Patent Number: 6,305,662

Title: Reduced-energy-consumption actuator

Abstract: A valve system (10) includes a piezoelectric transducer (44) mounted on its housing (16). To change the valve's state, a microcontroller (54) causes a valve driver (58) to drive current through the actuator's coil (12) at a relatively high level. It continues driving current through the coil (12) at the high level until the transducer's output reaches a magnitude characteristic of the disturbance that typically results when the actuator's armature (22) reaches the end of its travel. At that point, the microcontroller (54) reduces coil drive.

Inventors: Parsons; Natan E. (Brookline, MA), Mo; Xiaoxiong (Nashua, NH)

Assignee: Arichell Technologies, Inc.

International Classification: F16K 31/06 (20060101); F16K 37/00 (20060101); F16K 031/02 ()

Expiration Date: 10/23/2018