US922783A

US922783A - Room-heating plant.

Info

Publication number: US922783A
Application number: US42488708A
Authority: US
Inventors: Berthold Koerting
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-04-02
Filing date: 1908-04-02
Publication date: 1909-05-25
Anticipated expiration: 1926-05-25

Description

2 SHEETS-SHEET 1.

Patented May 25,1909.

B. KORTING. I ROOM HEATING PLANT. APPLICATION FILED APB. 2.1908.

fiagfazwegg B. J KORTING. BOOM HEATING PLANT. APiLIGATION FILED APB.. 2.1908. 4 22 78; Patented May 25,1909.

2 SHEETPr-SHEET 2.

I I x a? w w n n v. n n n fiwnf0r rq/J 'onrrnn strains PATENT anion.

BERTHOLD KORTING, or HANOVER,- GERMANY.

ROOM-HEATING PLANT.

Specification of Letters Patent.

Patented May 25, 1909.

Application filed April 2, 1908. Seria1 No. 424,887.

To all whom itmayconccm:

Beit known that I, BERTHOLD Kontrme, a subject of the King of Prussia, German Emperor, and resident of 30 Am Schilfgrahen, Hanover,.in the Kingdom ofPrussia,

.German' Empire, gentleman, have invented certain new and useful Im rovements in fheatin fluid to the various heaters passes 'tbr u a trunk pipe which is regulated by means of a valve actuated by a device operating by the expansionof a body under the heating action of all the rooms'fsupplied by said trunk pipe or by only some of these rooms, whereby the average temperature of all the rooms is utilizedfor effecting the regulation of a control device common to the group of rooms. Any suitable heating fluid 'suchas steam, Water or air may be emp oyed. The heaters are preferably arranged in parallel between two trunk pipes or conduits. The invention may be carried out in different ways for instance the ex anding body may be air or a liquid or a so id expanding body may be used; i if Referring now to the accompanying drawings: Figure 1 shows two rooms of a group in which the expanding body employed is air. Fig. 2 is a detail-of the actuating motor for the control device. Fig. 3 illustrates arnodification in which liquid is employed for the actuation of the control device. Fig. 4 shows a modification in which the expansion of a solid body is utilized for the actuation of the e0 trol device. Fig. 5 shows a form in which only the heat of the middle rooms in a group is utilized for heating the expanding body.

In carryingthe invention into eiiect ace, cordin to th form shown in Fig. 1 the heaters in tlie rooms are supplied by a trunk pi e b from which branches '1) lead and from the heater other branches b leadto the exhaust pipe The heating fluid is introduced to trunk pipe I) by meansof a nezzle c. The nozzle 0 is controlled by means of a valve Z connected by a rod 70 to a bellows like motor at eupper end ofwhich i s-held fixed by means of a screw or the like '5, fixed in a casto heating plants as.

- laving aroun ing a while the lowerend oI -the bellows is free. Between the bellows or motor 6, and the walls of the casing e there is left a space through'which air circulates. This circulating air is drawn from the rooms by meansof a pipe 9 provided with'openings ,h, in the various rooms. The air circulates through the pipe 9 in the direction shown by the arrows and this circulation is induced by connecting the casing e by means of a pipe (1 with the chamber of the nozzle 0, whereby the nozzle 0 acts like auinjector to induce the current of air through the casing e.

The connecting rod 76 is preferably also articulated by means of suitable links as shown in Fig. 2 to a but-.

terfly valve'm in-the pipe (1.

The operation of this device is as follows:

The hot air from the various'rooms drawn through the e enings h and the pipe 9 and the 'exteriorof the bellows like motor t causes the expansion of the liquid in the bellows and thereby operates the valve 1 when the temperaturen eaches a given amount. In this way the regulation of the temperature in the rooms is determined by the average temperature of these at the same time a rooms, while obtain simplecontrol and a o. a more even and regular heating of all therooms than has hitherto been suggested.-

In the case when -steamisused and the'injector in conse uenceforces -a mixture of steam and .-air t rough the trunk pipe, it is advisable that the quantity of air drawn in by the injector nozzle 0 through the pipe 9 should be as small as possible so as to prevent the quantity of air'passing through the pipes b becoming too great. This is for the reason that such fresh air involves a 'lossof heat and a lowering of the temperature of the fluid passing through the trunk pipe to the heaters. This quantity of air is therefore small conduit pipe 9 and further by regulat ing the-flow through'the pipes g byrneans of the valve 'm. The valve m is so arranged with relation to the rod 1:: that when "the opening of the valve 1 is increased the valve n throttles the pipe d. It will be under' stood that the same relationships hold good when air alone is supplied to the pipe I).

