KR20120103863A - Check valve of hydraulic break system - Google Patents
Check valve of hydraulic break system Download PDFInfo
- Publication number
- KR20120103863A KR20120103863A KR1020110021771A KR20110021771A KR20120103863A KR 20120103863 A KR20120103863 A KR 20120103863A KR 1020110021771 A KR1020110021771 A KR 1020110021771A KR 20110021771 A KR20110021771 A KR 20110021771A KR 20120103863 A KR20120103863 A KR 20120103863A
- Authority
- KR
- South Korea
- Prior art keywords
- valve
- check valve
- valve housing
- brake system
- press
- Prior art date
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
- B60T13/142—Systems with master cylinder
- B60T13/145—Master cylinder integrated or hydraulically coupled with booster
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/745—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
- B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
- B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/81—Braking systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Check Valves (AREA)
- Regulating Braking Force (AREA)
Abstract
A check valve of a brake system is provided to simplify the structure and to facilitate manufacture and assembly. The check valve of the brake system according to the present invention is press-fitted to the stepped portion of the hydraulic block and the valve housing which forms an oil passage therein, a ball built into the valve housing to open and close the internal oil passage, and elastically supporting the ball. A check valve of a brake system comprising a spring and a valve seat for guiding the spring and coupled to the valve housing, wherein the valve housing has a small path therein and an oil passage having a valve face and a large path therein and circumferentially to the outside. The valve seat is provided with a protruding locking portion, and the valve seat has an oil hole provided at the center side, a first inner diameter portion that is bent from the oil hole and supports a spring therein, and an inner step of the locking portion with a diameter extending from the first inner diameter portion. It is provided to include a second inner diameter portion press-fitted to the side wall and a third inner diameter portion press-fitted to the bottom of the inner step Were the size and weight bar because they have a simple shape as a usual press-forming is possible to lower the manufacturing cost increased workability. In addition, the check valve of the brake system according to the present invention improves the assembly reliability of the check valve by supporting both the front end of the valve housing and the rear of the seat tail of the valve seat in the perforated block.
Description
The present invention relates to a check valve of a brake system, and more particularly, to provide a check valve of a brake system to simplify the structure to facilitate processing and assembly.
Vehicles are equipped with a brake system for braking. Recently, various kinds of systems have been proposed for obtaining a stronger and more stable braking force. An example of a brake system is an anti-lock brake system (ABS) that prevents wheel slippage during braking and a brake traction control system (BTCS) that prevents slippage of drive wheels during rapid start or acceleration of the vehicle. Traction Control System) and a vehicle dynamic control system (VDC) for stably maintaining driving conditions by controlling brake hydraulic pressure by combining anti-lock brake system and traction control.
The electronically controlled brake system includes a plurality of solenoid valves for controlling braking hydraulic pressure delivered to a hydraulic brake side mounted on a wheel of a vehicle, a pair of low pressure accumulators and high pressure accumulators for temporarily storing oil discharged from the hydraulic brakes, It includes a motor and pump for forcibly pumping oil in the low pressure accumulator, a plurality of check valves for preventing the reverse flow of oil, an ECU for controlling the solenoid valve and the driving of the motor, and these components are made of aluminum. It is compactly built into the manufactured hydraulic block.
1 is a cross-sectional view showing a check valve used in a conventional electronically controlled brake system. For example, the check valve installed in the flow path between the suction side of the pump and the low pressure accumulator blocks oil from the master cylinder side from being transferred to the low pressure accumulator side, and at the same time, the oil at the wheel cylinder side is pumped when the pump is driven by the motor. It serves to prevent the inflow to the suction side.
As shown in the drawing, the check valve 1 is a
By the way, the conventional check valve (1) described above was complicated in appearance and difficult to assemble because only the functionality was considered in manufacturing. In particular, in the case of the valve housing (2) has a disadvantage that the manufacturing cost is expensive because the shape is complicated, as the product size is large and can be produced only by cutting, spring seat (6) is only in the valve housing (3) Since it is press-fitted, there is a problem in that assembly reliability is lowered when used for a long time.
SUMMARY OF THE INVENTION The present invention has been made in view of the above prior art, and an object of the present invention is to provide a check valve of a brake system for simplifying the structure to facilitate manufacturing and assembly.
