US1588845A - Radiator - Google Patents

Description

June 15 1926.

A. LAMBLIN RADIATOR Filed July 24. 1925 5 Sheets-Sheet 1 Alexandre Lamblin I June 15 1926 A. LAMBLIN RADIATOR 5 SheetsSheet 2 Filed July 24. 1923 Alexandre Lamblin June 15 1926. I

A. LAMBLIN RADIATOR Filed July 24, 1923 5 Sheets-Sheet 5 A1 e xandre Lamblin INVENTO R:

Mlumey June 15 1926. 1,588,845

A. LAMBLIN RADIATOR Filed July 24, 1925 5 Sheets-Sheet 4 Alexandre Lamblin l! IVETNTOR; W ,3. m wrn y June 15 1926. Y 1,588,845

A. LAMBLIN RADIATOR Filed July 24. 1923 5 s t -sh t 5 Alexangire Lamblin \NVENTOR:

Patented June 15, 1926.

UNITED STATES.

H -1,sss,s4s PATENT oFFICE.

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Application fled July 21, 1928, Serial No. 853,447, and in France august 29, 1928.

'15 by meanssuch as pivoted axes or the like,

' thus permitting the pilot, at will, to vary the inclination of the longitudinal axis of the radiator with relation to the air current while maintaining the plane of the cooling 2 plates parallel to such current. By means of this arrangement the length of'contact of each streamlet of air with the cooling surface may be varied at will without, however, substantially modifying the resistance of the radiator to forward travel.

Various arrangements according to the invention are shown by way of example in the accompanying drawings in which Figures 1, 2 and 3 are respectivel an elevation, a plan and a front view a radiator according to the invention.

Figures 4 and 5 are respectively an elevation and a plan of another radiator ac cording to the invention.

Figure 6 is an elevation of a third radiator according to the invention.

Figures 7 and 8 are two elevations in two different positions of a fourth radiator according to the invention.

Figures 9 and 10 are respectively a front viewand a plan of an aircraft provided with radiators mounted in different particular positions on the hull of the machine.

Figures 11 and 12 are respectively a front view and a plan of a particular mode of mounting the radiator on an aircraft.

Figure 13 is a side view of a modification ofthe preceding radiators.

The radiator represented in Figures 1 to 3 has a front header 1 and a rear header 2. These two headers are rectilinear in form and parallel with each other and their transverse section is fiattened. The front headeris divided into two parts 14 and 15 by a transverse partition 4.

The cooling elements are'constituted in the well known manner by thin plates 3' the longitudinal section of which has an external outline or contour rounded at the two ends. These elements, which are fixed on the upper and lower faces of the headers and are held apart from each other by transverse tube stays 17, thus forming two symmetrical layers relatively to the longitudinal plane of symmetry :v-m of the radiator The part which ensures the junction of the radiator with the aircraft is as follows The front collector 1 is integral with a supporting tube 5 which turns at its two ends in bearings carried by the machine. A collar 6 ensures the fixing of each end of the tube 5 to flexible joints 7, which ensure the connection in a fluid tight manner between this tube 5 and the water jacket of the motor, while yet permitting of relative movements of the radiator with respect to the machine.

The rear header 2 is integral also with a tube '8 the two ends of which are closed and serve as pivots for a lifting mechanism not shown in the drawing.

The arrangement above described works in the following manner When the motor is running under normal conditions of cooling, the radiator occupies the position shown in full lines in Figure 1, the arrow 10 indicating the direction of the air. The height h of the stream of air which traverses the radiator and consequently the supply of air to this radiator is at a minimum.

If external conditions demand it for example if the temperature of the air rises notably, it suffices for the pilot to operate the lifting mechanism so as to raise the ends of the tube 8 and cause the radiator to turn on the axis of the tube 5 according to the arrow 11. The longitudinal axis m-w of the radiator thus assumes a position w-w inclined relatively to the direction 10 of the wind. The stream of air traversing the radiator acquires a height H. A much greater supply of air is thus obtained in the radiator and a more intense cooling.

The radiator may obviously be caused to turn on the axis of the tube 5 or according to the arrow 11, or in the reverse direction to this arrow, so as to bring the longitudinal axis of the radiator either to wwor to 410 -01 see Figure 1).

The exible tubes 7 permit of the preced- 1 ing movement of rotation of the radiator v' In the constructional forms previously but yet ensure constantly a tight joint between the tube 5 andthejacket of the motor.

The circulation of the water is indicated by the arrows in Figure2. The hot water coming from the motor arrives by the flexible tube 7 into the right hand end of the tube 5, passes into the right hand half 14 of the front collector'l, passes through the set 12 of cooling plates 3 and thusreaches the rear header 2.' The water returns to the lefthand half 15 of the front header 1 by the set 13 of cooling lates 3 and returns to the motor throug the left hand end of the tube 5 andthe corresponding flexible connection 7.

The application of this water circulating arrangement to, the variable inclination radiator forming one feature of this nven tion is very advantageous because in this arrangement. the inlet pipes are in the extension of each other and have for their axis the axis of articulation of the radiator. Consequently the-circulation of the water 5 isnot in any way troubled by the more or less great inclination taken through the longitudinal axis w'-m of the radiatorrela-- tively to the direction of the wind 10.

