Vacuum pump
AssigneeVmeca Co., Ltd.
InventorHo-Young Cho
Life of this patent
Estimating the term…
Abstract
The present invention relates to a vacuum pump and, more specifically, to a vacuum pump that is designed to change the direction of an intake port formed on a side wall of a housing, according to necessity. The vacuum pump includes: a housing; an ejector part embedded in the housing; and a pressing means provided on the outside of the housing. Particularly, the housing includes two or more parts, including a main part that has the intake port, which are disposed in a line, wherein a stopping member is formed along a contact surface there between. This structure enables the main part to rotate, and thus the direction of the intake port can be changed.
Claims20
A vacuum pump comprising:
- a housing provided with a compressed air inlet port, an exhaust port, and an intake port at a first end, at a second end, and on a side wall of the housing, respectively, with a vacuum chamber being formed in the housing and communicating with the intake port, the housing being configured such that at least two parts, including a main part provided with the intake port, and at least one adjacent part, are linearly arranged, wherein between the main part and the at least one adjacent part, a plurality of stopping members is provided along contact surfaces, whereby the main part is rotated relative to the at least one adjacent part, and accordingly a direction of the intake port is changed;
- an ejector part including a cylindrical ejector main body mounted inside the housing, the ejector main body including:
- an inlet provided at a first end thereof and communicating with the inlet port;
- an outlet provided at a second end thereof and communicating with the exhaust port;
- and a through-hole provided on a side wall thereof and communicating with the intake port via the vacuum chamber;
- and
- means for providing adhesion between the main part and the at least one adjacent part,
- wherein the ejector part further includes a first support body and a second support body that are respectively mounted to opposite ends of the ejector main body and are configured such that external circumferences thereof come into contact with an internal circumference of the housing, wherein the first and second support bodies are designed not to interfere with communication between each of the ports and the ejector main body.
A vacuum pump comprising:
- a housing provided with a compressed air inlet port, an exhaust port, and an intake port at a first end, at a second end, and on a side wall of the housing, respectively, with a vacuum chamber being formed in the housing and communicating with the intake port, the housing being configured such that at least two parts, including a main part provided with the intake port, and at least one adjacent part, are linearly arranged, wherein between the main part and the at least one adjacent part, a plurality of stopping members is provided along contact surfaces, whereby the main part is rotated relative to the at least one adjacent part, and accordingly a direction of the intake port is changed;
- an ejector part including a cylindrical ejector main body mounted inside the housing, the ejector main body including:
- an inlet provided at a first end thereof and communicating with the inlet port;
- an outlet provided at a second end thereof and communicating with the exhaust port;
- and a through-hole provided on a side wall thereof and communicating with the intake port via the vacuum chamber;
- means for providing adhesion between the main part and the at least one adjacent part;
- and
- pressing means, as the means for providing adhesion, provided at least one of opposite sides of the housing so as to provide adhesion between the parts,
- wherein the pressing means is a snap ring fitted over an external circumference of an outer protruding portion of the ejector part, the outer protruding portion protruding to an end of the housing.
Dependencies are inferred from the claim text.