Title:
ロケットモータのインシュレータの製造方法
Document Type and Number:
Japanese Patent JP6680570
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a rocket motor insulator capable of feeding combustion gas normally into a boot clearance at the time of ignition of propellant powder grain even if the propellant powder grain is deformed due to its vertical installation state for a long period of time and acceleration at the time of its use and provide a manufacturing method of the same.SOLUTION: An insulator 10 comprises an end segment 14 adhered to an inner surface end part of a motor case and a relief boot 16 integrally formed inside the end segment 14 while a boot clearance G being spaced apart. The boot clearance G has an inner opening end G0 communicated with combustion gas of the propellant powder grain 2. Further, there is provided a flow passage holding part 18 adhered to the end segment 14 at the boot clearance G, having a smaller axial thickness than that of the boot clearance G and a gas flow passage 20 communicating the inner opening end G0 with the boot clearance G is configured.SELECTED DRAWING: Figure 3
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Inventors:
Satoshi Naganuma
Application Number:
JP2016042059A
Publication Date:
April 15, 2020
Filing Date:
March 04, 2016
Export Citation:
Assignee:
IHI Aerospace Co., Ltd.
International Classes:
F02K9/34; F02K9/12; F02K9/36
Domestic Patent References:
| JP8158942A | ||||
| JP50076425A |
Foreign References:
| US4823548 | ||||
| US3713395 | ||||
| CN104712460A |
Attorney, Agent or Firm:
Minoru Hotta
Toshihiro Nomura
Toshihiro Nomura