| 摘要 |
<p>A fluid-pressure-modulation device intended to be interposed between any hydraulic control and any receiver device, especially for the braking circuits of automobile vehicles, comprises essentially a first chamber connected to the control and a second chamber connected to the receiver. The chambers communicate with each other through a first passage controlled by a regulating valve which is normally closed, and also through a second passage formed axially in the regulating valve and controlled by an isolating valve which is normally open. The regulating and isolating valves form conjointly a valve unit which is movable in the first chamber and has a guiding tail slidably engaged in a fluid-tight manner in a bore coupled to the second chamber. The isolating valve is integrally housed in the regulating valve, and the guiding tail of the valve unit is carried by the regulating valve.</p> |
