A metal heat exchange tube assembly for a fryer cooking channel of a hot oil fryer for food-process lines has a plurality of elongate, rectangular, longitudinally-extending heat exchange tubes with open inflow and outflow ends; a laterally-extending abbreviated rectangular inflow-manifold tube with a plurality of apertures in a sidewall; and a laterally-extending abbreviated rectangular outflow-manifold tube with the same. The plurality of heat exchange tubes are joined to the inflow-manifold and outflow-manifold tubes with respective alignment among the open ends of the heat exchange tubes and the apertures in the sidewalls of the manifold tubes. The heat exchange tubes comprise a composite construction of an elongate, square-U shaped channel having a web bottom wall and flange sidewalls of a given uniform thickness, and an elongate closure strip welded along spaced seams to the exposed upper edges of the flanges of the channel, thereby forming a thermal oil conduit.

A multi-bank cooking system includes multiple discrete cooking systems sharing common plumbing and integrated safety features. The multi-bank cooking system may include two or more rack-fryer systems, each with discrete frypots, operating mechanisms and cooking controllers. Each of the discrete cooking systems, may share a common plumbing system with integrated valves and controls receiving coordinated safety signals to facilitate safe and efficient operation of the system.

A burner assembly system is disposed in a rear side, i.e. back side, of a deep fryer. The burner assembly system includes an aperture disposed in a side of a bottom portion at the rear of a fryer cabinet of the controlled deep fryer. A burner at the rear of the fryer cabinet is coupled to the aperture and is adapted to receive fuel that enters through the aperture. An ignition assembly is disposed within the burner and ignites the received fuel. A flue is disposed at the rear of and within the fryer cabinet and receives combustion gases and heat from the burner created by the ignition of fuel. A heat exchanger is disposed within the flue at the rear of the fryer cabinet and is heated by heat conveyed through the flue from the ignition of fuel in the burner.

An outdoor food frying apparatus includes a frame having a pot support, a burner element supported upon the frame, and a pot that removably fits the frame. The pot has end walls, a rear wall, a front edge portion, and a bottom wall. A basket is pivotally attached to the pot rear wall with one or more hinges. The basket is correspondingly sized and shaped to fit the pot interior. The basket is movable about the hinge between cooking and food discharge positions. The lid is pivotally attached to the pot. The lid is movable between a cooking position wherein the lid covers the pot upper opening and food discharge position wherein the lid rotates at least 180 degrees from said cooking position, forming a tray for receiving food discharged from the basket. A steamer plate can optionally be connected to the basket at the basket rim and/or basket side walls.

A fryer apparatus and method of frying food products includes a cooking chamber, a heater disposed external to the cooking chamber, a fuel system disposed external to the cooking chamber, a blower configured to propel an airflow toward a heater, and a fuel injector configured to inject fuel into the airflow to create an air-fuel mixture. The fuel system is configured to deliver an air-fuel mixture to the heater. The heater is configured to ignite the air-fuel mixture to provide an external heating source for the cooking medium within cooking chamber. The temperature of the cooking medium is controlled by varying the speed of the airflow.

The present invention relates to a water and oil type fryer minimizing the transfer of heat from a layer of oil for frying to a water layer, the water and oil type fryer comprising: an oil cask for frying having a connection pipe having a predetermined cross-sectional area ratio; a gas burner supplying heat to a heating flow path, or an electric heater directly supplying heat to oil for frying; a container for cleaning having a drain pipe, and simultaneously accommodating oil which is connected with oil in the oil cask through the connection pipe, and water which forms a boundary with the oil; and a sediment layer discharge pipe positioned below a boundary surface of oil and water.

A capacitive sensor and control system is configured to detect the presence (or absence) of fluid within a container. Configured in a vat or frypot of a deep fryer, the sensor determines when a level of liquid within the frypot is at or above the level of the sensor. The sensor is in communication with the control system and the sensor sends a signal to the control system representative of the presence or absence of liquid within the frypot and at the level of the sensor. The controller receives the signal from the sensor, and allows operation of the one or more heat sources for heating the frypot when the signal received from the sensor is representative of liquid being disposed within the frypot at or above the level of the sensor, and prevents operation of the one or more heat sources when the signal received from the sensor indicates that liquid is not disposed within the frypot at or above the level of the sensor.

An outdoor food frying apparatus includes a frame having a pot support, a burner element supported upon the frame, and a pot that removably fits the frame. The pot has end walls, a rear wall, a front edge portion, and a bottom wall that gradually increases in curvature from said rear wall to said front edge portion. A basket is pivotally attached to the pot rear wall with one or more hinges. The basket is correspondingly sized and shaped to fit the pot interior. The basket is movable about the hinge between cooking and food discharge positions. The lid is pivotally attached to the pot. The lid is movable between a cooking position wherein the lid covers the pot upper opening and food discharge position wherein the lid rotates at least 180 degrees from said cooking position, forming a tray for receiving food discharged from the basket.

A fryer includes a controller that can perform a first cooking mode and second cooking mode. In the first cooking mode, an object to be cooked is cooked by controlling the pulse combustor with a prescribed first heat quantity when the cooking oil contained in the oil bath is in a prescribed first oil amount, and the object to be cooked is in a prescribed first rated amount. In the second cooking mode, an object to be cooked is cooked by controlling the pulse combustor with a prescribed second heat quantity larger than the first heat quantity when the cooking oil is a prescribed second oil amount larger than the first oil amount, and the object to be cooked is in a prescribed second rated amount larger than the first rated amount.

A substantially closed loop filtration and convection system is configured to move fluid/oil volume within a fryer vat. The vat has a flow directed inlet, which directs flow of cooking fluid in a direction across the bottom of the vat directing the flow of oil and crumbs/debris across the vat, up and across a flow separation portion toward and into a cleaning zone portion of the vat. A crumb tray or crumb/debris catch system is disposed in the cleaning zone adjacent to the vat.