| 摘要 |
<p>A valve with presetting facility has a valve housing (1) with a rotatable sleeve (12). To form a preset throttle (35), a control opening (33) at the base (14) of the sleeve co-operates with a control opening (34) at a base face (8) of the valve housing (1). The control opening (34) in the base face (8) is formed by an eccentric bore (9). The control opening (33) in the end face (15) of the base (14) is formed by a channel (31) which extends over a circular arc of less than 360°, is connected at one end by way of an eccentric bore (18) to the inner space (21) of the sleeve (12) and has a cross section that reduces towards the other end. That allows presetting to be very precise and manufacture to be inexpensive.</p> |
