초록 ▼

An evaporator including a side plate formed with a number of openings each having rigidly secured therein the upper end portion of one of a number of U-shaped refrigerant tubes, a cover plate attached to the upper surface of the side plate and formed, by recessing its inner surface, with a plurality

An evaporator including a side plate formed with a number of openings each having rigidly secured therein the upper end portion of one of a number of U-shaped refrigerant tubes, a cover plate attached to the upper surface of the side plate and formed, by recessing its inner surface, with a plurality of bend sections each intercommunicating the upper end portions of the two tubes of the adjacent U-shaped refrigerant tubes forming a set, a distributor section for supplying a suitable refrigerant to refrigerant passages provided by the U-shaped tubes and the bend sections, a manifold section for collecting the refrigerant from the refrigerant passages and discharging same therefrom, and an expansion valve section extending between the distributor section and the manifold section in a manner to intercommunicate the two sections, and an expansion valve assembly mounted in the expansion valve section. In this evaporator, the refrigerant supplied through a high pressure refrigerant pipe connected to the cover plate passes through a valve section of the expansion valve assembly into the distributor section, from which the refrigerant flows through the tortuous refrigerant passages provided by the U-shaped tubes and the bend sections. The refrigerant changes into a gaseous state while flowing through the refrigerant passages, and the gaseous refrigerant is collected in the manifold section, from which it passes through a control section of the expansion valve assembly into a low pressure refrigerant pipe.

대표청구항 ▼

An evaporator comprising: a multitude of plate fins arranged to provide horizontally extending layers vertically spaced apart from one another a suitable distance; more than one set of refrigerant tube unit each providing a tortuous refrigerant passage extending through said plate fins; a pair of si

An evaporator comprising: a multitude of plate fins arranged to provide horizontally extending layers vertically spaced apart from one another a suitable distance; more than one set of refrigerant tube unit each providing a tortuous refrigerant passage extending through said plate fins; a pair of side plates fixedly supporting said plate fins and said refrigerant tube unit at opposite ends thereof; a cover plate attached to one of said side plates to provide a unitary structure; a distributor section formed between said side plate and said cover plate and connected to an inlet end portion of each said refrigerant tube unit; a manifold section formed between said side plate and said cover plate and connected to an outlet end portion of each said refrigerant tube unit; an expansion valve section formed between said side plate and said cover plate and connected to both said distributor section and said manifold section; an expansion valve assembly mounted in said expansion valve section in such a manner that a throttling section of the expansion valve assembly is located on the distributor section side of the expansion valve section and a control section thereof is located on the manifold section side of the expansion valve section; a high pressure refrigerant pipe connected to said cover plate for introducing a refrigerant to said distributor section through said throttling section; and a low pressure refrigerant pipe connected to said cover plate for discharging the refrigerant from said manifold section through said control section.