| 摘要 |
<p>PURPOSE:To regulate capacities by reciprocatingly movably providing inside and outside reciprocating members which can be fixed and separated by means of an inside fixing member so as to increase/decrease the capacity of a common pump chamber. CONSTITUTION:At the time of a small capacity operation, a fixing member 40 is removed from an inside plunger 32 and the screwing parts 50, 52 of a fixing member 48 are screwed into an outer peripheral part 38 and an inner peripheral part 46 to permit the relative movement in the axial direction of the inside plunger 32 to an outside plunger 34. At the time of a large capacity operation, by fixing member 40 is screwed into the inside plunger 32 while removing the screwing parts 50, 52 of the fixing member 48 from the outer peripheral part 38 and the inner peripheral part 46 to fix the outside plunger 34 to the inside plunger 32. Hence, capacities can be regulated by selecting either only the inside plunger is reciprocated or both plungers are integrally reciprocated.</p> |
