US2135827A

US2135827A - Automobile heater

Info

Publication number: US2135827A
Application number: US131905A
Authority: US
Inventors: Mathew J Marty
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-03-19
Filing date: 1937-03-19
Publication date: 1938-11-08
Anticipated expiration: 1955-11-08

Description

Nov, 8, 1938. MARTY AUTOMOBILE HEATER Filed March 19, 1937 2 Sheets-Sheet l l/ I I .fizwezzrr' MTHEWJMARTY M. J. MARTY I 2,135,827

AUTOMOBILE HEATER Filed March 19, 1937 2 Sheets-Sheet 2 flag/ MA THEW J; MARTY Patented Nov. 8, 1938 I 2,135,827

UNITED STATES PATENT OFFICE AUTOMOBILE HEATER Mathew J. Marty, Chicago, Ill.

Application March 19, 1937, Serial No. 131,905

Claims. (Cl; 230119) My invention relates to heaters for warming Fig. 2 is a view looking at the side of the the interiors of vehicles having closed bodies, and heater with portions broken away and in section. it has special reference to the type of heater Fig. 3 is a view in detail of the fan chamber wherein hot fluid from the engine cooling system removed from the housing and shown in trans- 5 is circulated in a small radia or and a current of verse vertical section.

air is forced-through such radiator for distribution Fig. 4 is a vertical axial section taken on line within the vehicle body. 4-4 of Fig. 3.

The aim of the present invention is to distribute Fig. 5 is a view on a smaller scale showing a the heated air in a plurality of directions outward modified form of fan. from the casing in which the heat unit is housed The drawings are to be understood as being 10 so that these separate currents of air may be somewhat schematic, and they are for the purpose utilized for different purposes. For example, one of disclosing a typical or preferred form in which current of air is discharged through the fi out of this'invention may be made, and in thete drawthe housing for warming the vehicle interior, ings like reference characters are used to desigwhile another current of air, which is discharged nate like parts wherever such parts appear in the 15 preferably in a tangent direction, may be utilized difierent views. for the purpose of defrosting the windshield of The heater unit is preferably of the usual tube the vehicle. If desired, however,- the second curand fin type having headers or chambers at rent of air, instead of being used to defrost, may the ends of the tubes, one of which headers rebe directed toward the feet of the person sitting ceives the heated fluid from the engine cooling 20 to one side of the heater rather than the person system and the other header returns thefluid to who may be seated directly in front of the heater. the cooling system after passage through the In connection with this present invention the tubes. The before-mentioned structure is usumain current of heated air is discharged, preferally designated as the core or unit and has been 23 ably straight out or axially from the pan or blower identified herein as a whole by the numeral 6. 5 5 and the other current of air is discharged tangent There is a housing that partially surrounds this to the fan or blower. In order to do this the core 6 and is anchored in some suitable manner fan is positioned so that it rotates within an to the dash board of the vehicle and the pipes to annular fan-chamber of p f r ly ch n led and from the headers project through the dash shape in cross-section. This fan-chamber has a board. A somewhat cylindrical wall 1 of this 30 d ar n zzl xt nding an en to h nhousing is shown at the right in Fig. 2 and there I181; and the fan is preferably disposed S ight y is an inner annular flange 8 that extends ineccentric within the chamber so that the outer wardly alongside the adjacent walls of the edges of the blades are Spaced farther from e headers, and there is a similar flange at the oppoas yl n W Of the chamber as y ppr h site side of the core 6 so that the latter is enthe nozzle than at other locations remote to the closed by the housing and openings of substannoZZlo Which thus Permits the pressure to ho tial dimensions are provided at the front and buil -up at th p p pla f d s a through rear of the structure for passage of air through the nozzle. the core. In the usual practice, a fan or the I some of the objects and advantages of the like is mounted at the rear of the core and housing 40 present structure are that it is novel in construct drive air through th core to heat such air by tion; t s mad f s u dy parts to w thstand intimate contact with the tubes of the core. In hard usage; it is dependable in operation; it is my improved structure I prefer to have the fan ea y t j t d op and it is economical as disposed in front of the core where it will draw to manufacture o t it y be Sold to the or suck the air through the latter. However, 45 user for a reasonable retail p Further it will be understood the fan may be dispofed in je ts and advantages Will b obvious o persons either of the positions mentioned depending upon skilled in the art after the device is understood the use to which the apparatus is put.

