Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Blowing and sucking device
The invention relates to a blowing and sucking device. The device comprises a main engine shell, a motor and a fan arranged in the main engine shell, a blower pipe connected with the main engine shell and having an air inlet and an air outlet, and a blower accessory connected with the blower pipe, wherein the blower accessory comprises a first blower cylinder and a second blower cylinder; the first blower cylinder has a first blower opening; the second blower cylinder has a second blower opening; the section area of the first blower opening is smaller than the section area of the air outlet; the section area of the second blower opening is larger than the section area of the first blower opening; the second blower cylinder at least surrounds one part of the first blower cylinder; and a gap is formed between the inner wall of the second blower cylinder and the outer wall of the first blower cylinder, so that external airflow can enter the second blower cylinder from the gap. The blowing power of the blowing and sucking device is enhanced; and the ventilation quantity is increased.
Blowing and sucking device
The invention relates to a blowing and sucking device. The device comprises a main engine shell, a motor and a fan arranged in the main engine shell, a blower pipe connected with the main engine shell and having an air inlet and an air outlet, and a blower accessory connected with the blower pipe, wherein the blower accessory comprises a first blower cylinder and a second blower cylinder; the first blower cylinder has a first blower opening; the second blower cylinder has a second blower opening; the section area of the first blower opening is smaller than the section area of the air outlet; the section area of the second blower opening is larger than the section area of the first blower opening; the second blower cylinder at least surrounds one part of the first blower cylinder; and a gap is formed between the inner wall of the second blower cylinder and the outer wall of the first blower cylinder, so that external airflow can enter the second blower cylinder from the gap. The blowing power of the blowing and sucking device is enhanced; and the ventilation quantity is increased.
Blowing and sucking device
WARREN BROWN (Autor:in) / HARRY SZOMMER (Autor:in) / GRAHAM GERHARD (Autor:in)
16.09.2015
Patent
Elektronische Ressource
Englisch
IPC:
E01H
STREET CLEANING
,
Reinigen von Straßen
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