公开(公告)号：US10299642B2

公开(公告)日：2019-05-28

申请号：US15174840

申请日：2016-06-06

Applicant: MTD PRODUCTS INC

Inventor： Peter J. Buchanan ,  Erik Krueger

IPC: A47L5/14 ,  E01H1/08 ,  A01G20/47 ,  F04D25/08 ,  F04D27/00 ,  F04D29/42 ,  F04D29/70

Abstract: A blower includes a frame, a surface engaging wheel attached to the frame and a power source attached to the frame. An impeller housing is also attached to the frame, and the impeller housing defines an intake opening. The impeller housing surrounds an impeller that is rotatably connected to the power source. An exhaust chute is attached to the impeller housing. A selectively closeable aperture structure is attached to the intake opening. In further examples, the selectively closeable aperture is a pair of rotatable plates both including radial slots or an iris blade assembly. In other examples, the exhaust chute is rotatable or the impeller housing is rotatable.

公开(公告)号：US20190269286A1

公开(公告)日：2019-09-05

申请号：US16419266

申请日：2019-05-22

Applicant: MTD PRODUCTS INC

Inventor： Peter J. Buchanan ,  Erik Krueger

IPC: A47L5/14 ,  A01G20/47 ,  F04D29/42 ,  F04D27/00 ,  F04D25/08 ,  F04D29/70 ,  E01H1/08

Abstract: A blower includes a frame, a surface engaging wheel attached to the frame and a power source attached to the frame. An impeller housing is also attached to the frame, and the impeller housing defines an intake opening. The impeller housing surrounds an impeller that is rotatably connected to the power source. An exhaust chute is attached to the impeller housing. A selectively closeable aperture structure is attached to the intake opening. In further examples, the selectively closeable aperture is a pair of rotatable plates both including radial slots or an iris blade assembly. In other examples, the exhaust chute is rotatable or the impeller housing is rotatable.

公开(公告)号：US20160353951A1

公开(公告)日：2016-12-08

申请号：US15174840

申请日：2016-06-06

Applicant: MTD PRODUCTS INC

Inventor： Peter J. Buchanan ,  Erik Krueger

IPC: A47L5/14 ,  A01G1/12 ,  F04D27/00 ,  F04D25/08 ,  F04D29/42 ,  F04D29/70

CPC classification number: A47L5/14 ,  A01G20/47 ,  E01H1/0809 ,  F04D25/08 ,  F04D27/003 ,  F04D29/4213 ,  F04D29/422 ,  F04D29/4226 ,  F04D29/703

Abstract: A blower includes a frame, a surface engaging wheel attached to the frame and a power source attached to the frame. An impeller housing is also attached to the frame, and the impeller housing defines an intake opening. The impeller housing surrounds an impeller that is rotatably connected to the power source. An exhaust chute is attached to the impeller housing. A selectively closeable aperture structure is attached to the intake opening. In further examples, the selectively closeable aperture is a pair of rotatable plates both including radial slots or an iris blade assembly. In other examples, the exhaust chute is rotatable or the impeller housing is rotatable.

Abstract translation: 鼓风机包括框架，附接到框架的表面接合轮和附接到框架的电源。 叶轮壳体也附接到框架，并且叶轮壳体限定进气口。 叶轮壳体围绕可旋转地连接到电源的叶轮。 排气槽连接到叶轮壳体。 选择性地可关闭的孔结构附接到进气口。 在另外的例子中，选择性关闭的孔是一对可转动的板，它们均包括径向狭槽或虹膜叶片组件。 在其他示例中，排气槽可旋转或者叶轮壳体可旋转。