초록 ▼

A blower for fluidized particulates has a housing with an inlet in one wall. The housing defines a chamber which also has an outlet. A rotatably mounted shaft projects into the interior of the chamber. Circumferentially spaced around and projecting laterally from the shaft are a plurality of blades

A blower for fluidized particulates has a housing with an inlet in one wall. The housing defines a chamber which also has an outlet. A rotatably mounted shaft projects into the interior of the chamber. Circumferentially spaced around and projecting laterally from the shaft are a plurality of blades which individually have a shape selected to substantially maximize the impulsive pressure on the particles delivered through the outlet upon rotation of the shaft. Each of those blades has a notch defined toward the shaft from the laterally outer blade periphery with that notch having a size and shape selected to significantly reduce noise created by movement of the blade across the outlet. A plurality of paddles individually project outwardly from and are circumferentially spaced around the shaft adjacent to and circumferential aligned with respective ones of the notches, with that spacing of each paddle from the corresponding adjacent blade being selected to augment reduction of the noise while maintaining maximization of the pressure.

대표청구항 ▼

A fluidized particulates blower comprising: a housing having an inlet in one wall through which fluidized particulates are delivered into the front of a chamber defined by said housing and having an outlet in another wall through which said particulates are impelled from said chamber; a rotatably mo

A fluidized particulates blower comprising: a housing having an inlet in one wall through which fluidized particulates are delivered into the front of a chamber defined by said housing and having an outlet in another wall through which said particulates are impelled from said chamber; a rotatably mounted shaft projecting into the interior of said chamber; a plurality of blades circumferentially spaced around and projecting laterally from said shaft within said chamber with said blades having a shape selected to substantially maximize the impulsive pressure on the delivered particulates through said outlet upon rotation of said shaft; each of said blades having a notch defined inwardly toward said shaft from the laterally outer blade periphery with said notch having a size and shape selected to significantly reduce noise created by movement of said blade across said outlet; and a plurality of paddles individually projecting outwardly from and circumferentially spaced around said shaft adjacent to and circumferentially aligned with respective ones of said notches with the spacing of each paddle from the corresponding adjacent blade being selected to augment reduction of said noise while maintaining maximization of said pressure.