, Instead of using an air stream from the several rooms for efiecting the heating of an expanding body a liquid of high-expansion coefficient can be employedin conjunction with the tube 9 In this casb it is immaterial whether the volumetric changes caused I by vchanges in temperature act directly or air as desired.

through pistons on the motor i. Y The expan sion of the liquid is of course as in the above described case proportional to and dependcut on the avera e temperature of all the rooms. Such a Form of heating. device 1s shown in Fig? 3 and the rooms are provided with containers 9 which are filled with the fluid of high expansion coefficient. The

tube 9 is closed and may also be filled with a fluid of these tubes may be filled only with The tube in this case connects directly with the upper end of a cylin der in'which a piston is provided which acts upon fluid, contained in-the lower part of the cylinder, and the bellows motor The .lowerend of the motor 01 is as before free to The' move and is connected to the rod rod 7c is connected to the valve I which controls the supply of heating fluid to the pipe 6.. It will be readily seen that in this form the expansion of the liquid in'the containers .9 will cause'the closing of the valve Z. Y I According to the form of regulating device shown inFlg. 4 the group of rooms are pro vided with acomfnon regulatingdevice or valve Z which is operated by the expansion of a solid body 'i. The solid body '11 is inclosed within a tube r which is made out of a ma terial' with a lower co-eflicient of expansion than the rodi, so that when the tube 2 and the rod i are subjected to the heating action of the rooms p the-tube r expands in a direction of the arrow a; while the rod t expands in the direction y. '-As this last ex- I pension is greater than thefirst there is a re-' sultant relative movement in the direction 'of the arrow y, whereby the-actuating rod of the valve 1 is moved. The rod 01 is supported in guides within the tube 1", and

oles s are provided for circulation of the air which thus comes in contact with the inner expanding rod. In Fig. 5 there is illus-- trated a form'fin which the end rooms 1) are i switched OE and only the middle rooms are employed. for the purpose of obtaining the averagetemperature ofthe'group. A

Having thus fully described the nature of my said invention what I desire to secure by Letters Patent of the United States is 1'. In combination in aheating' lant for a plurality of rooms, heaters in' t e various rooms,. a common control device for the heaters m a group of rooms, an actuating ex- I pansion device for. said control device, said actuating device being subjected to the temperature, of the air in a plurality of the rooms to beheated. p

. 2. In combination in'a heating lant for a plurality of rooms,'heaters'in t e various rooms, a common control device forthe heaters in a group of rooms, an actuating expansron device for said control device, said actuating device being subjected to the heating action of the air in all the rooms.

3. In combination in a heating plant for f I plurality of rooms, heaters-in the various rooms; heating fluid supply pipes to said heaters, a trunk conduit from which said supply pipes lead, a control valve in the trunk pipe, an actuating expansion device for said control valve, said actuating device being subjected to the heating action of the air in a plurality of the rooms the temperature of which is to be regulatedsy 4. In combination in a heating plant for a plurality of rooms, heaters in the various rooms, hot fluid supply pipes to said heaters,

a trunk pipe fIO'Ill which said su ply pipes lead,-a controlvalve in the 'trun pipe, an

actuating expansion device for said control valve, sald actuating expanslon device com prising a fiuidcondult extendlng for part of its length through a pluralityof its rooms --'and a fluid motor receiving its motive power from the flucthating energy of the fluid in the conduit in consequence of the temperature alterations in the'rooms.

5. In combination in a heating plant for a plurality of rooms, heaters in the various rooms, hot fluid supply pipes to said heaters, a trunkpipe from which said su ply pipes lead, a control valve-in the trun'r pipe, an actuating expansion device for said control valve, said actuating expansion device com- .prising a conduit having openings therein to the various rooms, a motor, a chamber containing said motor and through which the air from said'conduit passes, and means for causing an air circulation through said conduit Y and chamber.

.6. In combination in a heating lant for a I plurality of rooms, heaters in t e. various rooms, hotfluid supply pipes to said heaters,

a trunk pipe from which said supply pipes lead, a control valve in the trunk-pipe, an v I actuating expansion device for said control valve, said actuatingexpansion device, com-[ prising a conduit passing through and having openin 's to they various. rooms, a chamber with wIii'ch said conduit communicates, an expansible closed bellows within'said chamber anddixed at one end, a connection from the. free endof said bellows to-the control which said conduit communicates, an eX- In witness whereof I have hereunto set my pansible closed. bellows within said chamber hand in the presence of two witnesses. and fixed at one end, a connection from the v free end of said bellows to the control valve, BERTHOLD KQRTING.

an injector on the trunk pipe :1 p e leadin y from the bellows containing chamger to th; ltnessezs v injector, and a control valve on said pipe and BERDING;

operated by the bellows. FRANZ. TIGGEs.