HEATING SYSTEM WITH ADJUSTABLE LOUVER
A heating system including at least one louver coupled with the housing of a heater including a blade and end caps on the blade for holding each louver in a fixed position during operation of the heater assembly, but also releasing the louver for adjustment in positioning relative to the axis of rotation of the louver to change air flow direction or other characteristics as desired.
The present invention generally relates to a louver for use with a heater assembly. In particular, the present invention includes a louver including a blade and end caps on the blade for holding each louver in a fixed position during operation of the heater assembly, but also releasing the louver for adjustment in positioning relative to the axis of rotation of the louver to change air flow direction or other characteristics as desired.
SUMMARYHeater technology includes a variety of devices to heat spaces within an environment. Gas-fired unit heaters offer one option where infrared heating is not practical due to ceiling heights, clearances to combustibles or building use, as a separated combustion unit heater. Gas-fired, tubular exchanger, induced draft, hot air heaters can be used in commercial, industrial and agricultural applications, and may feature durable, powder-coated black enamel exterior and stainless steel louvers for an exceptional aesthetic appeal, and a swept wing impeller with finger-proof fan guards for low noise operation. In the present application, it has been found that the efficiencies of these heaters can be improved with improved air flow over fixed louvers that are adjustable to a selected configuration. The selective adjustment may be available via an easily adjusted manually engageable mechanism to direct heated air to optimum locations within an environmental space at a variety of adjustment locations.
Other advantages of the present invention will be readily appreciated, as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein:
With reference to the Figures, wherein like numerals indicate like parts throughout the several views, a heater assembly 20 includes a housing 22 defining a chamber 24. As shown in
One of the plurality louvers 30 in a portion of the housing 22 is shown for example in
One of the plurality louvers 30 includes a first end cap 36 and a second end cap 38 spaced from the first end cap 36 along the louver axis A1. The first and second end caps 36, 38 engage opposite sides of the blade 34 for selective rotation of the blade 34 relative to the housing 22. Specifically referring to
The first end cap 36 has first body 42 rotatably disposed in a portion of the housing 22. The first end cap 36 defines a first blade chamber 44 in the first body 42 with a tapered configuration as shown in
As shown in
The second end cap 38 has a second body 50 rotatably disposed in the portion of the housing 22. The second end cap 38 defines a second blade chamber 52 in the second body 50 with a tapered configuration, as shown in
The second end cap 38 has a second surface 54 extending along the second body 50 with an arcuate configuration for directing air flow around the second end cap 38 for reducing turbulent air flow and drag around the second end cap 38. The second end cap 38 has a second winglet 56 extending from the second surface 54 transverse to the louver axis A1. The second winglet 56 an arcuate configuration to direct the air flow towards the blade 34 to reduce turbulent air flow between the one of the plurality of louvers 30 and the housing 22 and encourage laminar air flow over the second end cap 38 and the blade 34 to reduce drag.
The first and second end caps 36, 38 are configured to selectively lock in a selected rotational position relative to the housing 22. Specifically, one of the first and second end caps 36, 38 includes a pair of locking features 58 and the other of the first and second caps 36, 38 is spring loaded to engage the pair of locking features 58. For example, the first end cap 36 is spring loaded and the second cap 38 includes the pair of locking features 58 in the embodiment in the Figures and as set forth further below.
As shown in
The plunger 62 has a plunger shoulder 64 and a first shaft 66 extending along the louver axis A1 away from the plunger shoulder 64. As shown in
As shown in
As shown in
The second shaft 82 engages the housing 22 for coupling the first end cap 36 to the housing 22. The locking member 78 has a retaining pin 84 extending relative to the louver axis A1 away from the lock shoulder 80. The retaining pin 84 engages the housing 22 in an aperture 85 for preventing rotation of the locking member 78. Additional apertures 87 and 89 may be provided to perform the same function as aperture 85 but for additional degrees of angulations of the blade.
