Vapor jet system enabling jetting for many seconds using multiple kinds of mutually insoluble liquid gases as fuel

Patent metadata

Field	Value
Publication number	US-2017073089-A1
Application number	US-201515310419-A
Country	US
Kind code	A1
Filing date	May 11, 2015
Priority date	May 13, 2014
Publication date	Mar 16, 2017
Grant date	—

Abstract

A vapor jet system to continuously jet vapors while suppressing cavitation. One vapor jet system includes a liquid storage part for separately storing two or more kinds of mutually insoluble liquids; a jet orifice; and a jet control part. Jetting the vapors is from a state where pressure in the space storing the vapors in the liquid storage part is higher than the saturated vapor pressure in any of the two or more kinds of liquids. Alternatively, a vapor jet system can include a fluid storage part storing one kind of liquid and at least one kind of inactive gas having a composition different from the liquid; a similar jet orifice; and a similar jet control part. Jetting the vapors and inactive gas(es) is (are) from a state where pressure in a vapor storing space in the fluid storage part is higher than the saturated vapor pressure in the liquid.

First claim

1 . A vapor jet system comprising:
a liquid storage part for separately storing two or more kinds of mutually insoluble liquids; a jet orifice for jetting out vapors generated by vaporization of the two or more kinds of liquids inside of the liquid storage part; and a jet control part for controlling the jetting out of the vapors from the jet orifice, wherein the system is configured to start jetting out of the vapors from a state where the pressure in the space storing the vapors in the liquid storage part is higher than the saturated vapor pressure in any of the two or more kinds of liquids.

2 . The vapor jet system according to claim 1 , wherein the two or more kinds of mutually insoluble liquids are liquid ammonia or ammonia water and liquid butane.

3 . The vapor jet system according to claim 1 , further comprising heaters for heating the liquid storage part.

4 . The vapor jet system according to claim 1 , wherein the liquid storage part further comprise two or more liquid holding members for holding each one of the two or more kinds of liquids.

5 . A vapor jet system comprising:
a fluid storage part storing one kind of liquid and at least one kind of inactive gas having a composition different from the liquid; a jet orifice for jetting out vapors generated by vaporization of the liquid inside of the fluid storage part and the at least one kind of inactive gas; and a jet control part for controlling the jetting out of the vapors and the at least one kind of inactive gas from the jet orifice, wherein the system is configured to start jetting out of the vapors and the at least one kind of inactive gas from a state where the pressure in the space storing the vapors in the fluid storage part is higher than the saturated vapor pressure in the liquid.

6 . A thruster configured to obtain thrust force by jetting out the vapors from the jet orifice using the vapor jet system according to claim 1 .

7 . The vapor jet system according to claim 2 , further comprising heaters for heating the liquid storage part.

8 . The vapor jet system according to claim 2 , wherein the liquid storage part further comprise two or more liquid holding members for holding each one of the two or more kinds of liquids.

9 . The vapor jet system according to claim 3 , wherein the liquid storage part further comprise two or more liquid holding members for holding each one of the two or more kinds of liquids.

10 . A thruster configured to obtain thrust force by jetting out the vapors from the jet orifice using the vapor jet system according to claim 2 .

11 . A thruster configured to obtain thrust force by jetting out the vapors from the jet orifice using the vapor jet system according to claim 3 .

12 . A thruster configured to obtain thrust force by jetting out the vapors from the jet orifice using the vapor jet system according to claim 4 .

13 . A thruster configured to obtain thrust force by jetting out the vapors from the jet orifice using the vapor jet system according to claim 5 .

14 . A thruster configured to obtain thrust force by jetting out the vapors from the jet orifice using the vapor jet system according to claim 7 .

15 . A thruster configured to obtain thrust force by jetting out the vapors from the jet orifice using the vapor jet system according to claim 8 .

16 . A thruster configured to obtain thrust force by jetting out the vapors from the jet orifice using the vapor jet system according to claim 9 .

Assignees

• Japan Aerospace Exploration

Inventors

• Kawaguchi Junichiro
• Mori Osamu
• Yamamoto Takayuki
• MOTOOKA Norizumi
• CHUJO Toshihiro

Classifications

• F02K9/605 Primary

  Reservoirs · CPC title

• B64G1/401 Primary

  Liquid propellant rocket engines (Ion or plasma engines B64G1/413; Arcjets and other resistojets B64G1/415) · CPC title

• B64G1/4021

  Tank construction; Details thereof · CPC title

• F03H99/00

  Subject matter not provided for in other groups of this subclass · CPC title

• F02K9/50

  using pressurised fluid to pressurise the propellants · CPC title