Cam type vacuum pump

Japanese: カム形真空ポンプ - かむがたしんくうぽんぷ
Cam type vacuum pump

...This pump can achieve a pressure of about 10 -2 to 10 -3 Torr in one stage, and 10 -4 Torr in two stages. In a cam-type vacuum pump, a partition plate set in a groove in a cylinder is pressed against an eccentric rotor by a spring and lever, and moves up and down like a cam as the rotor rotates, discharging the gas between the rotor and the cylinder. This pump is suitable for small capacities, and most two-stage pumps have a pressure of 10 -3 Torr or less. ...

*Some of the terminology used to refer to "cam type vacuum pumps" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…このポンプは1段で10-2~10-3Torr程度,2段で10-4Torr台が得られる。カム形真空ポンプはシリンダーの溝におさめられている仕切板がばねとレバーで偏心ローターに押しつけられ,ローターの回転によりカムのように上下運動をし,この作用でローターとシリンダー間の気体が排出される。このポンプは小容量向きで,2段で10-3Torr以下のものが多い。…

※「カム形真空ポンプ」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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