The Development of Japanese 20N Thruster Valve for a Spacecraft Propulsion System - Qualification test result -

Paper number

IAC-08.C4.3.4

Author

Dr. Taiichi Nagata, Japan Aerospace Exploration Agency (JAXA), Japan

Coauthor

Mr. kenichi kushiki, Japan Aerospace Exploration Agency (JAXA), Japan

Coauthor

Mr. kenichi kajiwara, Japan Aerospace Exploration Agency (JAXA), Japan

Coauthor

Mr. yoshiharu sugimura, MOOG Japan, Ltd, Japan

Coauthor

Mr. masayuki kobayashi, MOOG Japan, Ltd, Japan

Coauthor

Mr. hiroyasu itoh, MOOG Japan, Ltd, Japan

Coauthor

Mr. isamu okada, MOOG Japan, Ltd, Japan

Year

2008

Abstract

A 20N-class thruster valve has been developed by MOOG Japan and Japan Aerospace Exploration Agency (JAXA) under the Japanese space components supply restructuring program.
We aim to develop this valve of the high reliability and the robust design. GD3, TOYOTA motor company qualification control method, has been applied to design and developing process of this valve on trial.
The required specifications have been set, and the preliminary valve design was completed. 
The feature of this valve is follows.
1) Solenoid type operation: This thruster valve is the solenoid type valve.
2) Suspended armature configuration: The armature (plunger) is suspended by “S-Spring”, which is a kind of leaf spring, not with coil spring. There is no friction surface between armature and casing. This design contributes to long life performance and to reduce generation of contamination.
The qualification and marginal performance tests have been finished successfully. The 1,000,000 actuation has been achieved with no performance degradation.
We will provide these results and overview of our development.

Abstract document

IAC-08.C4.3.4.pdf

Manuscript document

IAC-08.C4.3.4.pdf (🔒 authorized access only).

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