As shown in
As shown in
As shown in
As an operator installs the one of the plurality of louvers 30, the first shaft 66 of the first end cap 36 is disposed in the chamber 24 of the housing 22. The operator moves the one of the plurality louvers 30 along the louver axis A1 in a first direction F1 parallel to A1, as shown in
To adjust the one of the plurality louvers 30, the operator moves the one of the plurality louvers 30 along the louver axis A1 in the first direction F1 to compress the biasing member 70 and disengage the first plurality of teeth 90 of the second body 50 from the second plurality of teeth 92 of the locking member 78. The operator rotates the one of the plurality louvers 30 about the louver axis A1 to the desired angle of the one of the plurality louvers 30. As the operator rotates the one of the plurality louvers 30, the locking member 78 remains stationary and the second end cap 38 rotates about the locking member 78. The operator moves the one of the plurality louvers 30 along the louver axis A1 in a second direction F2 aided by the biasing member 70 to reengage the first plurality of teeth 90 of the second body 50 with the second plurality of teeth 92 of the locking member 78. The biasing member 70 biases the one of the plurality louvers 30 along the louver axis A1 in the second direction F2 retain the engagement of the first plurality of teeth 90 of the second body 50 with the second plurality of teeth 92 of the locking member 78 to prevent rotation of the one of the plurality louvers 30 about the louver axis A1. It is preferred that this operation be repeated for all of the louvers 30 in the housing 22, but it is not required and can be tailored or selected as desired or needed.
The invention has been described in an illustrative manner, and it is to be understood that the terminology which has been used is intended to be in the nature of words of description rather than of limitation. Many modifications and variations of the present invention are possible in light of the above teachings, and the invention may be practiced otherwise than as specifically described.
Claims
1. A heating system comprising:
- a housing through which air flows through a heating element from an inlet to an outlet;
- at least one elongated louver having a first end and a second end and a central axis of rotation;
- an element at each end of said louver to engage the housing, with a first element engaging said housing in a fixed position and also adjustable to other fixed positions and a second element engaging said housing in a resilient position to release said first element to be adjusted to a second fixed position;
- a blower for continuously forcing air through said compartment; and
- a heating element.
2. A heating system as set forth in claim 1 further comprising multiple louvers.
3. A demand radiant heating system as set forth in claim 1 wherein said louvers can be adjusted a various intervals by a disengagement and re-engagement of toothed gears disposed in said first element.
4. A demand radiant heating system as set forth in claim 1 including means disposed adjacent said burner for igniting an air/fuel mixture in said burner and for sensing a predetermined temperature of said burner.
5. A demand radiant heating system as set forth in claim 6 wherein said igniting and sensing means comprises a glow bar ignitor.
6. A louver for a heating system comprising: an elongated blade having a first end and a second end;
- a housing in which the louver is disposed, the housing defining a compartment into and out of which air flows and includes an element for heating the air passing by the heating element;
- a fan continuously forcing air into said compartment;
- said louver including elements to attach the first and the second end to the housing, comprising caps at each of the louver;
- One cap having an adjustable element relative to the housing and the other cap having a releasable element relative to the housing to permit the adjustable element to move from a first fixed position to a second fixed position.
7. An invention as set forth in claim 6 further comprising that multiple louvers are engaged with the housing.
8. A heating system comprising:
- A housing having a heating element, a fan to continuously blow air over the heating element, and an outlet for the heated air;
- At least one louver at the outlet of the housing, said louver having an axis of rotation and a mechanism to adjust the louver to alter the direction of air flow from the heating system flowing past the louver by rotation around the axis of rotation, comprising engagement elements at each end of the louver, with a first element engaging at least a portion of the housing and a second element engaging at least a portion of the housing; and
- one of said elements moveable; and
- said first element having a lock to engage at least a portion of the housing in place and release to permit the second element to rotate and return the louver to lock engagement when the release is no longer engaged.
Type: Application
Filed: Jan 9, 2015
Publication Date: Nov 16, 2017
Inventors: Joseph A. Wortman (St. Clair Shores, MI), Thomas A. Martelle (Shelby Township, MI), Kevin Blissett (Lenox Township, MI), Ken Bachorski (Warren, MI)
Application Number: 14/593,716