The check valve of the brake system according to the present invention for achieving the above object is press-fitted to the stepped portion of the hydraulic block and the valve housing to form an oil passage therein, a ball built into the valve housing to open and close the inner oil passage; A check valve of a brake system comprising a spring for elastically supporting a ball and a valve seat for guiding the spring and coupled to the valve housing, wherein the valve housing has a small path and a valve surface, and an oil consisting of a medium path and a large path. It is provided with a passage and protruding in the circumferential direction on the outside is provided with a locking portion that is press-fitted to the inner step of the hole block, the valve seat is provided in a plate shape having an oil hole in the center side is press-fitted to the large path.
In addition, the large path of the valve housing of the check valve of the brake system according to the present invention is further provided with a stepped outward step, the stepped to cock the valve seat coupled to the large path.
In addition, the hole block of the check valve of the brake system according to the present invention further comprises an outer step portion, the outer step portion is fixed by pressing the outer edge of the locking portion of the valve housing pressed into the inner step portion.
The check valve of the brake system according to the present invention has a valve housing having an oil passage consisting of a small path and a valve surface and a medium path and a large path therein and protruding in the circumferential direction to be press-fitted into the inner step of the hole block. The valve seat has a locking part, and the valve seat is formed in a plate shape having an oil hole at the center thereof to be press-fitted to a large path, thereby simplifying the shape, thereby reducing the size and weight, and making a normal press work, thereby reducing manufacturing costs. Lowered and increased processability.
In addition, the check valve of the brake system according to the present invention improves the assembly reliability of the check valve by supporting both the front end of the valve housing and the rear of the seat tail of the valve seat in the perforated block.
1 is a view illustrating a check valve of a conventional brake system.
2 is a diagram illustrating a brake system in which a check valve according to an embodiment of the present invention is used.
3 is a view illustrating a check valve of a brake system according to an embodiment of the present invention.
4 is a valve housing plan view of a check valve of a brake system according to an embodiment of the present invention.
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
First, prior to explaining the check valve of the brake system according to an embodiment of the present invention, a brief description will be given of the brake system in which the check valve of the present invention is used.
2 shows a conventional brake system. The electronically controlled brake system includes a
The first
A plurality of
The
In addition, a normal open solenoid valve 47 (hereinafter referred to as TC valve) for traction control control (TCS) is installed in the
In addition, the
In addition, the
The braking action of the hydraulic brake system for a vehicle according to the present invention configured as described above is as follows.
First, the driver depresses the
3 and 4 illustrate a check valve of a brake system according to an embodiment of the present invention. Although the
As shown in the drawing, the
First, the
The
The
As described above, the
Therefore, the
2..
2c..
110.
112c..Middle and
112e .. Step 112f .. Caulking part
114..Hanging 120..Ball
125.
130a..Oil ball
Claims (3)
The valve housing 110 has an oil passage 112 consisting of a small path 112a, a valve face 112b, a medium path 112c, and a large path 112d therein, and protrudes in the circumferential direction. It has a locking portion 114 is press-fitted to the inner stepped portion 2b of the hole block 2,
The valve seat 130 is provided in a plate shape having an oil hole (130a) in the center side, check valve of the brake system is press-fitted to the large path (112d).
The large path 112d of the valve housing 110 further includes a step 112e outward, and the step 112e checks a brake system for cocking the valve seat 130 coupled to the large path 112d. valve.
The hole block 2 further includes an outer stepped portion 2c, and the outer stepped portion 2c pressurizes an outer edge of the engaging portion 114 of the valve housing 110 press-fitted into the inner stepped portion 2b. The check valve of the brake system to deform and fix.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110021771A KR20120103863A (en) | 2011-03-11 | 2011-03-11 | Check valve of hydraulic break system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110021771A KR20120103863A (en) | 2011-03-11 | 2011-03-11 | Check valve of hydraulic break system |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20120103863A true KR20120103863A (en) | 2012-09-20 |
Family
ID=47111652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020110021771A KR20120103863A (en) | 2011-03-11 | 2011-03-11 | Check valve of hydraulic break system |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20120103863A (en) |
-
2011
- 2011-03-11 KR KR1020110021771A patent/KR20120103863A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |