US 2002/0170615 A1 · Air supply controller for weft insertion nozzles in an air jet loom

Abstract

An arrangement for supplying air with a controlled pressure to the main weft insertion nozzles of an air jet loom includes a single servovalve connected between a pressurized air source, an air vent, and a pressure manifold, and individual shut-off valves respectively interposed in branch lines connected from the pressure manifold to the individual nozzles. A pressure sensor measures the actual pressure provided to the manifold. An electronic controller receives a pressure control signal and controls the servovalve responsive to any difference between the pressure control signal and the actual measured pressure signal. The arrangement is simple, economical, and rapidly reacting, to avoid the need of individual throttle valves or pressure regulators for the individual nozzles.

Claims20

Dependent claims

A weft insertion system for an air jet loom comprising:

a pressurized air source;
plural weft insertion nozzles;
and
an air supply system that is connected between said pressurized air source and said weft insertion nozzles to control and supply pressurized air from said pressurized air source to said weft insertion nozzles;
wherein said air supply system includes a single pressure controller that includes pressure regulation and control electronics, a pressure sensor, and a single servovalve interconnected between said pressurized air source and all of said plural weft insertion nozzles.

2 more elements

Dependencies are inferred from the claim text.

Air supply controller for weft insertion nozzles in an air jet loom

Life of this patent

Air supply controller for weft insertion nozzles in an air jet loom

Life of this patent

Abstract

Claims20