Rotary flow control valve

Details Rotary flow control valve Rotary flow control valve

1993-09-24

1995-02-14

Nilson, Robert G.

Fluid handling

Systems

Multi-way valve unit

13762524, 25112909, F16K 3104

Patent

active

053886143

ABSTRACT:
A rotary flow control valve is provided, that, despite compact design, offers excellent vibration resistance, a high response speed, and superb proportionality of a controlled flow rate to an applied current value. In a channel selector 4 in a rotary flow control valve 1, a guide valve 2 mounted in a hollow of an inner housing 6 is borne by bearings 19 and 20 so that the guide valve 2 can rotate forward or in reverse. Intra-outer housing tubes 10, 11, and 12 are formed in an outer housing 5. In the inner housing 6, communicating channels 13 to 16 are formed in fours at symmetric positions with respect to the rotation center of the guide valve 2. In a torque motor 3, permanent magnets 33 are attached to a lower armature 32 coupled with the guide valve 2 using an adhesive. The magnetic poles at both ends of the permanent magnets 33 are opposed to cylinders 43 about which coils 34 are wound. With attraction and repulsion produced between the cylinders 43 and permanent magnets 33, the guide valve 2 rotates together with the lower armature 32.

REFERENCES:
patent: 4621660 (1986-11-01), Klocke
patent: 4735233 (1988-04-01), Nogami et al.
patent: 4977816 (1990-12-01), Kuttruf

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