초록 ▼

Heater coils usually intended primarily for the handling of low pressure heating fluid such as hot water from an engine cooling system are converted to use with elevated pressure hydraulic fluid by tying the inlet and outlet of said coil together with a sturdy structural frame, usually in the form o

Heater coils usually intended primarily for the handling of low pressure heating fluid such as hot water from an engine cooling system are converted to use with elevated pressure hydraulic fluid by tying the inlet and outlet of said coil together with a sturdy structural frame, usually in the form of a plate provided with threaded fittings on one side for connection to hydraulic lines and having the ends of the tubing secured by brazing or other hot metal fusion welding to the rear of the reinforcing plate in alignment with the orifices through the plate. The plate also serves as a safety shield in case of failure of the radiator coils or connections and can also be advantageously applied to radiator coils formed especially for hydraulic heating coils.

대표청구항 ▼

A method of providing a small single unit combined air conditioning and heating unit for use in operator\s cabs of heavy hydraulic equipment comprising: (a) providing a multi-coil air conditioning and heating unit casing having, within said casing, separate multi-coil cooling and heating coils for a

A method of providing a small single unit combined air conditioning and heating unit for use in operator\s cabs of heavy hydraulic equipment comprising: (a) providing a multi-coil air conditioning and heating unit casing having, within said casing, separate multi-coil cooling and heating coils for a cooling fluid and a heating fluid respectively arranged in line with each other and substantially adjacent to each other together with air moving means arranged for drawing environmental air sequentially past said cooling and heating coils, said heating coil being at least partially flexible in response to hydraulic pressure alterations within said coil, (b) fabricating a vibration damping, stiffening and strengthening frame means having a first side and a second side for unitizing the outlet and inlet of said heating coil inclusive of securely welding threaded fittings about two adjacent openings in a first side of a structural plate means having sufficient stiffness to retain said fittings completely immobile relative to each other, and a sufficient dimensions to transversely intersect both the inlet and outlet of the heating coil, (c) aligning the inlet and outlet of the heating coil with the two adjacent openings in the structural plate means and metallurgically fusing the inlet and outlet of said heating coil to a second side of the structural plate means about the openings in said structural plate means with an unobstructed passage from said outlet and inlet respectively on the second side of the structural plate means through the respective openings in said structural plate means and the fitting on the first side of the structural plate means with the threaded fittings extending outwardly from the heating coil a predetermined distance sufficient to extend beyond the edge of the casing when the coil is mounted in the casing, and (d) mounting said heating coil in the casing with the frame means adjacent one wall of the casing and the inlet and outlet of the heating coil securely attached via the threaded fittings to a system for providing heated hydraulic fluid to the inlet of the coil and for removing hydraulic fluid from the outlet of the coil.