US1691536A

US1691536A - Air cleaner

Info

Publication number: US1691536A
Application number: US739960A
Authority: US
Inventors: Charles A Winslow; Elbert J Hall
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-09-25
Filing date: 1924-09-25
Publication date: 1928-11-13
Anticipated expiration: 1945-11-13

Description

Nov. 13, 1928.

C. A. WlNSLOW ET AL AIR CLEANER Filed Sept. 25, 1924 2 Sheets-Sheet Nov. 13, 19 28.

2 Sheets-Sheet C A WINSLOW ET AL AIR CLEANER Flled Sept 25, 1924 an uc-wfoo C. 4?? h/z'nalam STATES cams .e. wmsnow, or VALLEJO, am) ELBERT 11mm, or BERKELEY, CALIFORNIA.

PATENT OFFICE.

AIR CLEANER.

- Application filed September 25, 1924. Serial No. 739 960.

lhe object of this invention is the provision of a device for removing dust and other impurities from air which is passed through a carbureter to produce a gaseous mixture providing the motive medium for the operation of an internal combustlon engine.

The invention provides a device simple 1n construction and effective for the purpose intended and designed to be located in the air supply of a carbureter for automatically eliminating dust and like impurities from the air, said device being compact and adapted to .be readily installed and which is reliable and efiective in operation.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

While the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet'difi'erent conditions and requirements, various changes in the form, proportion and minor" details of construction may be resorted to without departing from the nature of the invention.

Referring to the accompanyingdrawings forming a part of the specification,

Figure l is a detail view showing the mvention in operative position,

Figure 2 is an enlarged sectional view of the cleaner on the line 2-2 of Figure 1,

Figure 3 is a detail sectional view on the line 3-3 of Figure 2,

Figure 4c is a detail sectional view on the line 4-4 of Figure 2,

Figure 5 is a front elevational View of the device.

Corresponding and like parts are referred to in the following description and designated inthe several views of the drawings by like reference characters. v

The numeral 10 denotes the radiator, 11 the fan, and 12 the carbureter, being well known parts of a motor vehicle propelled by an internal combustion engine. In accordance with the present invention an air cleaner is provided and is coupled to the air intake of the carbureter and has an air pipe 13 coupled to the inlet thereof, the receiving end of the air pipe being flared and disposed adjacent the fan 11 to admit of the latter forcing air therein. v I

The air cleaner is preferably of sectional formation and comprises a casing 14 and aclosure 15 for the bottom thereof, the casing 14 being preferably of the outline of a truncated cone, which is closed at the top and provided with a clean air outlet 18 which I is radially disposed and provided with a choke valve 19 and asmall outlet 20 for the escape of any unconsumed fuel which may accumulate in the bottom 15 and which may be led off to a suitable point of discharge by a pipe 2O to prevent explosion from any. back-fire. A dust oulet 21 is provided in the casing 14L for the discharge of a portion of the incoming air together with the dust and other impurities eliminated from the air. The oulet 21 has a tangential arrangement with respect to the casing 14 and is located at the bottom or larger end of the casing and adjacent the outer wall to admit of the impurities being positively discharged by centrifugal action. The inlet 22 is adjacent the top of the casing and at the side thereof and is preferably disposed at a tangent thereto so that the incoming air has a whirling motion imparted thereto whereby the dust and other impurities are separated therefrom by centrifugal action and since the outlet is at the bottom of the casing the air is compelled to travel downwardly therethrough.

T he casing 14 provides a separating cham her, the bottom 15 provides a clean air chamber, and the nozzle 17 provides a clean air outlet for the separating chamber and an inlet for the clean air chamber. The flare of the petticoat or hood 16 is greater than the flare of the lateral Wall of the .casing .14, and due thereto the whirling up into the petticoat or hood 16, then downwardly into the nozzle 17, then into the clean air chamber, and thence through the outlet 18 into the carbureter. As the air for the engine travels upwardly into the petticoat or hood 16, that is in a direction reverse to the direction in which the whirling column of air is passing through the separating chamber, any impurities in the engine air will be precipitatedto the bottom of this chamber. The outer side i of the nozzle 17 curves downwardly and outwardly to the lower end of the lateral wall of the separating chamber, anddue thereto the dust falling on said side will be directed to the lower corner of this chamber and carried out through the discharge openmg 21 by the air passing by the nozzle 17 and out through said opening.

