Continuously operating filtering apparatus

摘要

A deep fat fryer with continuous oil filtering and purging of sediments therefrom during uninterrupted fryer operation is provided. The filter includes a cylindrical hollow housing with a first end and a second end and a hollow cylindrical screen with a longitudinal axis and first and second ends. The screen is disposed coaxially within the hollow housing to define an annulus therebetween. A piston mounted within the screen and reciprocatingly movable along the longitudinal axis between the first and second ends of the screen. A pump, seal, and associate motor are provided to provide continuous oil flow through the filter and the remainder of the fryer. A heat exchanger is provided downstream of the pump to transfer heat from the fryer to the oil flowing through the heat exchanger.

主权项

1. A filter system for a cooking appliance, comprising:
a cylindrical primary housing and a cylindrical primary screen disposed concentrically therein; a flow path configured for a continuous flow of a liquid to be filtered from a cooking appliance to the cylindrical primary housing, wherein the path extends into an internal volume defined by the cylindrical primary screen, the primary screen is configured to allow liquid flow through the cylindrical primary screen into an annulus defined between the cylindrical primary housing and the cylindrical primary screen, but substantially retain any particulate matter initially entrained in the liquid within the internal volume; a pump comprising a suction fluidly connected to the annulus and a discharge fluidly connected to a return in the cooking appliance, wherein the cylindrical primary housing is directly fluidly connected to a debris extraction mechanism configured to continuously receive the particulate matter extracted from the cylindrical primary screen and automatically remove the particulate matter from the filter system, wherein the debris extraction mechanism comprises a second housing, a piston translatable therethrough, and a translatable end cup.