Portable preheating system for internal combustion engines

A portable preheating apparatus for internal combustion engines comprising:

• (a) a portable cabinet-like housing internally compartmentallized by a plurality of horizontally disposed parallel shelves,
• (b) a liquid reservoir in one of said compartments,
• (c) a heating chamber housing heating coils for heating liquid in said reservoir as well as liquid in the engine to be preheated, in another of said compartments,
• (d) a pump common to said reservoir and said heating coils in yet another of said compartments,
• (e) said pump having an inlet and an outlet each in communication with said liquid reservoir and said heating coils as well as the engine to be preheated,
• (f) a series of pipe conduits within said housing connecting said inlet and said outlet of said pump to said heating coils, said liquid reservoir, and the engine to be preheated,
• (g) a series of valves interposed in said pipe conduits connecting said inlet and said outlet of said pump to said heating coils completing a course for recycling of the fluid by said reservoir between said liquid reservoir and said heating coils,
• (h) a second series of valves interposed in said pipe conduits connecting said inlet and said outlet of said pump to said heating coils and said liquid reservoir and the engine to be heated completing a course of circulation of the liquid by said pump between said heating coils and said reservoir and the engine to be heated, and
• (i) a third series of valves interposed in said pipe conduits connecting said inlet and said outlet of said pump to said heating coils and the engine to be heated completing a course of recycling of the liquid by said pump between said heating coils and the engine to be heated.