US3722395A - Combined intake and exhaust ventilator - Google Patents

Combined intake and exhaust ventilator Download PDF

Info

Publication number
US3722395A
US3722395A US00743423A US3722395DA US3722395A US 3722395 A US3722395 A US 3722395A US 00743423 A US00743423 A US 00743423A US 3722395D A US3722395D A US 3722395DA US 3722395 A US3722395 A US 3722395A
Authority
US
United States
Prior art keywords
air
wall
external wall
opening
damper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00743423A
Other languages
English (en)
Inventor
G Courchesne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Chemical Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3722395A publication Critical patent/US3722395A/en
Assigned to MITSUBISHI KASEI CORPORATION reassignment MITSUBISHI KASEI CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: MITSUBISHI CHEMICAL INDUSTRIES LIMITED
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit

Definitions

  • the present invention relates to a ventilating system for a room. i
  • the general object of the invention resides in the combination in a single apparatus of an intake and of an exhaust ventilator, the two ventilators being twinned to produce very efficient ventilation inside a room, because the system does not produce air over pressure and, therefore, allows free air circulation between the interior and the exterior of the room.
  • Another object of the invention resides in the provision of a ventilator system in which air recirculation can be varied at will in order to adjust the proportion of fresh air and the proportion of recirculated air between 100 percent fresh air and 100 percent recirculated air, the adjustment being effected in accordance with the exterior temperature in order to save the hot air of the room as much as possible in cold weather.
  • Another object of the invention resides in the provision of a ventilator system of the character described arranged in such a manner that the air stream which enters the room and the air stream which leaves the room at the inside face of the apparatus, does not mix in order to obtain a good control on the proportions of recirculated and fresh air in the mixture of air entering the room.
  • FIG. 1 is a perspective view of the apparatus in accordance with a first embodiment
  • FIGS. 2, 3, 4 and 5 are partially schematic plan view of the ventilator system showing different positions of the dampers and different operative conditions of the air blowers to obtain different conditions of ventilation;
  • FIG. 6 is a cross-section taken along line 6-6 of FIG. 3;
  • FIG. 7 is a cross-section taken along line 7-7 of FIG. 5;
  • FIG. 8 is a plan section taken along line 8--8 of FIG. of a second embodiment of the invention.
  • FIG. 9 is a plan section, similar to that of FIG. 8, but showing another position of the adjustable damper, this section being taken along line 9--9 of FIG. 12;
  • FIG. v10 is a vertical section taken along line 10-10 of FIG. 8;
  • FIG. 11 is a vertical section taken along line 11--11 of FIG. 8; 7
  • FIG. 12 is a vertical section taken along line 12-12 of FIG. 8;
  • FIG. 13 is a vertical section taken along line 1313 of FIG. 8;
  • FIG. 14 is a top plan view ,of the central portion Air opening 3 is protected by a screen 5, whereas air opening 4 may be provided with angularly adjustable louvers 6.
  • the external part of easing 1, indicated at 7, is provided along its entire surface with an external opening 8.
  • louvers 9 pivoted along their external edge 10 to the lateral walls of the casing I.
  • Louvers 9 are pivotally in terconnected at their inner edge by a common rod 11 serving to maintain the louvers parallel to one another in any adjusted angular position of the louvers.
  • These louvers are manually an'gularly adjusted by a rope or chain 12 attached to rod 11 and extending within the casing to be accessible at the inside face 2 thereof.
  • Blocking means engage the chain 12 to maintain louvers 9 in any desired angular position.
  • louvers 9 in casing 1 is disposed opposite each opening 3 and 4, an automatic independent louver system 13 and 14 respectively, each constituted by horizontally disposed slats parallel to one another and pivoted at 15 to the lateral walls of the casing and provided with a coinmon pivoted rod 16 to maintain the slats parallel, this rod preferably carrying a weight 17.
  • Louvers 13 and 14 are normally maintained in closed position under their own weight and that of weight 17 if the latter is present. Louvers 13 opposite opening 3 openwhen air moves from the room to the exterior, while louvers l4 opposite opening 4 open when air moves from the exterior to the inside of the room.
