US1621065A - By samuel - Google Patents

Description

March 15 1927.

F. M. FURBER TEMPERATURE CONTROLLING APPARATUS FOR INTERNAL COMBUSTION ENGINES Original Filed Feb. 18

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Patented Mar. 15, 1927.

UNITED STATES PATENT QFFICE.

FREDERICK M. FURBER, DECEASED, LATE OI REVERE, MASSACHUSETTS; BY SAMUEL R. CUTLER, ADMINISTRATOR, OF

REVERE, MASSACHUSETTS, ASSIGNOR TO CHARLES A. PIPENHAGEN, OF CHICAGO, ILLINOIS, ATE-ID JAMES F. RALEIGH, OF

RIVER FOREST, ILLINOIS.

TEMPERATURE-CONTROLLING APPARATUS FGR INTERNAL-COMBUSTION ENGINES.

Original application filed. February 16, 1918, Serial No. 217,689. Divided and this application filed May 7, 1926. Serial No. 107,360.

This invention relates to temperature controlling apparatus for internal combustlon engines.

For many years it has been customary to equip internal combustion engines, particularly automobile internal combustion engines, with shutters to control the supply of cooling air to the engine and/or the cooling system thereof. In the case of water cooled internal combustion engines, the

shutters have usually been associated with the engine radiator to control the flow of air through the radiator.

The invention hereinafter described and claimed contemplates the provision of shut ters which automatically close when the en gine stops but which have any open position which they assume determined by manually operated means under the control of the operator.

The present application is a division of application Serial No. 217,689, filed February 16, 1918.

In the accompanying drawings illustrating the invention,

Figure 1 is an elevational view, partly in section, illustrating a water cooled automobile internal combustion engine equipped with the improvements of the present invention; and

Figure 2 is a fragmentary view on somewhat larger scale, which shows, among other things, the suction-operated clutch mecha nism in section.

Similar characters of reference refer to similar parts throughout the drawings.

The drawings show an internal combustion engine 2 of a. type commonly used in motor vehicles, and a water cooling system for said engine which comprises aradiator 4, a connection 6 leading from the upper end of the engine water jacket to the upper part of the radiator, and another connection 8 leading from the lower end of the radiator to the lower part of the engine water acket. The arrangement shown is of the thermosiphon type although it will be understood that the invention is equally adapted to a pump system. In the normal operation of the engine the hot water leaving the upper part of the engine water jacket passes through the connection 6 into the upper end of the radiator and flows downwardly through the radiator where it is cooled, and then returns through the connection 8 to the jacket. During the descent of the water through the radiator 4:, a large portion of its heat is dissipated to the air which is forced through the radiator partly by the motion of the vehicle and more particularly by the action of a fan (not shown). The means for controlling the heat radiating action of the cooling system hereinbefore briefly described. comprises a series of shutters 10 mounted in front of the radiator frame or casing and arranged to swing about horizontal pivots 12 into either an open position, as shown in Figure 2, a closed position as shown in Figure 1, or any intermediate position.

It will be noted that the shutters 10 are provided with a common operating bar 14: so that all of the shutters will be operated in unison. One of the shutters is provided with an actuating arm 16 which is connected by a link 18 with a lever 20, which is pivoted at 22 to the radiator casing or some other suitable stationary part of the vehicle. A spring 24 acting between the lever 20 and the radiator frame, or some other stationary part of the vehicle. at all times tends to hold the shutters 10 in closed position.

As thus far described. the apparatus does not or need not differ essentially from temierature controlling shutter apparatus heretofore employed. in connection with automobile internal combustion engines.

Description will now he made of that part of the apparatus which distinguishes the present invention from the prior art.

Pivoted to the lever 20., at 26, is a rod 28 which has a snug sliding fit in the base member 30 of a cylinder 32. The upper end of the rod 28 is connected with a piston 34 which operates in cylinder 32. A rubber or leather washer 36 may be used under the piston to seal the opening through which rod 28 slides when the piston is at the lower end of its stroke.

The cylinder base 30 is conformed to provide a nipple 38 for cooperation with one end of a conduit 40 (conveniently flexible) which communicates with a passage 42 which opensintosthe cylinder 32 below the piston previously mentioned. The other end of the conduit communicates with the intake manifold 44 of the engine. It will thus be understood that the suction which always exists in the manifold li, to a greater or less degree, when the engine is in operation, always tends to draw the piston 3i and the cylinder 32 into therelative positions shown in Figure 2 when the engine is in operation. An aperture 46 is "formed in the top of the cylinder 32 in order that the suction clutch,

constituted by the cylinder and piston,

readilymay respond-to manifold suction.

The-upper end 0'? the cylinder is fixed to'the lower end of a rod a6 which has its upper end pivoted to bell crank lever i8 which is pivotally supported by abracliet- 50 which may be carried by the radiator frame as shown.

Pivot-ally connected with the bell crank lever 48 is.an operating rod 52 which extends rearwardly' through the dash 5th of the vehicle and isprovided. with a button or han tile 56 for convenient manipulation by the operator of the vehicle. It will be noted that the lower side ot'the rod 52. (at the end thereof nearest the operator) is toothed to cooperate with a projection 58 and that a spring 60, bearing against the rod 52,-serves yieldingly to maintain engagement of the projection58 with any notch in which it may be lodged.

