A pump including a main body having a piston provided in a portion of the main body, the piston being configured to reciprocate linearly. A piston spring may be provided within the main body and configured to bias the piston toward an end of the main body. Further, a plurality of intake check valve
A pump including a main body having a piston provided in a portion of the main body, the piston being configured to reciprocate linearly. A piston spring may be provided within the main body and configured to bias the piston toward an end of the main body. Further, a plurality of intake check valves may be positioned radially within the main body and configured to move in a direction generally perpendicular to the linearly reciprocating direction of the piston such that brake fluid is introduced into the main body. Additionally, the pump may include an exhaust check valve configured to exhaust brake fluid from an inside of the main body to an exterior of the main body by moving an exhaust check ball in the linearly reciprocating direction of the piston.
대표청구항▼
What is claimed is: 1. A pump for an antilock-braking system, said pump comprising: a main body; a piston provided within a portion of said main body, wherein the piston is configured to reciprocate linearly; a piston spring provided within said main body, wherein the piston spring is configured to
What is claimed is: 1. A pump for an antilock-braking system, said pump comprising: a main body; a piston provided within a portion of said main body, wherein the piston is configured to reciprocate linearly; a piston spring provided within said main body, wherein the piston spring is configured to bias said piston toward an end of said main body; a plurality of intake check valves positioned radially within said main body and configured to move in a direction generally perpendicular to a linearly reciprocating direction of said piston such that brake fluid is introduced into said main body, the plurality of intake check valves comprising: a fluid intake passage provided in said main body and extending in a direction generally perpendicular to the linearly reciprocating direction of said piston, intake check balls positioned at opposing sides of said fluid intake passage with respect to a central axis of said piston, and an intake spring positioned between said opposing check balls, wherein the intake spring is configured to apply a resilient force to said opposing intake check balls; and an exhaust check valve configured to exhaust brake fluid from an inside of said main body to an exterior of said main body by moving an exhaust check ball in the linearly reciprocating direction of the piston. 2. The pump according to claim 1, wherein said intake spring comprises a spring steel plate having a generally "C" shape. 3. The pump according to claim 1, wherein said intake spring comprises a coil spring. 4. The pump according to claim 1, further comprising an insert provided within said main body, wherein said insert is positioned between said piston spring and said exhaust check valve, wherein said insert is provided with said intake spring and comprises portions of said fluid intake passage, and wherein said insert further comprises a fluid exhaust passage that connects a pumping space defined by said piston, said piston spring, and said main body to said exhaust check valve. 5. The pump according to claim 4, wherein said exhaust check valve includes: an exhaust check ball aligned with the central axis of said piston and contacting said insert; and an exhaust spring configured to bias said exhaust check ball towards said insert. 6. The pump according to claim 1, wherein said piston is integrally provided with a stopper having a generally circular shape, wherein the stopper protrudes outwardly at a periphery of said piston to restrict an insertion amount of said piston into said main body. 7. A pump for an antilock-braking system, said pump comprising: a main body; a piston provided within a portion of said main body, wherein the piston is configured to reciprocate linearly; a piston spring provided within said main body, wherein the piston spring is configured to bias said piston toward an end of said main body; a plurality of intake check valves configured to move in a direction generally perpendicular to a linearly reciprocating direction of said piston such that brake fluid is introduced into said main body, the intake check valves comprising: a fluid intake passage provided in said main body and extending in a direction generally perpendicular to the linearly reciprocating direction of said piston, intake check balls positioned at opposing sides of said fluid intake passage with respect to a central axis of said piston, and an intake spring positioned between said opposing check balls, wherein the intake spring is configured to apply a resilient force to said opposing intake check balls; and an exhaust check valve configured to exhaust brake fluid from an inside of said main body to an exterior of said main body by moving an exhaust check ball in the linearly reciprocating direction of the piston. 8. The pump according to claim 7, wherein said intake spring comprises a spring steel plate having a generally "C" shape. 9. The pump according to claim 7, wherein said intake spring comprises a coil spring. 10. The pump according to claim 7, further comprising an insert provided within said main body, wherein said insert is positioned between said piston spring and said exhaust check valve, wherein said insert is provided with said intake spring and comprises portions of said fluid intake passage, and wherein said insert further comprises a fluid exhaust passage that connects a pumping space defined by said piston, said piston spring, and said main body to said exhaust check valve. 11. The pump according to claim 10, wherein said exhaust check valve includes: an exhaust check ball aligned with the central axis of said piston and contacting said insert; and an exhaust spring configured to bias said exhaust check ball towards said insert. 12. The pump according to claim 7, wherein said piston is integrally provided with a stopper having a generally circular shape, wherein the stopper protrudes outwardly at a periphery of said piston to restrict an insertion amount of said piston into said main body.
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이 특허에 인용된 특허 (7)
Ahn, Dong-Ho, Anti-lock brake system pump housing.
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