| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid-pressure feed apparatus which can keeps an exhaust valve certainly open and an intake valve closed until a float reaches a predetermined high level, whereas the exhaust valve certainly closed and the intake valve open until the float reaches a predetermined low level. SOLUTION: In a snap mechanism 5 which is provided with a float arm 34 which is connected to the float 3 and oscillates in accordance with vertical motion of the float 3, a coil spring 38 in compression state which shows a deformation in accordance with oscillation of the float arm 34 and a secondary arm 37 which is connected to a power transmission shaft 28 and moves to snap the power transmission shaft 28 by deformation retrieval of the coil spring 38, the liquid-pressure feed apparatus provides between an oscillating shaft 35 of the float arm 34 and the secondary arm 37 an auxiliary coil spring 50 which remains in compression state and urges the power transmission shaft 28 to a direction of opening the exhaust valve and closes the intake valve in case of first state that shows an opening of the exhaust valve and closure of the intake valve and to a direction of closing the exhaust valve and opens the intake valve in case of second state that shows a closure of the exhaust valve and opening of the intake valve. COPYRIGHT: (C)2007,JPO&INPIT
|