The range of travel of the piston 34 in cylinder 32 is preferably suiiicient topermit the complete closing of the shutters by spring 24, when the engine stops, regardless of the position of rod 52.

By virtue of the construction shown, the

manifold suction of the engine acting upon thepneumatic clutch. constituted bythe cylinder 32 and piston 3%. will always serve to ters immediately to close under the influence of spring-24L, whenever the engine stops. It will be understood. however, that whenever operation of the engine is resumed, the shutters will open under the influenceof engine suction, to such open or partially opened positionas .may previously have been determined .by the manual positioning of rod 52.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent 01 the United States is:

l. lhe combination with a shutter for the radiator oi. an internal combustion engine. manually controlled means tor opening said shutter. and automatic means for causing the shutter to close when the-engine stops.

2. In combination with a shutter for the radiator of an internal combustion engine,

manually controlled means for opening the shutter, and automatic means rendering the manually controlled means capable of holding the shutter open only when the engine is in operation.

3. The combination with a shutter for the radiator 0t internal con'ibustic-n engine, iii-cans for normally closing said shutter, a n'ianually actuated shutter control device, and means operatively connecting the shutter with said manually actuated device when and only when the engine is in operation.

4:. The combination with a shutter for the radiator of an internal combustion engine, means for normally closing said shuttena manually actuated shutter control device, and means operated by engine suction adaptedoperatirely to connect the shutter with said manually actuated device when and only when the engine is in operation.

5. The combination with a shutter tor the radiator of an internal combustion engine, manually actuated operating device for said Snutter, means for holding said inanually actuated device in each of several adjustments. and means for establishing an operating connection between the shutter-and said manually actuated device when and only when the engine is inoperation.

6. The combination with a shutter tor the radiator of an internal combustion engine of a motor vehicle. engine actuated means for openin the shutter and means manually adjustable from thedrivers position for determining-theextent to which the engine actuated means may open the shutter.

7. in combination with a shutter for the radiator of an internal combustionengine 0t motor vehicle, engine actuated means tor opening said shutter, and u'ieans manually adjustable from the drivers position forcontrolling the engine actuated means.

8. In combination with a shutter torthe radiator o'fian automobile internal combustion engine, manually actuated means atthe drivers position for adjusting the shutter during the operation of the engine. and engine actuated means cooperating with the manuallyactuated means to hold the shutters in adjusted position during engine operation, said engineactuated means permitting; the shutters to close when the engine stops.

9. In combination with a shutter for an 10. I11 combination with a shutter -tor an automobile engine radiator, engine operated means for opening said shutter, and manually actuated means operable from the position of the driver for determining the ex tent to which the shutter may be opened by the engine operated means.

11. In combination with a shutter for an automobile internal combustion engine radiator, a spring tending to hold the shutter closed, an engine operated device adapted to open the shutter when the engine is in operation, and manually adjustable means operable from the position of the driver for determining the extent to which the shutter may be opened by the engine operated means.

12. In combination with a shutter for an engine radiator, a manually operable actuating device therefor, and engine actuated means for maintaining the shutter under the control of the manually operable means when the engine is in operation.

13. In combination with a shutter for an engine radiator, a manually operable actuating device therefor, engine actuated means for maintaining the shutters under the control of the manually operable means when the engine is in operation, and means for closing the shutter when the engine stops.

14. In combination with a shutter for an automobile engine radiator, manually operable means at the drivers position for determining the extent to which the Shutter may open and engine actuated means for opening the shutter, during engine operation, to a degree determined by the manually operable means.

15. In combination with a shutter for an engine radiator, spring means tending to close the shutter, a manually adjustable controlling device, a shutter actuating member, and engine operated means for operatively clutching the manually operable controlling device to said actuating member during engine operation.

16. In combination with a shutter for an engine radiator, spring means tending to close the shutter, a manually adjustable controlling device, a shutter actuating member, and means operated by engine suction for operatively clutching the manually operable controlling device to said actuating member during engine operation.

17. I11 combination with a shutter for an engine radiator, means tending to close the shutter, a manually adjustable controlling device, a shutter actuating member, and means for operatively connecting said controlling device with the shutter when and only when the engine is in operation.

18. In combination with a shutter for an engine radiator, a cylinder, a piston operating in the cylinder, a manually operated controlling device, one of the elements of the cylinder-piston structure being connected with the manually operated controlling device, the other of said elements being connected with the shutter, and means for applying engine suction to said piston and cylinder, during engine operation, to open the shutter to a position determined by the adjust-ment of the manually operated control device.

19. In combination with an engine radiator shutter, spring means tending to close said shutter, a manually operable actuating member, means for retaining said actuatinomember in any of several adjustments, and a connection between said actuating member and the shutter comprising a pair of telescoping suction actuated members which permit the connection between the shutter and actuating member to be lengthened or shortened, and means for applying engine suction to the telescoping members to lengthen said connection and open the shutter to a degree determined by the setting of the manually operable actuating member.

In witness whereof I hereunto subscribe my name this 23rd day of April, 1926.

SAMUEL R. CUTLER, Administrator of the Estate of Fredeficlc M. Furber, Deceased.

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