from the following description taken in con nec- Th fan chamber is in the form of a casting.

tion w t e accompanying drawings that/form as shown in Figs. 3 and 4 and consists'of a cylin- 50 a P horoindrical wall 9 having inwardly disposed annularly In the drawings: flanges l0, it). These flanges extend toward each Fig. 1 is a vertical elevation of the improved other and they are of gradually increasing width heater withaportion of the adiacent wall removed from the top toward the bottom of the fan for clearness. chamber and the inner edges of these flanges 55 describe a circle that is eccentric to the periphery of the cylindrical wall 9. At a location tangent to the lower arc of the cylindrical wall there is a -discharge nozzle ll of tubular form through which air may be discharged in a direction transverse to the axis of rotation of the fan. In Fig. 3 the line of travel of the edges of the fan blades is indicated by the dot-dash line Discharge of air through the nozzle II is controlled by means of a disk-valve l2 mounted upon a rotatable spindle l3 that has transversely disposed bearings in opposite sides of the nozzle, and one end of which projects outside the wall of the nozzle where it is bent to form a lateral operating handle I4.

A spider consisting of a plurality of radially disposed arms l5 extends from the outer flange ID of the fan chamber, which said arms are bowed slightly as seen in Fig. 4 and have their inner ends joined to a concave seat or saddle I6 in .which the fan motor I! is mounted. The motor is held in this seat by means of a strap l8 that has its ends clamped in position by bolts 19. The shaft 20 of the motor projects into the fan chamber and has the hub 2| of the fan secured to it. The blades 22 of the fan project radially from the hub and their outer edges are disposed slightly inside the edges of the flanges ID of the fan-chamber. As is clearly shown in the drawings the fan is eccentric to the cylindrical wall 9 of the chamber so as to dispose the blades closer to the top portion of the cylindrical wall 9 than at the opposite portion of said wall. When the fan is rapidly rotated the pressure gradually builds up in the deepest or widest portion space between the peripheral edges of the blades and the cylindrical wall 9 of the fan chamber and this built-up air pressure is discharged through the nozzle H. The fan blades creat a draft of air in an axial direction and will cause air to flow through the core of the heater in the manner shown by the arrows in Fig. 2. The current of air becomes divided, so that a portion leaves the peripheral portions of the blades to be directed into the channel of the fan-chamber and the remaining portion of the air current is discharged axially through the front of the structure.

The motor, as seen in Fig. 2 extends beyond the fan chamber and a suitable guard or shell 23 houses the motor and is provided with a plurality of apertures through which the air may be discharged. The fan-chamber has a plurality of lateral lugs or ears 25 whereby it may be mounted upon the housing 1 by means of the screws or the like. It will be seen the fan-chamber and fan, together with the motor and its guard shell may be made in the form ofa unit which may be assembled as such and then conveniently mounted upon the housing 1 of the heater core.

In Fig. 5 is shown a different type of fan embodying a plurality of blades 26 extending radially from a hub 21 and having their outer edges connected by an annular or circumferential band 28, and a plurality of fins or paddle-wheel blades projecting radially from the band 28. With this form of fan the annular or peripheral current of air is created in the fan-chamber by the paddlewheel blades 29, while the obliquely disposed blades 26 create the current which moves the air through the heater core and discharges a portion of the heated air through the front of the struc-' ture.

The air whichis discharged from the nozzle H is a portion of the air that passes through the heater core and is therefore of a higher temperature than the air within the vehicle body This tangent current of air may be directed toward the feet of the driver of the vehicle, when the heater is mounted on the right side of the dash board, or such. air may be conveyed by a hose to the windshield and discharged thereon for the purpose of defrosting the surface thereof.

It will be obvious that the fan chamber unit, whichincludesthemotor and fan, may be mounted upon the opposite side of the heater core and therefore adjacent the dash board. In this posi tion the air will be driven from the rear through the heater core where it is raised in temperature and from whence it is discharged into the vehicle for warming the latter. However, the air discharged through the nozzle ll would not be heated air but may nevertheless be used for the purpose of defrosting the windshield.

