Patent ID: 6120004
Filing Date: 2000-09-19
Classification: F16C,F16K,Y10S

Abstract:
A variable capillary apparatus, which comprises:a base plate;a first hollow cylindrical member assembled to an upper portion of the base plate;a first means assembled to an upper portion of the first hollow cylindrical member for guiding a fluid flow;a second means installed between the first hollow cylindrical member and the first means for controlling an amount of a fluid flowing into the first means by changing a shape thereof; anda third means for changing the shape of the second means;wherein the first means includes a second hollow cylindrical member having an outer diameter identical to an outer diameter of the first hollow cylindrical member, a lower portion of the second hollow cylindrical member being opened, the second hollow cylindrical member being formed at an upper portion thereof with a first opening for introducing the fluid therethrough, being formed at a circumferential portion of the first opening with an annular guide having an inner diameter substantially identical to a size of the first opening and extending downward so as to guide the fluid flowing there into through the first opening toward a lower portion of the second hollow cylindrical member, and being formed at a side thereof with a second opening for drawing the fluid out of the second hollow cylindrical member, the second means including a leaf spring having a circular shape, a size of which being substantially identical to the outer diameters of the first and second hollow cylindrical members, the leaf spring being assembled between the first and second hollow cylindrical members and being upwardly bent by a force applied to an underside thereof so that a gap of a capillary portion formed between an upper surface of the leaf spring and a lower edge of the annular guide is changed, thereby controlling the amount of the fluid flowing into the second hollow cylindrical member.