US1922070A - Fan injector - Google Patents

Description

2 Sheets-Sheet 1 [X I "EIYTOR I TJW FAN INJECTOR E. L. ANDERSON Filed Nov.

Aug. 15, 1933.

lbs.

.-1 TTOR XE Aug. 15, 1933. E. 1.. ANDERSON FAN INJECTOR Filed Nov. 10, 1930 2 Sheets-Sheet 2 [N VENTOR 4 7 [ORA b Patented Aug. 15, 1933 UNITED STATES PATENT OFFICE to American Blower Corporation,

Detroit,

Mich., a Corporation of Delaware Application November 10, 1930 Serial No. 494,580

7 Claims.

This invention relates to improvements in means for removing air from chambers and other inclosures.

It is also an object of this invention to provide,

in connection with means for removing air from one inclosure, means operated by the air being removed to remove air from another chamber.

It is also an object of this invention to provide, in connection with means for removing air from chambers and compartments, means for admitting fresh air thereto to take the place of the removed stale or impure air.

It is another object of. this invention to provide, in connection with ventilating means, a double spout nozzle adapted to be connected to a fan so that the ejected air passing through one part of the nozzle will draw air through. another part of the nozzle from a separate compartment from that forced through the first nozzle.

While this invention is particularly adapted for use on boats it may be equally well used in connection with stationary buildings, for removing stale and impure air from various compartments.

.These and other advantages will appear from the following description taken in connection with the accompanying drawings.

Referring to the drawings:

Figure 1 is a vertical longitudinal section through one part of a boat, showing applicants invention applied thereto for ventilating purposes.

Figure 2 is a side elevation of applicants fan injector and ventilator, showing in section the injector nozzle.

Figure 3 is a side elevation of the fan injector or ventilating apparatus with the inlet spout partly cut away.

Figure 4 is a top plan view of the injector attachment.

In Figure 1 applicants invention is applied to a boat, indicated by the numeral 1. In this boat are shown compartments or chambers 2 and 3, one being above the other. In the upper compartment is located the motor 4 for propelling the boat. Beneath compartment 2, with the motor therein, is compartment 3, into which extends one end of an intake spout 10.

For removing the air from the various compartments there is provided a fan casing 5, with a suitable fan located therein but not shown. This fan is supported by means of a bracket 6 and screws 7 on a partition wall 8. This partition wall separates the chambers 2 and 3 from an adjacent chamber 20. Extending downwardly from the fan casing is an intake spout 9. As

shown in Figure 1 the casing is located on the upper end of the wall 8 in the motor chamber 2, with the intake spout 9 extending down into the lower chamber orlcompartment 3.

The lower end of the intake spout is cut at a slant, indicated by the numeral 10, so that the fetid, stale and impure air found in the chamber or compartment 3 may be readily drawn into the intake spout for being forced out through the outlet spout 11.

The overhead covering oi. the compartment 2 is indicated by the numeral 12. This may be merely an overhead ceiling for the compartment 2 or it may be a floor supporting any structure above the compartments 2 and 3 and any adjacent compartments. In this overhead floor or ceiling is an opening which receives a projection on a compound spout and injector mechanism. The inner part of this compound spout and injector is indicated by the numeral 13 and constitutes a spout or nozzle attached to the outlet 11. This spout 13 is flat and broad, as indicated in Fi ure 4.

Around the spout 13 is a similarly shaped outer spout member 14, which extends outwardly beyond the outer end of the inner spout 13. These two spout members are held together by means of stays 15. These two spout members and the intervening stays are cast together so that this whole structure constitutes a single piece. Between the two spout members 13 and 14 is a passageway 16. This passageway opens into the upper chamber 2 so that whenever the air from the lower chamber 3 is drawn up through the intake spout 9 and forced out through the outlet 11, air is drawn by injector action from chamber 2 out through the nozzle or spout 14, so that one operation of the fan tends to draw by fan operation the stale air from compartment 3, and draw by injector action the stale air from compartment 2.