The structure disclosed herein isof course susceptible of various arrangements other than those herein specifically disclosed. I believe I am the first to utilize a fan-chamber upon one of the faces of a heater unit for building up a current of air-pressure adjacent the peripheral path of movement of the fan blades and discharging the annular current tangent to the rotational axis of the fan. It is obvious this fan-chamber need not be of a circular outline as shown but it may be an ovoid or it may have rectangular portions as desired or convenient. Furthermore, I am not aware of the use of an eccentrically disposed fan in a fan-chamber or the prior use of a fan-chamber in which walls are provided that are gradually increased in dimensions similar to the flanges IU of my present structure regardless of whether the axis of the fan is eccentric to the center of the chamber. Hence it is to be understood that I make broad-claim to the abovenamed features of construction, and limited interpretations are not to be placed upon the language of the claims appended hereto.

What is claimed is:-

l. A fan unit for automobile heaters comprising a casing embodying a substantially cylindrical wall and having a tangentially arranged discharge port; a saddle associated with the wall of said casing; a motor mounted in said saddle; a multi-blade fan operatively connected with said motor and rotatable in said casing, the axis of said cylindrical casing wall being eccentric with respect to the axis of rotation of said fan, said cylindrical casing wall-terminating at each side flanges defining relatively wide circular openings in opposite sides of said casing whereby a portion of the air from the fan is discharged through said tangential discharge port, while the remain ing portion of air from the fan is discharged axially through one of said relatively wide openings. 1

2. A fan unit for automobile heaters comprising a casing embodyinga substantially cylindrical wall and having a tangentially arranged discharge port; means associated with the wall of said casing forming a saddle; a motor mounted in said saddle; a fan operatively connected with said motor and rotatable within said casing, the axis of said cylindrical casingwall being out of alignment with the axis of rotation of said fan,

from the edges of said wall, said flanges forming with said wall a shallow chamber overtaking the tips of the fan blades, said flanges defining reatively wide circular air inlet and discharge openings in opposite sides of said casing whereby a portion of the air drawn into said fan through said inlet opening is discharged through the tangential discharge port in said casing, the remaining air from the fan being discharged axially through the discharge opening formed by one of the flanges on said casing,

3; A fan unit for automobile heaters comprising a casing embodying a substantially cylindrical wall and having a tangentially arranged discharge port; a fan rotatable in said casing, the axis of said cylindrical casing wall being out of alignment with the axis of rotation of said fan, said cylindrical casing wall terminating at each side of said fan in spaced annular flanges of, gradually increasing width projecting inwardly from the edges of said wall, said flanges defining relatively wide air inlet and discharge openings in opposite sides of said casing, said fan and casing being arranged whereby a portion of the air drawn into said fan through one of said air inlet openings is discharged through said tangential discharge port in the wall of said casing while the remaining air discharged by the fan passes axially through said relatively wide openings; a saddle associated with said casing and arranged on the air discharge side of said casing; and a motor carried by said saddle and operatively connected to said fan.

4. A fan unit for automobile heaters comprising a casing embodying a substantially cylindrical wall and having a tangentially arranged discharge port; means associated with the wall of said casing forming a saddle; a motor mounted in said saddle; a fan operatively connected with said motor and rotatable in said casing, the axis of said cylindrical casing wall being eccentric with respect to the axis of rotation of said fan, said cylindrical casing wall terminating at each side of said fan in spaced annular flanges of gradually increasing width projecting inwardly from the edges of said wall, said flanges defining relatively wide air inlet and discharge openings in opposite sides of said casing whereby a portion of the air drawn axially into said fan through the wide inlet opening is discharged through said tangential discharge port in said casing and the remaining portion of air from the fan discharged axially through the other of said relatively wide openings.

5. A fan unit for automobile heaters comprising a casing embodying a substantially cylindrical wall and having a tangentially arranged discharge port; a valve in said port for regulating the air flow therethrough; a saddle associated with said casing; a motor mounted in said saddle; a fan operatively connected with said motor and rotatable in said casing, said cylindrical casing wall terminating at each side of'said fan in spaced annular flanges, said flanges defining relatively wide circular air inlet and discharge openings in opposite sides of the casing whereby a portion of the air drawn into said fan through the inlet opening is discharged through the tangential discharge port in'said casing, the remaining air from the fan being discharged axially through the discharge opening formed by one of the flanges on said casing.

MATHEW J. MARTY.