  • Two air blowers 18 and 19 are mounted in casing 1 in inverted position and opposite louvers l3 and 14 respectively. These air blowers are disposed side by side and opposite openings 3 and 4 respectively. These blowers are of known type, having paddle wheels in a casing having a lateral axial air intake and a tangential air discharge opening.
  • Each blower is rotated by its electric motor 20 and drive belt 21.
  • the two blowers are preferably ofequal capacity and each blower may have two speeds of operation.
  • a vertical wall 22 separates casing 1 in its central plane and, therefore, forms two separate chambers, each receiving the respective blowers 18, 19.
  • This partition 22 extends from inside wall 2 of the casing up to louvers 13 and 14, but terminates short of the manually-adjustable louvers 9, which extend the entire length of the casing.
  • This ventilator system operates in the following manner:
  • louvers 13 and/or 14 associated therewith are automatically closed under the action of gravity, whereby exterior air cannot enter the room and this independently of the angular position of manually-operated louvers 9.
  • blower 18 When the two blowers 18 and 19 are operating, blower 18 will exhaust stale air from the room and, at the same time, a substantially equal amount of fresh air from the exterior will be discharged into the room by blower 19, provided louvers 9 are: completely open.
  • louvers 9 By progressively closing louvers 9, a proportionately increasing amount of air from the room will be recirculated back into the room by blower 19, as indicated by arrow 23, in FIG. 2.
  • the proportion of recirculated air will mix completely with the fresh air which makes up the difference, whereby the air entering the room in accordance with arrow 24 will be at a higher temperature than the exter nal air.
  • blowers l8 and 19 can be operated, as shown in FIG. 3 for the exhaust ventilator, and in FIG. for the intake ventilator.
  • Louvers 9 can be operated by an electric motor, not
  • FIGS. 8 to 16 show a second embodiment of the invention, which is a simpler and less expensive construction and has, moreover, the advantage of being able to locate the external portion of the casing close to a wall or other'obstructions without limiting free air circulation between the inside and outside of the room.
  • the system comprises a casing 25, made of sheet metal or the like, and of generally rectangular shape.
  • This casing has an inside wall 26, a bottom 28, a top 29, terminal walls 43 and 44 and an outside wall 27.
  • the casing is adapted to be disposed either in an opening of an external wall or in a window, whereby the internal part 26 will open inside the room to be ventilated, and the external part 27 will be at the exterior of the room.
  • the casing is provided along its entire length with an opening 30, which defines the lower corner of the external end of the casing, said opening 30 being provided with screens 31 and 32 extending along the external wall 27 and the bottom 28, respectively.
  • a damper 33 extends over the entire length of casing 25. It is pivoted to the latter about axis 34 close to the external wall 27 and just over opening 30. Damper 33 is of sufficient width to completely close opening 30 when in lowered position, as shown in FIGS. and I1. Damper 33 is preferably lined on the inside with heatinsulating material 35 to prevent frost formation in cold weather. Damper 33 can be raised to completely open opening 30. Moreover, the damper can be adjusted to any intermediate angular position to open more or less opening 30.
  • Each air blower is preferably of the type having a paddle wheel with a housing having a lateral axial air intake and a tangential air discharge opening.
  • Blower 36 is arranged to suck the room air through screened opening 39 of inside wall 26 of casing 25 and to discharge this air to the outside through opening 30.
  • Blower 37 sucks exterior air through the same opening 30 and discharges said air within the room through screened opening 39.
  • the two air blowers 36 and 37 are of the type having no air intake on the side of the common motor 38.
  • Casing 25 is provided with a partition 40 arranged longitudinally and vertically within the casing on the outside of blowers 36 and 37.
  • Partition 40 joins at one end with the terminal wall 43 of casing 25 adjacent exhaust blower 36 and is provided with an opening in which is secured the discharge end of said blower 36.
