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-10870502-B2
Application number	US-201515310419-A
Country	US
Kind code	B2
Filing date	May 11, 2015
Priority date	May 13, 2014
Publication date	Dec 22, 2020
Grant date	Dec 22, 2020

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

The invention claimed is:

1. A vapor jet system comprising:
a first storage container including an inner wall to which a first foam metal is attached;
a first liquid held by the first foam metal;
a first vapor generated by vaporization of the first liquid in the first storage container;
a second storage container including an inner wall to which a second foam metal is attached;
a second liquid held by the second foam metal;
a second vapor generated by vaporization of the second liquid in the second storage container;
a first filter that prevents the passage of liquids;
a second filter that prevents the passage of liquids;
a jet orifice connected to a vapor passage connected to each of the first storage container and the second storage container;
a jet control part;
a first heater positioned at the first storage container; and
a second heater positioned at the second storage container, wherein
the first liquid and the second liquid are mutually insoluble.

2. The vapor jet system according to claim 1 , wherein
the first liquid is liquid ammonia or ammonia water, and the second liquid is liquid butane.

3. The vapor jet system according to claim 1 , wherein
at least one storage container of the first storage container and the second storage container further comprises a flat plate.

4. The vapor jet system according to claim 2 , wherein
at least one storage container of the first storage container and the second storage container further comprises a flat plate.

5. A vapor jet system comprising:
a single storage container;
a separation wall positioned inside the single storage container;
a first foam metal attached to an inner wall of the single storage container;
a second foam metal attached to an inner wall of the single storage container, the second foam metal being separated from the first foam metal by the separation wall;
a first liquid held by the first foam metal;
a first vapor generated by vaporization of the first liquid in the single storage container;
a second liquid held by the second foam metal;
a second vapor generated by vaporization of the second liquid in the single storage container;
a filter that prevents the passage of liquids;
a jet orifice connected to a vapor passage connected to the single storage container;
a jet control part; and
a heater positioned at the single storage container, wherein
the first liquid and the second liquid are mutually insoluble.

6. The vapor jet system according to claim 5 , wherein
the first liquid is liquid ammonia or ammonia water; and
the second liquid is liquid butane.

7. A vapor jet system comprising:
a first storage container including an inner wall to which a foam metal is attached;
a liquid held by the foam metal;
a vapor generated by vaporization of the liquid in the first storage container;
a second storage container;
an inactive gas in the second storage container;
a first filter that prevents the passage of liquids;
a second filter that prevents the passage of liquids;
a jet orifice connected to a vapor passage connecting to the first storage container and the second storage container;
a jet control part; and
a heater positioned at the first storage container, wherein
the inactive gas has a composition different from the liquid.

8. A vapor jet system comprising:
a single storage container;
a separation wall positioned inside the single storage container;
a foam metal attached to an inner wall of the single storage container;
a liquid held by the foam metal;
a vapor generated by vaporization of the liquid in the single storage container;
an inactive gas in the single storage container;
a filter that prevents the passage of liquids;
a jet orifice connected to a vapor passage connecting to the single storage container;
a jet control part; and
a heater positioned at the single storage container, wherein
the inactive gas has a composition different from the liquid.

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