| 摘要 |
<p>PCT No. PCT/FR88/00352 Sec. 371 Date Mar. 1, 1989 Sec. 102(e) Date Mar. 1, 1989 PCT Filed Jul. 1, 1988 PCT Pub. No. WO89/00308 PCT Pub. Date Jan. 12, 1989.A pressure regulator controllable by a proportional magnet includes a valve box with a primary, secondary and deaeration coupling and two valves coaxial with each other and movable in the valve box and controlled by the setting force. The first valve controls a cup-shaped valve seat provided in the valve box for connecting the primary side to the secondary side, and closes it in the rest and deaeration positions, but opens in the working position. The second valve is applied, in the rest and working positions, on a seat surface of the first valve, and prevents any deaeration by the valve in the direction of the deaeration coupling, but in the deaeration and separation positions, clears the passage between this valve and the deaeration coupling. The valve seat surface and the valve surface which cooperates with the cup-shaped valve seat in the valve box are situated in a common diametrical plane and the seat surface is surrounded by the valve surface. The second valve includes, at its end facing the seat surface of the first valve, a second cup-shaped valve seat for bringing the second valve in substantially linear engagement with the seat surface of the first valve surface, and the outer diameter of the second cup-shaped seat corresponds to the inner diameter of the cup-shaped seat of the valve box.</p> |