  • Partition 40 joins with bottom 28 and top 29 of the casing.
  • Partition 40 is folded at right angles at 41 to form an extension 42 transverse to the casing and parallel to terminal walls 43 and 44.
  • Extension 42 is applied against the wall of the blower 37 provided with its air intake and has an opening, not shown, in communication with the air intake of blower 37.
  • Extension 42 joins with bottom 28 and top 29 of casing 25 and is in turn extended by a partition 45 parallel to inside wall 26 of the casing and surrounding the discharge opening of blower 37.
  • Partition 45 joins with the bottom 28 and top 29 of the casing and also with the terminal wall 44, whereas the other end of partition 45 is bent at right angles, as shown at 46, and
  • This partition system defines chambers for separating the air streams.
  • any proportion of fresh air can be added to the recirculated air up to percent fresh air.
  • Damper 33 can be actuated and retained in adjusted position by any appropriate system, such as the system shown in FIG. 13, and comprising an arm 49 pivoted intermediate its end at 50 to the terminal wall 43 of the casing.
  • arm 49 is pivotally connected to a free corner of damper 33 by means of link 51, whereas the other end of arm 49 protrudes from the casing inside wall 26 passing through an elongated vertical opening 52, this opening being preferably provided with notches or other means to maintain arm 49 in any adjusted angular position, to thereby maintain damper 33 in adjusted open position.
  • space 53 containing damper 33 forms a mixing chamber for the fresh air and the hot air, the proportion of the mixture being controlled by the angular position of damper 33.
  • a partial partition 54 is disposed within space 53 in alignment with partition 47.
  • Partial partition 54 is arranged in the center of the casing and joins with partition 40 and the external wall 27 and extends from bottom 28 to the level of the top of the opening of the blower 36. Consequently, damper 33 has a slot 55 for the free passage of partition 54 when the damper is closed or in any intermediate positions.
  • Damper 33 is reinforced in the zone otits slot 55 by a U-shaped element 56, the legs of which are secured to the damper and surround partial partition 54.
  • This partial partition separates the outgoing and incoming air when the damper is open, in order to permit communication of the two separate openings 30 thus formed by the partial partition, with separate conduits opening to the outside, in the case in which the apparatus of the invention would be completely disposed inside a room.
  • the apparatus of the invention is more particularly I efficient for rapidly changing the stale air of a room while conserving as much-as possible the warm air which is expensive to reheat.
  • the system of the invention can operate in a completely automatic manner by controlling the blowers by means of a thermostat set, for example, at one degree higher than the setting of the heating system thermostat and disposed at a higher level than the latter, whereby the blowers will automatically start to operate to change the air and bring in fresh air when the temperature in the top zone of the room becomes excessively high.
  • a combined exhaust and intake ventilator apparatus capable of moving air both into and out of a space to be ventilated, comprising a parallelipedic casing having top, bottom and side walls and substantially parallel internal and external walls adapted to be positioned in a space to be ventilated and to be exposed to the atmosphere respectively, said internal wall having an air intake opening and an air discharge opening disposed side by side, said external wall having an air intake opening and an air discharge opening disposed side by side between said side walls, the air intake opening of said external wall facing the air discharge opening of said internal wall and the air discharge opening of said external wall facing the air intake openingof said internal wall partition means in said casin dividing the same into lrst, second and third compar ments, first and second air blowers located in the first compartment, each consisting of a housing and of a fan located in said housing, said housing having an air inlet and an air outlet, said first and second air blowers arranged with their air outlets oppositely disposed, the air outlet of said first blower facing said internal wall air discharge opening and the air