In order to prevent dust from entering the crank case of the engine in connection with which the air cleaner is used, the lower wall of the bottom 15 is provided with an opening 23 and a pipe 23. is secured at one end in this opening and at its other end communicates with the crank case of the engine, and the breather pipe of the engine will be closed by any suitable means to prevent the entrance of air to the crank case through such pipe. The closure, will have to be removable in order to permit oil to be poured into the crank case through the breather pipe as is now commonly practiced.

The shaft 19 of the choke valve 19 is provided with an arm 19 to which is to be connected any suitable means for controlling the choke valve 19. As the choke valve 19 provides means through the medium of which the amount of air fed to the carbureter is regulated and controlled for starting purposes and as this valve is-carried wholl by the air cleaner, the air cleaner may lie arranged in close relation. to the carburetor with the result that both" devices will require but little space. Furthermore, as the choke valve 19 is carried wholly by the air cleaner, the engine cannot be started unless the air cleaner is in place.

In practice, the cleaner is located in the air intake of the carbureter and eliminates the impurities from the air before the latter passes into the carburetor and in order to ing off through the outlet 21 carries off theimpuritiesand prevents accumulation thereof in the cleaner.

What is claimed is 1. An air cleaner of the character specified comprising a casing having an air inlet at one end and an air outlet at the opposite end and an opening adjacent the outlet for the escape of impurities eliminated from the air, a nozzle within the outlet end of the casing and a cooperating petticoat within the inlet end of the casing, said parts servingto deflect the air from a straight course to assist materially in the separation of the impurities therefrom,

2. An air cleaner of the character specified comprising a casing of the form of a truncated cone and having an air inlet at the smaller end and an air outlet at the larger end and an opening adjacent the outlet for the discharge of impurities eliminated from the air, a nozzle within the larger end of the casing, and a cooperating petticoat within the smaller end of the casing.

53, An air cleaner of the character specified comprising a casing of truncated form having a tangential inlet at the smaller end and an outlet at the larger end and an opening adjacent the outlet for the discharge of impurities, a nozzle projecting upwardly from the bottom of the casing, and a petticoat depending from the top of the casing, said petticoat being of greater flare than the outer wall of the casing,

41. -An air cleaner comprising a casing of the form of a truncated cone and having a tangential air inlet at the smaller end, a

closure for the bottom of the casing having its bottom of rounded formation and provided with an air outlet, a nozzle and an opening for the discharge of impurities separated from the air, and a petticoat depending from the upper end of the casing and of greater flare than the outer wall of the latter.

,5. An air cleaner of the character set forth, comprising a separating chamber provided with an air inlet and a dust outlet, a clean air chamber, a nozzle communicating at its discharge end with the clean air chamber and having its intake end located within the separating chamber, and a hood located within the separating chamber over the intake end of the nozzle.

6. An air cleaner of the character set forth, comprising a separating chamber provided with a tangential air inlet and a tangential dust outlet, a clean air chamber having a diametrical outlet, a nozzle communicating at its discharge end with the clean air chamber and having its intake and positioned within the separating chamber, and a hood within the separating chamber over the intake end of the nozzle.

. '7. An air cleaner of the character set forth, comprising a separating chamber provided with an air inlet and a dust outlet, a clean air chamber provided with a breather opening and a carburetor opening, a nozzle communicating at its discharge end with the clean air chamber and having its intake end located within the separating chamber, and? a hood located within the separating chamseparating chamber over the intake end of 20 her over the intake end of the nozzle,

8 An air cleaner of the character set forth, comprising a separating chamber provided with an air inlet and a dust outlet,

a clean air. chamber provided with an outlet, a choke valve located in said outlet, a nozzle communicating at its discharge end with the clean air chamber and having its intake end located within the separating chamber, and a hood located within the separating chamher over the intake end of the nozzle.

9. An air cleaner of the character set forth, comprising a separating chamber provided with a tangential air inlet and a tangential dust outlet, a clean air outlet nozzle located within the chamber and provided with a downwardly and outwardly curved outer side, and a hood positioned within the the nozzle,

10. An air cleaner of the character set forth, comprising a separating chamber pro vided at one end with a tangential air inlet and at its other end with a tangential dust outlet, a clean air discharge-nozzle arranged axially within the chamber and provided with. a downwardly and outwardly curved inner side, and a hoodlocated within the chamber over the intake end of the nozzle, the lateral walls of the chamber and hood.

being flared and the hood being arranged atthe intake end of the chamber and the nozzle at the outlet end of the chamber,

In testimony whereof we afiix our s gnatures.

CHARLES A. WINSLOW, ELBERT J. HALL.