초록 ▼

A cyclic flow valve (20) for cyclically controlling the flow of combustants into a combustion furnace. The cyclic flow valve includes a valve housing (26) having a chamber (30), an inlet (36), and an outlet (46). The cyclic flow valve also includes an aperture plate (52) rigidly fixed within the cha

A cyclic flow valve (20) for cyclically controlling the flow of combustants into a combustion furnace. The cyclic flow valve includes a valve housing (26) having a chamber (30), an inlet (36), and an outlet (46). The cyclic flow valve also includes an aperture plate (52) rigidly fixed within the chamber of the valve housing. The aperture plate has first and second apertures (68a and 68b) extending through the plate. A rotor member (54) is rotatably secured within the chamber. The rotor member is held in spaced disposition from the aperture plate. The space defines a low flow gap (92) of predetermined width between the rotor member (54) and the aperture plate (52). The rotor has diametrically opposed paddles (70s and 70b) positioned and sized to selectively control the flow of combustants through the flow valve between a low flow position, wherein the combustants flow through the low flow gap at a predetermined minimal flow rate, and a high flow position, wherein the combustants flow between the inlet and outlet at a predetermined maximum flow rate. In the low flow position, the paddles (70a and 70b) obstruct flow through apertures (68a and 68b) in the aperture plate (52). In the high flow position, the paddles do not obstruct flow through the apertures. The cyclic flow valve includes a rotary motor (50) for rotating the rotor member (54) within the chamber between the low flow position and high flow position.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [19.] A cyclic flow valve suitable for cyclically controlling the flow of combustants into a pulse combustion apparatus, said cyclic flow valve comprising:(a) a valve housing having a c

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [19.] A cyclic flow valve suitable for cyclically controlling the flow of combustants into a pulse combustion apparatus, said cyclic flow valve comprising:(a) a valve housing having a chamber, an inlet, and an outlet;(b) an aperture plate rigidly fixed within the chamber of the valve housing, the aperture plate having at least one aperture extending through the aperture plate;(c) a rotor member rotatably secured within the chamber, the rotor member being held in spaced disposition from the aperture plate so as to define a low flow gap of predetermined width therebetween, the rotor member having at least one aperture closure paddle positioned and sized with respect to the at least one aperture in the aperture plate to selectively control the flow of combustants through the flow valve between a low flow position, wherein the combustants are forced to flow through the low flow gap, and a high flow position, wherein the combustants are not forced to flow through the low flow gap; and(d) a rotary drive member for rotating the rotor member between the low flow position and the high flow position. [25.] The cyclic flow valve of claim 19, wherein the size of the at least one aperture in the aperture plate controls the amount of time it takes to transition the cyclic flow valve between the high and low flow positions.