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Air-Flow Control Members (AREA)
US00743423A 1967-08-03 1968-07-09 Combined intake and exhaust ventilator Expired - Lifetime US3722395A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA997058 1967-08-03

Publications (1)

Publication Number Publication Date
US3722395A true US3722395A (en) 1973-03-27

Family

ID=4142982

Family Applications (1)

Application Number Title Priority Date Filing Date
US00743423A Expired - Lifetime US3722395A (en) 1967-08-03 1968-07-09 Combined intake and exhaust ventilator

Country Status (7)

Country Link
US (1) US3722395A (enrdf_load_stackoverflow)
BE (1) BE717836A (enrdf_load_stackoverflow)
CH (1) CH522179A (enrdf_load_stackoverflow)
DE (2) DE6609645U (enrdf_load_stackoverflow)
DK (1) DK125344B (enrdf_load_stackoverflow)
FR (1) FR1575292A (enrdf_load_stackoverflow)
GB (1) GB1176453A (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350085A (en) * 1980-01-08 1982-09-21 Lis Ricardo B Air conditioning apparatus for farming and animal husbandry activities industrial facilities and well-being in general
WO1991010100A1 (en) * 1989-12-22 1991-07-11 Wirab System Ab Room ventilator
US5658130A (en) * 1995-12-15 1997-08-19 Holmes Products Corp. Oscillating window fan
US6241600B1 (en) * 1997-03-14 2001-06-05 Kiyomasa Uehara Ventilation device
US20050272364A1 (en) * 2004-05-21 2005-12-08 Lg Electronics Inc. Ventilating system
US20050287944A1 (en) * 2004-06-24 2005-12-29 Lg Electronics Inc. Ventilating system
US20120033952A1 (en) * 2010-08-06 2012-02-09 Dyson Technology Limited Fan assembly
US20130052933A1 (en) * 2011-08-30 2013-02-28 Hon Hai Precision Industry Co., Ltd. Air director for electronic device
US20140057033A1 (en) * 2011-09-13 2014-02-27 Conair Corporation Brewed beverage appliance and method
US20140169771A1 (en) * 2011-08-10 2014-06-19 Panasonic Corporation Heating and ventilating fan
US8932028B2 (en) 2009-03-04 2015-01-13 Dyson Technology Limited Fan assembly
US9822778B2 (en) 2012-04-19 2017-11-21 Dyson Technology Limited Fan assembly
US10145583B2 (en) 2012-04-04 2018-12-04 Dyson Technology Limited Heating apparatus
US11788741B2 (en) 2020-04-01 2023-10-17 Maxton Engineering Ltd. Window fan and method for quickly assembling and disassembling the same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD133019A3 (de) * 1976-05-10 1978-11-29 Forsch Rationalisi5Rung Fuer D Verfahren und vorrichtungen zum teilautomatisierten herstellen von dragees mit harten und weichen saccharose-staerkesirup-decken sowie schokoladendecken
CA1120770A (en) * 1978-09-18 1982-03-30 Stanley I. Martin Ventilator
DE3148357A1 (de) * 1981-12-07 1983-06-09 Wilhelm Gebhardt Gmbh, 7112 Waldenburg Zum beispiel in verbindung mit klimaanlagen zu verwendende geblaeseanordnung und mit einer solchen geblaeseanordnung ausgeruestete klimaanlage
GB2125535A (en) * 1982-08-16 1984-03-07 Hornor & Company Ventilating apparatus
CN107461804A (zh) * 2017-07-03 2017-12-12 珠海格力电器股份有限公司 镶入式室内机及其控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373496A (en) * 1941-09-08 1945-04-10 Philco Radio & Television Corp Ventilator
US3130908A (en) * 1962-02-21 1964-04-28 Fred M Henne Thermodynamically balanced heat regain system
US3367258A (en) * 1966-12-20 1968-02-06 Lohmann Appbau K G Ventilation apparatus for rooms of a building
US3463391A (en) * 1967-04-26 1969-08-26 Big Dutchman Intern Ag Air duct assembly,particularly for a stable or the like
US3487767A (en) * 1967-01-30 1970-01-06 Nordisk Ventilator Fan for the ventilation of buildings,e.g.,stables

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373496A (en) * 1941-09-08 1945-04-10 Philco Radio & Television Corp Ventilator
US3130908A (en) * 1962-02-21 1964-04-28 Fred M Henne Thermodynamically balanced heat regain system
US3367258A (en) * 1966-12-20 1968-02-06 Lohmann Appbau K G Ventilation apparatus for rooms of a building
US3487767A (en) * 1967-01-30 1970-01-06 Nordisk Ventilator Fan for the ventilation of buildings,e.g.,stables
US3463391A (en) * 1967-04-26 1969-08-26 Big Dutchman Intern Ag Air duct assembly,particularly for a stable or the like

