Patent ID: 8206127
Filing Date: 2012-06-26
Classification: F04F,F16T

Abstract:
1. A liquid pressure-feed device comprising: a closed vessel, the closed vessel comprising: wherein an intake valve body for opening and closing an intake valve port of the working fluid inlet port and an exhaust valve body for opening and closing an exhaust valve port of the working fluid discharge port are switched over between opening and closing in accordance with the level of liquid accumulated within the closed vessel, wherein, when the exhaust valve port is opened and the intake valve port is closed, liquid is allowed to flow into the closed vessel from the liquid inlet port, and when the exhaust valve port is closed and the intake valve port is opened, the liquid accumulated within the closed vessel is fed from the liquid discharge port under pressure, an inlet-side check valve port of the liquid inlet port is formed within the closed vessel, and an inlet-side check valve body is configured to open the inlet-side check valve port inwards of the closed vessel in the closed vessel, and wherein the closed vessel comprises: