Method of assembling gas flow control valve

Details Method of assembling gas flow control valve Method of assembling gas flow control valve

2004-10-25

2009-12-22

Bryant, David P (Department: 3726)

Metal working

Method of mechanical manufacture

Valve or choke making

C029S434000, C029S445000, C029S505000, C029S517000, C029S520000, C029S890122, C123S568200, C137S614210, C137S625000, C251S355000

Reexamination Certificate

active

07634856

ABSTRACT:
An assembly method includes a step of press-fitting a second valve27to a valve shaft29to which a first valve25is press-fitted and secured while measuring and adjusting a distance L2so that it becomes equal to a distance L1. Thus, the first valve25and second valve27are press-fitted to the valve shaft29and those components are swaged together so that the first and second valves are secured to the valve shaft, and oil is placed in a press-fitted portion. When components, such as the first valve25, are sintered parts, oil contained in the sintered parts themselves is used for increasing a joining force that occurs in the press-fitted portion.

REFERENCES:
patent: 4318422 (1982-03-01), Nakanishi et al.
patent: 6279552 (2001-08-01), Okada et al.
patent: 49-45532 (1974-12-01), None
patent: 11-182355 (1999-07-01), None
patent: 11-324823 (1999-11-01), None
patent: 2001-99014 (2001-04-01), None
patent: WO 99/61775 (1999-12-01), None

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