Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Iniciar sesión
Usuarios de lectores de pantalla: deben hacer clic en este enlace para utilizar el modo de accesibilidad. Este modo tiene las mismas funciones esenciales pero funciona mejor con el lector.

Patentes

  1. Búsqueda avanzada de patentes
Número de publicaciónUS2894728 A
Tipo de publicaciónConcesión
Fecha de publicación14 Jul 1959
Fecha de presentación6 Feb 1957
Fecha de prioridad6 Feb 1957
Número de publicaciónUS 2894728 A, US 2894728A, US-A-2894728, US2894728 A, US2894728A
InventoresDavis James R
Cesionario originalTrane Co
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Multi-zone air conditioning unit
US 2894728 A
Resumen  disponible en
Imágenes(2)
Previous page
Next page
Reclamaciones  disponible en
Descripción  (El texto procesado por OCR puede contener errores)

July 14, 1959 J, R, DAvls 2,894,728

MULTI-ZONE AIR CONDITIONING UNIT @MY my July 14, 1959 J. R. DAVIS 2,894,728

MULTI-ZONE AIR CONDITIONING UNIT Filed Feb. 6, 1957 2 Sheets-Sheet 2 o I 00 l0 0 I* l 000 Il l 42 0o li l 0 Il I 36 24 35 /2 22 24|| i /4 -3+|| F' 3. 72 l S JNVENToR.

JAMES R. DAVIS Bil/Mv ATTORNEYS Muur-ZONE AIR CONDITIONING .lames Davis, La Crosse, Wis., assigner to The Trane Company, La Crosse, Wis., a corporation of Wisconsin Application February 6, 1957, Serial No. 638,497 s claims. (C1. 257-.-9)

This invention relates vto air conditioning units and more particularly to air conditioning units having a heating coil, a cooling coil, dampers for varying the amount of heated and cooled air passing through each of a plurality of outlet openings and a fan for moving air through the unit.

It is an object of this invention to provide an arrangement of the fan, coils, and passageways which will eiectively divide the air into two separate streams so that the mixing of air from 'one stream to another is substantially eliminated regardless of the position of the dampers. Mixing of the two streams of air with a resulting loss in capacity and control has been a problem with prior umts of this type. In prior units when the dampers were positioned for 100% cold air the effect of the heating coil -would reduce the cooling capacity as much as to l0 percent.

It is another object of the invention to provide a fan Iwhich is easily manufactured and assembled in the unit and which is particularly adapted to cooperate with the other elements of the unit in accomplishing the function 'of the unit.

Other objects and advantages of the invention will become apparent as the specilication proceeds to describe the invention with reference to the accompanying drawings in which:

Fig. 1 is a view in elevation of the outlet side of the unit of this invention;

Fig. 2 is an end elevational view of the unit with portions of the casing broken away to show the interior construction;

Fig. 3 is a perspective view with portions of the casing broken away to show the interior construction.

Referring now to the drawings, the unit has a damper section 10, a coil section 12, and a fan section 14. The sections 10, 12, and 14 fastened together in any suitable manner as by bolts not shown.

A cross-how fan wheel 22 having forwardly curved blades 24 is secured to a shaft 26 which is suitably supported in bearings at the ends of the unit and rotatably driven from a motor 28 through a motor pulley 30 and a belt 32. The fan wheels 22 have a plurality of spaced hub plates 33 for supporting the fan wheel 22 on the shaft 26 along its length. Air enters the fan wheel 22 through an opening 35 in the fan section 14. The air is discharged from the fan wheel 22 between the block-Otis 34 and 36. Block-offs 34 and 36 define the discharge area and prevent reverse flow of air from the discharge side to the inlet side of the fan wheel 22. A divider 38 extends from end to end of the fan section 14 and from the coil section 12 to close proximity with respect to the fan wheel 22 to divide the air discharged from the fan Wheel 22 into two separate streams one of which Hows through the heating coil 40 and the other of which flows through the cooling coil 42.

The damper section has a wall 46 for separating the two air streams. A pair of spaced channels 48 and 50 extend from end to end of the damper section 10 and nitcd States Patent F 2,894,728 Patented July 14, 1959 ICC channels 52 and 54 extend across the ends of channels 48 and 50 to form therewith a rectangular opening. A plurality of zone partitions 56 divide the opening dened by channels 4 8, 50, 52 and 54 into a plurality of zone open` ings. Shafts S8 are pivotally mounted in channels 48.

stance starting at the left in Figure 1, the rst two zone'I openings have their dampers arranged for connection ofv one zone duct, and the next three zone openings have their dampers arranged for connection of a second zone duct. The dampers which serve each zone duct areconnected in a common and well known manner by suitable cranks and links to one of damper motors 64 as is clearly shown in Figure 1.

Secured to each end of the unit is a condensate shield 66 which has its lower end extending into a condensate drain cup 68. The condensate vwhich drips from theends of the cooling coil 42 is conducted by the condensate shield 66 into the condensate drain cup 68. Eachl drain cup 68 has a trap drain pipe 70 which conductsV con- Although a unit having one fan has been shown'gtanddescribed, it should be understood that units having more than one fan are contemplated. While we have described preferred embodiments of our invention, we contemplate that many changes may be made without departing from the scope or spirit of our invention and we desire to be limited only by the claims.

