JPH04161741A - Ventilator - Google Patents

Abstract

PURPOSE:To eliminate need for providing in an air passage a movable member which needs maintenance by providing a nozzle which injects high pressure air into the air passage of a ventilating air passage in the ventilating direction. CONSTITUTION:A ventilator consists of a ventilating air passage 1 which is widened at a lower end like a trumpet and a nozzle 2 arranged in the center of an opening of the air passage 1. The nozzle 2 is connected to a high pressure air generating means such as a compressor through a high pressure air piping 3 for injecting high pressure air into the air passage 1. At this time, as air pressure between an outer periphery of the nozzle 2 and an inner surface of the air passage 1 drops down, outer air is suctioned by a high pressure airstream into the air passage 1, whereby ventilation is carried out. Accordingly, as a movable member which needs maintenance is not in the air passage and it is only the inner surface of the air passage that dirty air contacts, maintenance is not really needed.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a ventilation device for ventilation or exhaust.

[Conventional technology]

Conventionally, the types of ventilation equipment commonly used are:
Various types of fans were used.

[Problem to be solved by the invention]

In this case, since the fan inevitably becomes dirty, maintenance such as cleaning of the fan is required. Especially in the case of a fan installed in a kitchen, this maintenance requires a great deal of effort. The present invention has been made in view of these points, and its purpose is to provide a ventilation system that does not require maintenance.

[Means to solve the problem]

The ventilation device according to the present invention is characterized in that it comprises a ventilation air path and a nozzle that blows high-pressure air into the air path in the ventilation direction. [Function] According to the present invention, the high-pressure air ejected from the nozzle draws other air into the air path and sends it out, so there is no need to provide a movable member that requires maintenance in the air path. [Embodiment 1] The present invention will be described in detail below based on the illustrated embodiment. The nozzle 2 is connected to a high-pressure air generating means (not shown) such as a compressor through a high-pressure air pipe 3.
It is connected to the. The nozzle 2 here blows out high-pressure air toward the inside of the air passage 1. At this time, since the air pressure between the outer periphery of the nozzle 2 and the inner surface of the air passage 1 decreases, the flow of high-pressure air causes External air is drawn into the air passage 1 and ventilated.

【Effect of the invention】

As described above, in the present invention, there is no movable member in the air path that requires maintenance, and the only surface that comes into contact with dirty air is the inner surface of the air path, so there is no need for maintenance in practice. In addition, it is also possible to ventilate a wide range of spaces, making it extremely suitable as a ventilation device installed in kitchens, fireplaces, etc.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of one embodiment of the present invention, and FIG. 2 is a bottom view of the same, in which 1 represents an air passage and 2 represents a nozzle. Agent Patent attorney Ishi 1) Chief 7■...air n Figure 2

Claims (1)

[Claims] (1) A ventilation device comprising a ventilation air path and a nozzle that blows high-pressure air into the air path in the ventilation direction.