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350085A (en) * 1980-01-08 1982-09-21 Lis Ricardo B Air conditioning apparatus for farming and animal husbandry activities industrial facilities and well-being in general
WO1991010100A1 (en) * 1989-12-22 1991-07-11 Wirab System Ab Room ventilator
US5658130A (en) * 1995-12-15 1997-08-19 Holmes Products Corp. Oscillating window fan
US6241600B1 (en) * 1997-03-14 2001-06-05 Kiyomasa Uehara Ventilation device
US7011577B2 (en) * 2004-05-21 2006-03-14 Lg Electronics Inc. Ventilating system
US20050272364A1 (en) * 2004-05-21 2005-12-08 Lg Electronics Inc. Ventilating system
US20050287944A1 (en) * 2004-06-24 2005-12-29 Lg Electronics Inc. Ventilating system
US7081049B2 (en) * 2004-06-24 2006-07-25 Lg Electronics Inc. Ventilating system
US8932028B2 (en) 2009-03-04 2015-01-13 Dyson Technology Limited Fan assembly
US9599368B2 (en) 2009-03-04 2017-03-21 Dyson Technology Limited Nozzle for bladeless fan assembly with heater
US20120033952A1 (en) * 2010-08-06 2012-02-09 Dyson Technology Limited Fan assembly
US10344773B2 (en) 2010-08-06 2019-07-09 Dyson Technology Limited Fan assembly
US8873940B2 (en) * 2010-08-06 2014-10-28 Dyson Technology Limited Fan assembly
US9194603B2 (en) * 2011-08-10 2015-11-24 Panasonic Ecology Systems Guangdong Co., Ltd. Heating and ventilating fan
US20140169771A1 (en) * 2011-08-10 2014-06-19 Panasonic Corporation Heating and ventilating fan
US20130052933A1 (en) * 2011-08-30 2013-02-28 Hon Hai Precision Industry Co., Ltd. Air director for electronic device
US8978541B2 (en) * 2011-09-13 2015-03-17 Conair Corporation Brewed beverage appliance and method
US20140057033A1 (en) * 2011-09-13 2014-02-27 Conair Corporation Brewed beverage appliance and method
US10145583B2 (en) 2012-04-04 2018-12-04 Dyson Technology Limited Heating apparatus
US9822778B2 (en) 2012-04-19 2017-11-21 Dyson Technology Limited Fan assembly
US11788741B2 (en) 2020-04-01 2023-10-17 Maxton Engineering Ltd. Window fan and method for quickly assembling and disassembling the same

Also Published As

Publication number Publication date
DK125344B (da) 1973-02-05
DE6609645U (de) 1972-08-17
GB1176453A (en) 1970-01-01
BE717836A (enrdf_load_stackoverflow) 1968-12-16
FR1575292A (enrdf_load_stackoverflow) 1969-07-18
DE1779378A1 (de) 1971-11-11
CH522179A (fr) 1972-04-30

Similar Documents

Publication Publication Date Title
US3722395A (en) Combined intake and exhaust ventilator
US3517601A (en) Air intake,mixer and recirculator system
US3246643A (en) Heating and ventilating system
US3307469A (en) Ventilating and circulating air system
NL8501652A (nl) Ventilatoreenheid.
US3018642A (en) Air conditioner
US3416329A (en) Air conditioning unit
US2157307A (en) Damper and filter arrangement for air circulating units
US3405758A (en) Air mixing apparatus with auxiliary air outlet
US3680328A (en) Air-conditioner
US2711086A (en) Self-contained air conditioning unit
KR102052348B1 (ko) 환기장치
US2909043A (en) Air conditioning unit
US3159983A (en) Air conditioning apparatus
KR102572508B1 (ko) 환기장치
KR20180051179A (ko) 전열교환기
US3211078A (en) Air curtain
US3193000A (en) Unit ventilator
CN209013431U (zh) 一种空调器壳体
US3022647A (en) Air conditioning
US2723616A (en) Ventilating and heating apparatus
US3390542A (en) Air conditioning
US2936693A (en) Air conditioners
US3289746A (en) Air conditioning apparatus
KR20180051139A (ko) 전열교환기

Legal Events

Date Code Title Description
AS Assignment

Owner name: MITSUBISHI KASEI CORPORATION, JAPAN

Free format text: CHANGE OF NAME;ASSIGNOR:MITSUBISHI CHEMICAL INDUSTRIES LIMITED;REEL/FRAME:005004/0736

Effective date: 19880601

Owner name: MITSUBISHI KASEI CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:MITSUBISHI CHEMICAL INDUSTRIES LIMITED;REEL/FRAME:005004/0736

Effective date: 19880601