著者
山本 初之助
出版者
公益社団法人日本船舶海洋工学会
雑誌
造船協會會報 (ISSN:05148499)
巻号頁・発行日
no.48, pp.11-24, 1931-10-31

In the Yamamoto's feed-pump engine, the main valve chest and the auxiliary valve chest are made independent, so as to reduce the length of the main valve and the difference of expansion, and the space for the movement of the main valve was able to be uniformly distributed. The test results of 72 sets of feed-pumps with this system for high-pressure boilers of 200〜600 lbs./sq. in. are as follows : -1.The piston speed was uniform and the engine performance was smooth. 2.The shock, vibration and sound were reduced. 3.The efficiency of pumps was improved and the steam consumption was reduced. 4.It enabled to make starting and stopping of the engine easier and simplified the overhaul inspection. In this paper, the author precisely describes the improved points of this pump in comparison with the Weir's type, yet he says that these are not of absolute nature.

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