I claim:

l. An air conditioning unit comprising a rectangular casing, one end of said casing having a longitudinal rectangular inlet opening extending substantially the entire length of said one end of said casing, a cross-How fan wheel in said casing, means rotatably mounting said cross-ow fan wheel on said casing, said cross-ow fan wheel having its length greater than its diameter and being positioned adjacent the inlet opening in said one end of said casing and having its major axis extending substantially the entire length of the inlet opening, a first block-oit member secured to said casing and extending inwardly from one side of Said inlet opening and surrounding a portion only of the periphery of said crossow fan Wheel along substantially its entire length, a second block-cti member secured to said casing and extending inwardly from the other side of the inlet opening and surrounding a second portion of the periphery of said cross-flow fan wheel along substantially its entire length, a partition secured to said casing and extending between the sides of said casing to form with said casing two air passageways, said partition extending substantially to the periphery of said cross-dow fan wheel at a portion of the periphery between and spaced from said first and said second block-ott members to divide the air delivered from said cross-How fan into two streams, a heating coil Secured to said casing and being positioned in one of said passageways and a cooling coil secured to said casing and being positioned in the other of said passageways.

2. An air conditioning unit comprising a rectangular casing, one end of said casing having a longitudinal rectangular inlet opening, a cross-How fan 'wheel in said casing, means rotatably mounting said cross-How fan lwheel on said casing, said cross-How fan wheel having its length greater than its diameter and being positioned adjacent the longitudinal rectangular inlet opening in said one end of said casing with the major axis of said crossflow fan wheel substantially parallel to the major axis of the longitudinal rectangular inlet opening, a first blockoff member Secured to said casing and extending inwardly from one side of said inlet opening and surrounding a portion only of the periphery of said cross-ow'fan wheel along substantially its entire length, a second block-oit member secured to said casing and extending inwardly from the other Side of the inlet opening and surrounding a. second portion of the periphery of said cross-dow fan wheel along Substantially its entire length, a partition secured to said casing and extending between the sides of said casing to form With said casing'two air passageways, said partition extending between the sides of said casing to form with said casing two air passageways, said partition extending substantially to the periphery of said crossow fan wheel at a portion of the periphery between and spaced from said first and said second block-off members to divide the air delivered trorn said crossilow fan into tWo streams, a heating coil secured to said casing and being positioned in one of said passageways, a cooling coil secured to said casing and being positioned in the other of said passageways, and dampers adjustably mounted in said casing in both of said passageways, and means for adjustably positioning said dampers to vary the volume rates of air tlow through each of said passageways.

3. An air Conditioning unit comprising a rectangular casing, one end of said casing having a longitudinal rectangular inlet opening, a cross-flow fan wheel in said casing, means rotatably mounting said cross-flow fan wheel on said casing, said cross-flow fan Wheel being positioned adjacent the inlet opening with its axis of rotation parallel to the plane of said inlet opening, a

first blocko member secured to said casing and extending inwardly from one longitudinal side of said inlet opening and surrounding a portion only of the periphery of said cross-ow fan wheel along substantially its entire length, a second block-oft member secured to said casing and extending inwardly from the other longitudinal side of said inlet opening and surrounding a second portion of the periphery of said cross-flow fan Iwheel along substantially its entire length, said rst block-oi member and said Second block-oit member each having a vane portion extending outwardly with respect to the `crossow fan wheel to guide the air discharged from said cross-W fan wheel, a partition secured to said casing and extending between the sides of said casing to farm with said casing two air passageways, said partition extending substantially to the periphery of said cross-flow fan wheel, said partition being between and spaced from the vane portions of said first and second block-erts, said partition being inclined with respect to the vane portions of said iirst and second block-ofic members to provide diverging discharge ducts, a heating :coil secured to said casing and being positioned in one of said passageways and a cooling coil secured to said casing and being positioned in lthe other of said passageways.

References Cited in the le of this patent UNITED STATES PATENTS 2,001,834 Carson May 21, 1935 2,093,306 Carson Sept. 14, 1937 2,238,688 Guler Apr. 15, 1941 2,292,335 Durbin Aug. 4, 1942 FOREIGN PATENTS 394,589 France Ian, 27, 1909

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US2001834 *31 May 193021 May 1935Clifford C CarsonVertical unit heater
US2093306 *9 Oct 192914 Sep 1937Clifford C CarsonHeater
US2238688 *16 Jun 193815 Abr 1941Honeywell Regulator CoAir conditioning system
US2292335 *27 Ago 19414 Ago 1942Stephen A DurbinAir conditioning apparatus
FR394589A * Título no disponible
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US3141454 *13 Feb 196121 Jul 1964Laing NikolausHeat storage apparatus
US3177794 *14 Abr 196013 Abr 1965Nikolaus LaingAutomobile-windshield defroster
US3387647 *15 Ago 196611 Jun 1968Gordon Gallie DanielAir treating means including an air flow directing system
US3394754 *8 Ago 196630 Jul 1968Mammtoth Ind IncMethod and apparatus for controlling air flow
US3592260 *5 Dic 196913 Jul 1971Espey Mfg & Electronics CorpHeat exchanger with inner guide strip
US3708011 *10 Dic 19702 Ene 1973A SerrattoLocal air conditioning apparatus
US3940215 *26 Dic 197324 Feb 1976Matsushita Electric Industrial Co., Ltd.Blower
US4002109 *30 May 197511 Ene 1977Matsushita Electric Industrial Co., Ltd.Blower
US4821796 *9 Jun 198818 Abr 1989Aurora Konrad G. Schulz Gmbh & Co.Device for heating compartments
US4854726 *29 May 19868 Ago 1989Hughes Aircraft CompanyThermal stress screening system
US7259961 *24 Jun 200421 Ago 2007Intel CorporationReconfigurable airflow director for modular blade chassis
Clasificaciones
Clasificación de EE.UU.165/61, 165/126, 415/53.1, 415/208.1
Clasificación internacionalF04D17/00, F24F3/044, F24F3/052, F04D17/04
Clasificación cooperativaF04D17/04, F24F3/0527
Clasificación europeaF24F3/052F, F04D17/04