Hydraulic brake system
First Claim
1. A hydraulic brake system comprising:
- a damping device configured to attenuate pressure pulsation of brake oil discharged according to a driving of a pump,wherein the damping device includes;
a sleeve fixed to a bore that is connected to a discharge end of the pump and having an opened side;
a damping piston slidably installed inside the sleeve; and
an elastic member provided inside the sleeve and configured to elastically support the damping piston,wherein a slot having a width which is varied is formed at an inner circumferential surface of the sleeve in a direction in which the brake oil flows so that a variable orifice is formed between the damping piston and the sleeve,wherein the hydraulic brake system further comprises a first stopper coupled to the opened side of the sleeve, configured to support the elastic member, and configured to limit a movement distance of the damping piston,wherein a first coupling depression is formed at an outer circumferential surface of the sleeve, andwherein the first stopper includes;
a first body configured to expose a portion of an opened aperture of the sleeve; and
a plurality of first rods bended and extending from the first body to be coupled to the first coupling depression.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed herein is a hydraulic brake system. The hydraulic brake system comprises a damping device configured to attenuate pressure pulsation of brake oil discharged according to a driving of a pump, wherein the damping device includes a sleeve fixed to a bore that is connected to a discharge end of the pump and having an opened one side, a damping piston slidably installed inside the sleeve, and an elastic member provided inside the sleeve and configured to elastically support the damping piston, and wherein a slot having a width which is varied is formed at an inner circumferential surface of the sleeve in a direction in which the brake oil flows so that a variable orifice is formed between the damping piston and the sleeve.
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Citations
13 Claims
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1. A hydraulic brake system comprising:
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a damping device configured to attenuate pressure pulsation of brake oil discharged according to a driving of a pump, wherein the damping device includes; a sleeve fixed to a bore that is connected to a discharge end of the pump and having an opened side; a damping piston slidably installed inside the sleeve; and an elastic member provided inside the sleeve and configured to elastically support the damping piston, wherein a slot having a width which is varied is formed at an inner circumferential surface of the sleeve in a direction in which the brake oil flows so that a variable orifice is formed between the damping piston and the sleeve, wherein the hydraulic brake system further comprises a first stopper coupled to the opened side of the sleeve, configured to support the elastic member, and configured to limit a movement distance of the damping piston, wherein a first coupling depression is formed at an outer circumferential surface of the sleeve, and wherein the first stopper includes; a first body configured to expose a portion of an opened aperture of the sleeve; and a plurality of first rods bended and extending from the first body to be coupled to the first coupling depression. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A hydraulic brake system comprising:
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a first hydraulic circuit configured to connect a first port of a master cylinder to a first wheel cylinder to control delivery of hydraulic pressure; a second hydraulic circuit configured to connect a second port of the master cylinder to a second wheel cylinder to control delivery of hydraulic pressure; a pump configured to suction brake oil from the master cylinder and pump the suctioned brake oil; a main flow path configured to connect a discharge outlet of the pump to the master cylinder; an auxiliary flow path configured to guide the brake oil to an inlet of the pump to enable the brake oil to be suctioned; and a damping device installed at the main flow path and configured to attenuate pressure pulsation of the brake oil discharged according to a driving of the pump, wherein the damping device includes; a sleeve fixed to a bore that is connected to a discharge end of the pump and having an opened side; a damping piston slidably installed inside the sleeve; and an elastic member provided inside the sleeve and configured to elastically support the damping piston, wherein a slot having a width that is varied in a direction in which the brake oil flows is formed at an inner circumferential surface of the sleeve to form a variable orifice between the damping piston and the sleeve, wherein the hydraulic brake system further comprises a stopper coupled to the opened side of the sleeve, configured to support the elastic member, and configured to limit a movement distance of the damping piston, wherein a coupling depression is formed at an outer circumferential surface of the sleeve, and wherein the stopper includes; a body configured to expose a portion of an opened aperture of the sleeve; and a plurality of rods bended and extending from the body to be coupled to the coupling depression.
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13. A hydraulic brake system comprising:
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a damping device configured to attenuate pressure pulsation of brake oil discharged according to a driving of a pump, wherein the damping device includes; a sleeve fixed to a bore that is connected to a discharge end of the pump and having an opened side; a damping piston slidably installed inside the sleeve; and an elastic member provided inside the sleeve and configured to elastically support the damping piston, and wherein a slot having a width which is varied is formed at an inner circumferential surface of the sleeve in a direction in which the brake oil flows so that a variable orifice is formed between the damping piston and the sleeve, wherein the damping piston, which has a cylindrical shape, includes a flange protruding at one side of the damping piston, and the elastic member is provided at an outward side of the damping piston so that one side of the elastic member is supported at the flange, wherein the hydraulic brake system further comprising a stopper coupled to the opened side of the sleeve to limit a movement distance of the damping piston, wherein one end of the elastic member is supported at the flange and another end of the elastic member is supported at the stopper, and wherein an end portion of the cylindrical shape of the damping piston is spaced apart from the stopper.
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Specification