초록 ▼

Disclosed is a high efficiency deep fat fryer from whose fry tank fat is continuously withdrawn for heating and filtration. A pump circulates part of this fat through a helical- or serpentine-shaped finned-tube heat exchanger positioned between a gas-fired burner and the bottom of the fry tank. The

Disclosed is a high efficiency deep fat fryer from whose fry tank fat is continuously withdrawn for heating and filtration. A pump circulates part of this fat through a helical- or serpentine-shaped finned-tube heat exchanger positioned between a gas-fired burner and the bottom of the fry tank. The remaining portion of fat is directed through a filter located in the bottom zone of the fry tank. The fryer includes a control system with sensors such as pressure switches for preventing damage to the fat at low flow rates and devices for expelling moisture trapped in the pump. The filter has an element of material such as carbon-impregnated cloth which may be quickly replaced without draining fat from the tank.

대표청구항 ▼

In a deep fat fryer including a tank for holding cooking fat and having means defining a fry zone and means defining a bottom zone below said fry zone, a filter for filtering the fat, a heat exchanger external to the tank, means for delivering heat to said heat exchanger, and means for circulating t

In a deep fat fryer including a tank for holding cooking fat and having means defining a fry zone and means defining a bottom zone below said fry zone, a filter for filtering the fat, a heat exchanger external to the tank, means for delivering heat to said heat exchanger, and means for circulating the fat through the heat exchanger and thereafter returning the fat to said tank, the improvement wherein said filter includes a means defining an inlet for receiving fat to be filtered a means defining an outlet for returning fat to said tank, and said means for circulating the fat comprises (a) pump means for removing fat from said tank and circulating fat for return to said tank, (b) a first return loop having an inlet end connected to said pump means and an outlet end connected to said tank, said heat exchanger being positioned in said first return loop between said inlet end and said outlet end and being operable to pass fat therethrough, and (c) a second return loop having an inlet end connected to said pump means and an outlet end connected to the inlet of said filter; said loops and said pump means operable to pass a first portion of the flow of fat from said pump means through said filter and to pass a second portion of the flow of fat from said pump means through the heat exchanger and then back to said tank.