Extending around the injector member is a flange 17 which is attached to the floor 12 by means of screws 18. This member so engages the floor 12 that there is an air-tight closure so that any air passing from the chamber 2 passes out through the outlet 14. In order to provide for fresh air when the stale air is being withdrawn from chamber 2, an inlet ventilator 19 is provided in the floor 12. While this ventilator is shown located in the floor 12 it may be located at other suitable positions to collect fresh air from the wind or movement of the vehicle.

As thus far described applicants ventilating apparatus is not only adapted to be used with.

at the same time an adjacent chamber 20 may be ventilated by means of a spout 21 extending through the wall 8 from the chamber to the intake spout 9. By this means when the fan is operated it not only draws the air from compartment 3 but also from the adjacent compartment 20 and forces the air out through the injector nozzle 13.

While one particular arrangement and location of applicant's fan injector is shown it may be located in other positions, and may be used with various types and forms of rooms and compartments. It is obvious from the showing here that this fan injector may be used for removing stale air from three compartments at one time, while by proper use with a larger number of pipes connecting other compartments with the intake spout 9, other compartments may be ventilated and have the stale and impure air removed therefrom as eilfectively as shown in connection with the three compartments in the present drawings.

Attention is directed to the fact that movement of the boat will induce air movement through ventilator 19 and injector 14, and thereby induce air movement from a compartment such as the bilge 3 and a compartment such as the gallery 20, without using the Ian.

I desire to comprehend within my invention such modifications as may be embraced within my claims and the scope of my invention.

Having thus fully described my invention, what I claim is new and desire to secure by Letters Patent, is:

1. In a ventilating apparatus, in combination with a plurality of chambers having a covering, air current producing means on the wall of one chamber, air passageways extending from said current producing means to a plurality of chambers, means to conduct the air from the current producing means to a point without said chambers and in line with the covering of the chambers, and means cooperating with said lastnamed means to draw the air from another chamber due to the force of the air expelled by the current producing means.

2. In a ventilating apparatus, in combination with a plurality of chambers, an air current producing means in one of said chambers, a pipe extending from said current producing means to certain oi. the other chambers, means extending from the air current producing means to a point without the chambers for conducting the air and directing it into a horizontal direction, and means associated with the last-named means cooperating with the air expelled by the current productwo chambers, one located above the other but 1118 means to withdraw the air from another chamber.

3. In a ventilating apparatus, a pair of chambers, an air current producing means located in one chamber and having an outlet extending to a point just without the chambers and bent horizontally, a pipe extending from said air producing means into the other chamber sothat by operation of the air current producing means the air may be removed from the last-named chamber, and means associated with the discharge of theair from the last-named chamber to eject the air from the other chamber.

4. In a ventilating apparatus, in combination with a plurality of chambers, ventilating means in one chamber having extending therefrom an outlet and a plurality of inlets extending one into each of the other chambers, and means on the outlet cooperating with the air passing through the .outlet to extract the air from the firstnamed chamber.

5. In a ventilating apparatus, in combination with a plurality of chambers one above the other, current producing means in one chamber having an outlet and an inlet extending into the other chamber, an injector means on the outlet end of said current producing means whereby the current produced by the current producing means will extract the air from the first-named chamber, and means associated with the first-named chamber for supplying fresh air thereto as the stale air is exhausted.

6. In a ventilating apparatus, in combination with a chamber having an opening, air current producing means in said chamber having an air outlet, and a nozzle means on said air outlet fitting in said opening and extending in a horizontal direction, said nozzle means comprising an inner spout member forming a continuation of the outlet, and an outer spout attached to the chamber around theopening and supporting and forming with the inner spout member an annular outlet from the chamber.

'7. In a ventilating apparatus, in combination with a plurality of chambers, an air current producing means in one chamber having intake connections with the other chambers and an outlet, and a nozzle for said outlet, said nozzle consisting of an inner spout member forming a continuation of the outlet, and an outer spout member around the inner spout member and attached to the first-named chamber and supporting and forming with the inner spout member an annular outlet for said first chamber.

EDWARD L. ANDERSON.

Images