Patent · US Active

Jet pump

US11905978B2 · kind B2 · utility

0Cited by

5References

9Claims

0Family size

Assignee

NORMA GERMANY GMBH · DE

Inventors

Daniel Kintea · Maintal, DE
Lukasz Gabrys · Pilica, PL
Christian Kahl · Maintal, DE
Gerrit von Breitenbach · Maintal, DE
Michal Sajdak · Pilica, PL

Key dates

Filing date	Mar 30, 2020
Grant date	Feb 20, 2024
Priority date	—
Expiry date	Mar 30, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04F5/54
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A jet pump comprising a jet nozzle for accelerating a propellant. The jet nozzle has a convergent inlet part and an outlet part connected to the convergent inlet part. The outlet comprises an inner wall diverging at an opening angle. The opening angle is designed such that a propellant flowing through the outlet part at subsonic speed is detached from the inner wall and a propellant flowing through the outlet part at supersonic speed is guided by the inner wall. An automatic, cost-effective and simple changeover of the jet pump to different pressure ratios is hence provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.