Oven and a food delivery vehicle comprising said oven
A convection oven for use in a food delivery vehicle comprises an oven cavity with an air inlet and an air outlet, an air feed conduit for feeding an air feed into the oven cavity through the air inlet and a heating arrangement for heating the air feed before it is fed into the oven cavity, the heating arrangement comprising a heating device that is electrically powered and being arranged to maintain a temperature of at least 130° C. in the oven cavity. A food delivery vehicle may comprise such an oven and the oven may be heatable from an electric current provided by the engine of the vehicle.
1. A convection oven for use in a vehicle, the oven comprising:
an oven chamber with an air inlet and an air outlet,
an air feed conduit feeding an air feed into the oven chamber through the air inlet; and
a heating arrangement heating the air feed before it is fed into the oven chamber, the heating arrangement being arranged to maintain a temperature of at least 130° C. in the oven chamber;
an electrically powered first heating device in the air feed conduit; and
a second heating device in the air feed conduit spaced apart from the first heating device;
wherein in use the first and second heating devices heat the air feed in series.
2. An oven according to claim 1 , wherein the first heating device and/or the second heating device can be connected to a vehicle motor and can be powered by the motor vehicle.
3. An oven according to claim 1 , wherein the first and second heating devices can be powered by power means present on a vehicle motor.
4. An oven according to claim 1 , wherein at least one of the first and second heating devices comprises a combustion device for generating hot combustion gases which can be used to heat the air feed.
5. An oven according to claim 4 , further comprising heat exchange means for passing the hot combustion gases in heat exchange relationship with the air feed.
6. An oven according to claim 1 , further comprising a control device arranged to permit regulation of said first and second heating devices to obtain a desired temperature within the oven chamber.
7. An oven according to claim 1 , further comprising adapter means arranged to permit at least a part of the heating arrangement to be selectively supplied with power from an external source when desired.
8. An oven according to claim 1 , wherein the arrangement is such that the oven chamber can be maintained at a temperature of at least 150° C.
9. An oven according to claim 1 , wherein the volume of the oven chamber is not more than 0.15 m 3 .
10. An oven according to claim 1 , wherein the heating arrangement can generate a temperature of at least 130° C. when the oven contains 10 kg of food in individual portions of about 400 g.
11. A vehicle comprising a convection oven for use in the vehicle, the oven comprising:
an oven chamber with an air inlet and an air outlet,
an air feed conduit feeding an air feed into the oven chamber through the air inlet; and
a heating arrangement heating the air feed before it is fed into the oven chamber, the heating arrangement being arranged to maintain a temperature of at least 130° C. in the oven chamber;
an electrically powered first heating device in the air feed conduit; and
a second heating device in the air feed conduit spaced apart from the first heating device;
wherein the first and second heating devices heat the air feed in series.
12. A vehicle according to claim 11 , wherein the vehicle is powered by an internal combustion engine.
13. A vehicle according to claim 11 , comprising a combustible fuel.
14. A vehicle according to claim 12 , wherein the vehicle has an internal combustion engine and the oven is heatable in part from an electrical current derived from said engine.
15. A vehicle according to claim 11 , comprising two ovens.
16. A vehicle according to claim 15 , wherein each oven comprises a respective heating and control arrangement.
17. A vehicle according to claim 15 , wherein the ovens are heated by a common heating arrangement.