초록 ▼

A rotary slide valve (10) controls compressed air, nitrogen and oxygen streams independently from each other. The rotary slide valve (10) consists of a housing (15) with pairs of diametrically opposed radial bores and a valve body (11) with recesses (35, 37). The valve body (11) is coupled to a rota

A rotary slide valve (10) controls compressed air, nitrogen and oxygen streams independently from each other. The rotary slide valve (10) consists of a housing (15) with pairs of diametrically opposed radial bores and a valve body (11) with recesses (35, 37). The valve body (11) is coupled to a rotary drive R. According to its position, the valve body (11) opens and closes compressed air inlets, compressed air outlets or nitrogen outlets and controls the streams of compressed air and nitrogen. In addition, the rotary slide valve controls several streams of oxygen through several axial oxygen inlets (49, 51) and outlets (53, 55) which may be interconnected through an axial recess of the valve body (11). The rotary slide valve (10) is used in particular in air oxygen-enriching installations.

대표청구항 ▼

A rotary slide valve for controlling compressed air, nitrogen and oxygen flows, having a) a housing having at least one compressed air inlet opening, at least two compressed air outlet openings, which also serve as nitrogen inlet openings, at least one nitrogen outlet opening and oxygen flow opening

A rotary slide valve for controlling compressed air, nitrogen and oxygen flows, having a) a housing having at least one compressed air inlet opening, at least two compressed air outlet openings, which also serve as nitrogen inlet openings, at least one nitrogen outlet opening and oxygen flow openings, b) a slide valve body positioned rotatably within the housing having recesses in the peripheral surface for the control of gas flows, c) a rotary drive connected to the slide valve body, and d) a recess in the slide valve body for conducting oxygen through which the oxygen flow openings are adapted to be connected to each other, characterized in that the oxygen flow openings include at least two openings serving exclusively as oxygen inlet openings and at least two associated openings serving exclusively as oxygen outlet openings, the oxygen inlet openings and the oxygen outlet openings are located respectively in opposed pairs in axially opposed end surface housing portions, so that each oxygen inlet opening is adapted to be connected through a recess to its associated, axially opposed oxygen outlet opening, and the compressed air inlet opening and the nitrogen outlet opening on the one hand, and the compressed air outlet openings on the other hand are configured exclusively as radially diametrically opposed bores, which cooperate with diametrically opposed control surfaces and recesses present in the peripheral surface of the slide valve body.