IP Library Granted Patent US 8,776,526
Granted Patent B2
US 8,776,526 · App. 13/018,517 · Granted Jul 15, 2014

Motor with solid fuel installed within combustion chamber and vortex generator installed on inner wall of combustion chamber

Inventors: Yen-Sen Chen (Hsinchu, TW); Jong-Shinn Wu (Hsinchu, TW); Tzu-Hao Chou (New Taipei, TW)
Assignee: National Applied Research Laboratories
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Quick Facts
Patent No.
US 8,776,526
App. No.
13/018,517
Granted
Jul 15, 2014
Kind
B2
Abstract

The present invention provides a motor including a combustion chamber, an oxidizer injector, a vortex generators and a nozzle. The combustion chamber can be used to dispose a solid fuel, and the oxidizer injector is used to control the flow rate of an oxidizer and to inject the oxidizer into the combustion chamber. The vortex generators is disposed on the inner wall of the combustion chamber for generating eddies to enhance the mixing of the fuel and the oxidizer. Additionally, the nozzle is connected with the combustion chamber for exhausting the gas generated by the combustion of the propellants.

Claims (14)

1. A motor, which includes:

a combustion chamber, wherein one fuel is installed within the combustion chamber;

an oxidizer injector, which is connected to the combustion chamber to inject oxidizer into the combustion chamber;

a vortex generator, installed on one of inner walls of the combustion chamber, which is used to generate a mixed gas stream within the combustion chamber so as to assist the mixing between the oxidizer and the fuel; and

a nozzle, which is connected to the combustion chamber so as to exhaust the gas generated by the combustion of the fuel,

wherein the fuel is solid.

2. The motor of claim 1 , wherein the combustion chamber has relative a first end and a second end, and the oxidizer injector is connected to the first end of the combustion chamber, and the nozzle is connected to the second end of the combustion chamber, meanwhile, the distance between the vortex generator and the first end is smaller than the distance between the vortex generator and the second end.

3. The motor of claim 1 , wherein the fuel is installed on the inner wall of the combustion chamber.

4. The motor of claim 1 , wherein the oxidizer is liquid.

5. The motor of claim 1 , wherein the vortex generator includes a plurality of vanes surrounded by and installed on the inner wall.

6. The motor of claim 5 , wherein the vanes are made up of carbon fiber composite material or alloy material.

7. The motor of claim 5 , wherein each two immediately adjacent vanes are symmetrically installed with each other.

8. The motor of claim 7 wherein an installation direction of each of said plurality of vanes and an axial direction of the inner wall forms an angle in the range of between 5 degrees and 45 degrees or between −5 degrees and −45 degrees.

9. The motor of claim 5 , wherein the fuel is installed on the inner wall of the combustion chamber, and the end parts of said plurality of vanes are protruding on the surface of the fuel.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 29, 2023
From: NATIONAL APPLIED RESEARCH LABORATORIES
To: TAIWAN SPACE AGENCY
Reel/Frame 064736/0365 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 8, 2011
From: CHEN, YEN-SEN; WU, JONG-SHINN; CHOU, TZU-HAO
To: NATIONAL APPLIED RESEARCH LABORATORIES
Reel/Frame 025772/0115 →
Priority Claims (1)
TW 99105242 A · Feb 24, 2010 · national
Continuity (1)
Related Publication 20110203256A1 · Aug 25, 2011