/75 ,  B60K2015/03585 ,  B60K2015/03557 ,  B60K2015/03315

Abstract: A cryogenic fuel tank system includes a fuel tank configured to contain a cryogenic liquid with a headspace above the cryogenic liquid configured to contain cryogenic vapor. A fuel cell converts cryogenic vapor from the headspace to electricity and water vapor. A vent valve directs excess cryogenic vapor from the headspace to the fuel cell when a pressure in the fuel tank exceeds a predetermined pressure level.