KR20120103865A - Check valve of hydraulic break system - Google Patents
Check valve of hydraulic break system Download PDFInfo
- Publication number
- KR20120103865A KR20120103865A KR1020110021773A KR20110021773A KR20120103865A KR 20120103865 A KR20120103865 A KR 20120103865A KR 1020110021773 A KR1020110021773 A KR 1020110021773A KR 20110021773 A KR20110021773 A KR 20110021773A KR 20120103865 A KR20120103865 A KR 20120103865A
- Authority
- KR
- South Korea
- Prior art keywords
- valve
- valve housing
- check valve
- ball
- brake system
- Prior art date
Links
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
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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
- 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
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- 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
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 is smaller in diameter than the suspension and is tapered at the tip and extends from the tip. The valve seat includes a suspension having a cylindrical shape and having a predetermined length so that a ball and a spring can be embedded therein, a rear end extending in diameter while stepped out of the suspension, and a flange bent so as to extend in a circumferential direction from the rear end. It has an outer diameter that matches the inner diameter of the rear end of the valve housing to press-fit the rear end of the valve housing. It has an oil hole penetrating the inside.
In addition, the perforated block of the check valve of the brake system according to the present invention further comprises an outer step, the outer step is fixed by pressing and deforming the flange of the valve housing pressed into the inner step.
Further, in the check valve of the check valve of the brake system according to the present invention, both the flange front of the valve housing and the rear of the valve seat are supported by the perforated block.
The check valve of the brake system according to the present invention has a valve housing having a diameter smaller than that of the suspension and having a tapered tip, a suspension extending from the tip, having a cylindrical shape, and having a predetermined length so that a ball and a spring may be embedded therein, A rear end of which the diameter is extended from the rear end, and a flange that is bent to extend the diameter in the circumferential direction from the rear end, and the valve seat has an outer diameter that matches the inner diameter of the rear end of the valve housing so as to be press-fitted to the rear end of the valve housing. Since the shape is simplified to have an oil hole penetrating through, the size and weight are reduced, and a general press working is possible, thereby lowering the manufacturing cost and increasing workability.
In addition, in the check valve of the brake system according to the present invention, both the front of the flange of the valve housing and the rear of the valve seat are supported by the perforated block, so that the check valve can be easily fixed and assembled, thereby increasing assembly reliability.
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.
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 is a view illustrating 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
The
After the
Therefore, the
2..
2c..
120.
130..valve seat 130a.oil hole
Claims (3)
The valve housing 110 has a diameter smaller than that of the stop 110b and has a tapered tip 110a and a cylindrical shape extending from the tip 110a and having a ball 120 and a spring 125 therein. A stop 110b having a predetermined length, a rear end 110c extending in diameter while stepped from the stop 110b, and a flange 110d bent to extend in a circumferential direction from the rear end 110c,
The valve seat 130 is a check valve of a brake system having an outer diameter that matches the inner diameter of the rear end (110c) to be press-installed in the rear end (110c) of the valve housing 110 and has an oil hole penetrating the inside.
The hole block 2 further includes an outer stepped portion 2c, and the outer stepped portion 2c fixes and fixes the flange 110d of the valve housing 110 press-fitted into the stepped portion 2b. Check valve of the brake system.
The check valve is a check valve of a brake system in which both the front of the flange (110d) of the valve housing (110) and the rear of the valve seat (130) are supported by the hole block (2).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110021773A KR20120103865A (en) | 2011-03-11 | 2011-03-11 | Check valve of hydraulic break system |
DE201210005392 DE102012005392B4 (en) | 2011-03-11 | 2012-03-09 | Shut-off valve for hydraulic brake system |
US13/416,634 US8684029B2 (en) | 2011-03-11 | 2012-03-09 | Check valve of hydraulic brake system |
CN2012100639232A CN102700540A (en) | 2011-03-11 | 2012-03-12 | Check valve of hydraulic brake system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110021773A KR20120103865A (en) | 2011-03-11 | 2011-03-11 | Check valve of hydraulic break system |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20120103865A true KR20120103865A (en) | 2012-09-20 |
Family
ID=47111654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020110021773A KR20120103865A (en) | 2011-03-11 | 2011-03-11 | Check valve of hydraulic break system |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20120103865A (en) |
-
2011
- 2011-03-11 KR KR1020110021773A patent/KR20120103865A/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 |