Piston for master cylinder
AssigneeErae Ams Co., Ltd.
InventorsBu-Geun Mun, Jong-Dae Weon, Yu-Jong Seo
Life of this patent
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Abstract
A master cylinder includes: a cylinder housing; a piston which is movably disposed in the cylinder housing so as to form a pressure chamber and a hydraulic fluid supplying chamber; a sealing member which is interposed between the cylinder housing and the piston. The piston has a plurality of communication holes for connecting the pressure chamber and the hydraulic fluid supplying chamber, and the plurality of communication holes are formed on a slanted surface which is provided to an outer surface of the piston.
Claims4
A master cylinder comprising:
- a cylinder housing having a hydraulic fluid supplying chamber;
- a piston movably disposed in the cylinder housing and having a pressure chamber;
- and
- a sealing member interposed between the cylinder housing and the piston,
- wherein the piston has a plurality of communication holes for connecting the pressure chamber and the hydraulic fluid supplying chamber,
- wherein the plurality of communication holes are disposed on a slanted portion of an outer surface of the piston,
- wherein the plurality of communication holes are located sequentially in a rearward direction from a first communication hole of the plurality of communication holes, which is front-most disposed, up to a second communication hole of the plurality of communication holes, which is rear-most disposed, and subsequently are located sequentially in a forward direction from the second communication hole up to the first communication hole, and
- wherein the plurality of the communication holes comprise a third communication hole having a center line perpendicular to a longitudinal direction of the piston and a fourth communication hole having a center line inclined with respect to the longitudinal direction of the piston such that a radial outer end thereof becomes closer to a rear side of the piston.
A master cylinder comprising:
- a cylinder housing having a hydraulic fluid supplying chamber;
- a piston movably disposed in the cylinder housing and having a pressure chamber;
- and
- a sealing member interposed between the cylinder housing and the piston,
- wherein the piston has a plurality of communication holes for connecting the pressure chamber and the hydraulic fluid supplying chamber,
- wherein the plurality of communication holes are disposed on a slanted portion of an outer surface of the piston,
- wherein the plurality of communication holes are located sequentially in a rearward direction so that a first communication hole of the plurality of communication holes, which is front-most disposed, and a second communication hole of the plurality of communication holes, which is rear-most disposed, are located adjacently and spaced from one another by a predetermined distance, and
- wherein the plurality of the communication holes comprise a third communication hole having a center line perpendicular to a longitudinal direction of the piston and a fourth communication hole having a center line inclined with respect to the longitudinal direction of the piston such that a radial outer end thereof becomes closer to a rear side of the piston.
A piston configured to be installed in a cylinder housing of a master cylinder, the piston comprising a plurality of communication holes respectively configured to communicate with an inner side and an outer side thereof,
- wherein the plurality of communication holes are disposed on a slanted portion of an outer surface of the piston,
- wherein the plurality of communication holes are located sequentially in a rearward direction from a first communication hole of the plurality of communication holes, which is front-most disposed, up to a second communication hole of the plurality of communication holes, which is rear-most disposed, and subsequently are located sequentially in a forward direction from the second communication hole up to the first communication hole, and
- wherein the plurality of the communication holes comprise a third communication hole having a center line perpendicular to a longitudinal direction of the piston and a fourth communication hole having a center line inclined with respect to the longitudinal direction of the piston such that a radial outer end thereof becomes closer to a rear side of the piston.
A piston configured to be installed in a cylinder housing of a master cylinder, the piston comprising a plurality of communication holes respectively configured to communicate with an inner side and an outer side thereof,
- wherein the plurality of communication holes are disposed on a slanted portion of an outer surface of the piston,
- wherein the plurality of communication holes are located sequentially in a rearward direction so that a first communication hole of the plurality of communication holes, which is front-most disposed, and a second communication hole of the plurality of communication holes, which is rear-most disposed, are located adjacently and spaced from one another by a predetermined distance, and
- wherein the plurality of the communication holes comprise a third communication hole having a center line perpendicular to a longitudinal direction of the piston and a fourth communication hole having a center line inclined with respect to the longitudinal direction of the piston such that a radial outer end thereof becomes closer to a rear side of the piston.
Dependencies are inferred from the claim text.