AU2005100660A4 - Improved Food Fryer - Google Patents
Improved Food Fryer Download PDFInfo
- Publication number
- AU2005100660A4 AU2005100660A4 AU2005100660A AU2005100660A AU2005100660A4 AU 2005100660 A4 AU2005100660 A4 AU 2005100660A4 AU 2005100660 A AU2005100660 A AU 2005100660A AU 2005100660 A AU2005100660 A AU 2005100660A AU 2005100660 A4 AU2005100660 A4 AU 2005100660A4
- Authority
- AU
- Australia
- Prior art keywords
- bowl
- fryer
- gas heated
- burner
- burner tubes
- 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
Links
Landscapes
- Frying-Pans Or Fryers (AREA)
Description
t n Description: 0 0 tcl FIELD OF THE INVENTION: The present invention relates to cooking equipment, and in particular to gas heated food frying equipment.
BACKGROUND OF THE INVENTION: A number of gas heated food fryers are commercially available, comprising two or more metal burner tubes arranged in a fryer bowl containing frying medium (a fat or oil). These burner tubes are arranged to convey hot gasses from a burner, through 0 the frying medium, passing from the front to the rear of the bowl containing the frying medium, so tI as to heat said medium.
0 Efficient heat transfer from the burner to the frying medium is critical to the performance of food fryers, in order to: Maximise the amount of food which can be cooked in a given time.
Minimise energy usage in frying the food, and thereby to minimise costs and greenhouse gas emissions.
Maximise the rate at which the frying medium reheats after cold food is added to the fryer.
This reheating rate determines the amount of frying medium absorbed into the food during cooking, and the crispness of the finished product.
The efficiency of the heat transfer within the fryer depends upon the arrangement of the burner tubes, and the circulation of the frying medium around said tubes.
Research has shown that the arrangement of the burner tubes in fryers commercially available prior to the present invention do not optimise the circulation of frying medium around the burner tubes, thereby reducing potential heat transfer rates.
OBJECT OF THE INVENTION: It is the object of the present invention to overcome or ameliorate some of the disadvantages of the prior art, or at least to provide a useful alternative.
DESCRIPTION OF THE INVENTION: In the accompanying drawings, there is schematically depicted a fryer bowl from a gas heated food fryer of the burner tube type. Said bowl is a key component of a food fryer, forming the container for the frying medium (fat or oil) and the means of transferring heat to that medium. Said bowl and tubes are constructed of sheet metal.
O The geometry of the burner tubes and bowl shape in the present invention is arranged so as to dynamically optimise the circulation of fryer medium (depicted by the arrows arising from natural convection due to heat from the burner tubes This arrangement requires the Sinclusion of at least three burner tubes within the fryer bowl in order to maximise the available area for heat transfer. It further requires that the disposition of the tubes within the bowl is such as to allow for the balanced flow of heated oil upwards from the burner tubes and the downward flow of cooler oil to the base of the bowl for reheating.
Research has determined that within a fryer bowl of the type depicted, having an internal dimension 0 0 of less than 365 mm, optimum flow requires a clearance between the burner tubes and bowl sides of at least 35mm, a minimum space of 25mm between the closest two tubes, together with a space of at least 60mm between two of the tubes.
Claims (4)
1. A gas heated commercial fryer, containing a fryer bowl of internal width less than 365mm, containing at least three burner tubes arranged to convey combustion products from the front face of the bowl rearward through the rear face of the bowl. Said bowl having a minimum clearance between the outer surface of the burner tube closest to the bowl side, and the inner surface of said side, of at least 35mm, so as to facilitate the convection circulation of the frying medium and thereby maximise heat transfer to that medium.
2. A gas heated commercial fryer, containing a fryer bowl made of sheet metal which includes within it at least three burner tubes arranged to convey combustion products from the front face of the bowl, rearward through the rear face of the bowl. Said bowl having left and right hand sides containing no more than one bend between its upper edge and the bend which forms the bottom of the fryer bowl.
3. A gas heated commercial fryer, as described in Claim 1, having a minimum spacing between the outside of any two adjacent burner tubes of
4. A gas heated commercial fryer, according to any one of the preceding claims and described by reference to figures 1 to 3 of the accompanying drawings, wherein dimension A is a maximum of 365 mm and dimension B is a minimum of 35mm. Feature C shows the single bend described in Claim 2 above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2005100660A AU2005100660A4 (en) | 2005-08-17 | 2005-08-17 | Improved Food Fryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2005100660A AU2005100660A4 (en) | 2005-08-17 | 2005-08-17 | Improved Food Fryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2005100660A4 true AU2005100660A4 (en) | 2005-09-15 |
Family
ID=35058045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2005100660A Expired AU2005100660A4 (en) | 2005-08-17 | 2005-08-17 | Improved Food Fryer |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2005100660A4 (en) |
-
2005
- 2005-08-17 AU AU2005100660A patent/AU2005100660A4/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |