Patent ID: 7641453
Filing Date: 2010-01-05
Classification: F04B,F16L,Y10T

Abstract:
1. A pulsation reducing apparatus for use in an apparatus having a pump for circulating a liquid in a circulating line and a tank for storing the liquid circulating via the pump, the pulsation reducing apparatus serving to reduce a pulsation of the liquid by the pump by using a gas in an empty space portion above a liquid surface in the tank as a buffer, the pulsation reducing apparatus comprising: a supplement tank for reserving the liquid such that a liquid surface height of the supplement tank is higher than that of the tank, wherein an empty space portion of the supplemental tank is connected to the tank via a gas exhaust line, and wherein when the empty space portion of the tank communicates with the empty space portion of the supplement tank via the gas exhaust line due to a reduction of the liquid in the tank, the gas in the tank is exhausted to the empty space portion of the supplement tank via the gas exhaust line and the liquid in the supplement tank is supplemented into the tank.