It has been supposed in the-constructional form shown in Figures 1 to 3 that the radiator was pivoted'about-the axis of the' tube 5 fixed .to the aircraft and arranged at the front part of the radiator, the rotation of the radiatorabout this. axis being 5 obtained by rai ing; 'or lowering the rear part of thisiradiatori 'l; in The position of the axis of articulation of the radiator on the aircraft may job viously be modified at will. For example the axis of articulation 5 may-be fixed to the rear part ofthe radiator and the inclination of this radiator obtained by raising or lowering the front part by the aid of a suitable lifting apparatus. Theiradiator may also be mounted (see Figures 4 and 5) on a central shaft 20 at'ri'ght'angles to the longitudinal 'axis-wwofsthe radiator and divided bya partition-23 intotwo .adjacent chambers 21", 22.,one serving; for the admission of hot water and the; other for the return tothe motor of the cooled water, these two chambers being connected by the pipes 24, 25 res actively to the front header 1 and the rear header 2.

It will be readily understood that by imparting by known means a rotation in the direction of the arrow 26 to the central tube 20, the longitudinal axis :v-w of the radiator can be brou ht into a osition 'w m inclined relatively to the irection.

described it has been supposed that the radiator is connected to the aircraft by a single axis of articulation fixed to the body of this machine. The radiator may however be mounted on a system of several axes of articulation connected to the body of the machine.

For example (see Figure 6) the front header 1 and the rear header 2 may be connected respectively to two links 30, 31 of different lengths and inclinations and pivoted themselves at 32, 33 to the body of the machine.

By causing the link 30 to turn by any well known means movement of the radiator relatively to the machine is obtained, the axis H of the radiatorassumin a tion a -'a: inclined relatively to t e direction of the wind.

It has been supposed in the preceding examples that the radiator is connected to the machine by articulated systems comprising one or more axes 'of articulation, ut very varied means of connection between the radiator and the machine may osibe provided which permit of a certain inclination relatively to the direction of the wind and to the machine being given to the radiator, which is the essential charcontrolled by the pilot. .It will be readily seen that in the position of the 'cam shafts shown in Figure 7 the longitudinal axis w'a: of the radiator is parallel to the direction10 of the wind while this axis as sumes-a direction w v inclined relatively to this direction 10 when the cam shafts 37, 38 are rotated so as to bring them into the position shown in Fi re" 8. The height of the stream of air is t 'us caused to pass from h to H.

The invention extends to the preceding arrangements of variable inclination radiators whatever he the position-of this radiator relatively to the machine, this radiator being capable of being placed above the hull or below it, on the side of the hull, on the wings, etc. Various positions of this kind are shown in Figures 9 and 10.

The radiator may be arranged firstly at 45 on one of the sides .of the hull 40, in which case the tube 5 is mounted in two bearings 41, connected by supporting lugs 42 to the hull 40. It Wlll be clearly seen on the left hand part of Figure 10 at :vw

and w w what the inclined positions are which the longitudinal axis H of the radiator can easily, assume.

p The radiator may also be placed at 46 below the hull 40, the tube 5 being supported by bearings 41 carried by the suspension lugs43.

The invention extends also to an application of a particular kind of the preceding arrangements of radiator with its variable inclination; It is known that the screw of the machine gives a gyroscopic movementv so that their longitudinal axis w-w 1s constantly merged with the axis y y of the machine are not parallel to the direction of the air and are not traversed by this air under the conditions of minimum resistance to the advance.,

The present invention permits of the preceding disadvantage being avoided. It extends to a radiator suspended from the machine so as to be able to be set parallel to the direction taken by the air in the gyroscopic movement imparted to it by the screw, which permits of the reduction to a minimum of the resistance of the radiator to the advance and yet procuring its maximum of efliciency. I

Thus for example the radiator may be .suspended below the hull 40 of the machine by the tube 5, as is shown in Figures 11 and 12, this radiator turning easily about the axis 5 and setting itself so that its axis wm shifted to w m is parallel to the direction 48 of the air.

In the examples previously described it has been supposed that the headers 1 and 2 were separate from each other. As shown in Figure 13 the two headers 1 and 2 may be constituted b one and the same sheet of metal 50 fol ed on itself so as to form a hollow body of tapering cross section that is to say wide at the front and sharpened off to a point at the rear, partitions 51, 52 being fixed inside this hollow body and thus forming the two headers 1 and 2.

In the arrangement shown the sheet of metal 50 guides the currents of air between the cooling elements 3 and constitutes at the same time a plane participating in the support of the machine. When the radiator is inclined relatively to the machine, the suppoflting surface of this latter is modified at m What I claim and desire to secure by Letters Patent of the United States is 1. In a cooling radiator for aircraft and other vehicles, the combination of a front .header and a rear header, longitudinally apertured plates connected to said headers, an axis of articulation arranged in an extension of one of the headers substantially perpendicular to the plane of the plates and providing a connection between the radiator and the vehicle, said axis of articulation comprising flow and return conduits for the water for the radiator and permitting the inclination of the longitudinal axis of the radiator to be varied at will with respect to the longitudinal axis of the vehicle while maintaining the plane of the plates parallel to the longitudinal axis of the vehicle.

2. In a coolin' radiator for aircraft and other vehicles, t e combination of a front header and a rear header, longitudinally apertured plates connected to said headers, an axis of articulation arranged in an extension of one of the headers substantially perpendicular to the plane of the plates and providing a connection between the radiator and the vehicle, said axis of articulation comprising a tube divided into two separate parts by a transverse septum arranged substantially in the longitudinal plane of the radiator, one of these parts constituting the water inlet conduit and the other the water outlet conduit, said axis of articulation permitting the inclination of the lon itudmal axis of the radiator to be varie at will with respect to the longitudinal axis of the vehicle while maintaining the plane of the plates parallel to the longitudinal axis of the vehlcle. V

In testimony whereof I afiix my signature.

ALEXANDRE LAMBLIN.

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