KR20090009552A - The center valve of a master cylinder - Google Patents

The center valve of a master cylinder Download PDF

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Publication number
KR20090009552A
KR20090009552A KR1020070072939A KR20070072939A KR20090009552A KR 20090009552 A KR20090009552 A KR 20090009552A KR 1020070072939 A KR1020070072939 A KR 1020070072939A KR 20070072939 A KR20070072939 A KR 20070072939A KR 20090009552 A KR20090009552 A KR 20090009552A
Authority
KR
South Korea
Prior art keywords
valve
master cylinder
center
valve rod
center valve
Prior art date
Application number
KR1020070072939A
Other languages
Korean (ko)
Inventor
김상윤
Original Assignee
현대모비스 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020070072939A priority Critical patent/KR20090009552A/en
Publication of KR20090009552A publication Critical patent/KR20090009552A/en

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Classifications

    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/232—Recuperation 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
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

A center valve of the master cylinder is provided to use for ABS and ESP by forming a groove so that the valve spring safely set on the valve rod, the flow channel is expanded for the valve rod and piston. A center valve of the master cylinder includes the valve rod(22) in which the valve spring closes and guides the center valve. As the valve rod, a groove(A) for safely setting so that the valve spring close the center valve is comprised. The groove prevents the vibration of the valve rod with the valve spring, and at least one valve is formed in the valve rod.

Description

The center valve of a master cylinder

The present invention relates to a center valve of a master cylinder, and more particularly, to a center valve of a master cylinder that is easy to secure the vibration and flow rate to the valve rod of the center valve.

In general, a master cylinder used in a vehicle or the like is a device that converts the pedaling force of a pedal operated by a driver into hydraulic pressure, and is connected to a clutch pedal to receive the pedaling pedal of the driver.

1 is a cross-sectional view showing a master cylinder of the conventional invention.

Referring to FIG. 1, in the master cylinder of the related art, a piston 2 is inserted into the master cylinder 1 having a cylindrical shape with both sides open so as to be movable back and forth so that one end portion of the valve spring 3 is fitted.

In addition, a retainer 4 is press-fitted into one opening of the master cylinder 1 to prevent the piston 3 from being separated, and is engaged with the valve spring 3 to prevent the valve spring 3 from being separated.

Thus, by pressurizing the oil while the piston 2 is moved inside the master cylinder 1, the pressurized oil is supplied through the outlet.

However, although the master cylinder of the present invention prevents the shaking of the retainer and the valve rod fixing the valve spring for closing the center valve, it is difficult to secure the flow rate according to the ABS and the ESC.

In addition, the master cylinder of the present invention has a high cross-sectional area in the process of passing through the center valve installed inside the cylinder, the flow path is difficult to secure and design requirements are expensive.

SUMMARY OF THE INVENTION An object of the present invention is to provide a center valve of a master cylinder which is easy to secure vibrations and flow rates for the valve rod of the center valve.

The center valve of the master cylinder of the present invention includes a valve rod, the valve spring of which closes and guides the center valve, the valve rod of which is the center of the master cylinder in which a groove is created which is seated so that the valve spring closes the center valve. valve.

In the center valve of the master cylinder of the present invention, by creating a groove to allow the valve spring to be seated on the valve rod, the retainer is fixed because the valve spring is fixed, and the flow path between the valve rod and the piston is expanded to be shared with ABS and ESP, It has the effect of reducing cost and processing time.

The center valve of the master cylinder according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view showing the center valve of the master cylinder according to the present invention.

Referring to FIG. 2, the master cylinder of the present invention is located inside the master cylinder 10 having a cylindrical shape with both sides open, and a center valve 20 and a center valve inserted into the piston 20 so as to be movable back and forth. A valve spring 30 for closing 20 is included.

Here, the center valve 20 is formed with a groove A on which at least one valve spring 30 can be seated on one surface of the valve rod 22.

 The groove A allows the valve spring 30 to be fixed to prevent the valve rod 22 from being separated and to enlarge the flow path.

That is, the valve spring 30 may be seated in the groove A of the piston 20 and the valve rod 22, and may prevent shaking when the valve rod 22 opens the flow path.

Therefore, when the valve rod 22 is moved forward, the space in which the valve spring 30 is seated is changed to the flow path space, and the oil moves through the valve spring 30.

Therefore, the valve rod 22 is prevented from shaking by the valve spring 30 seated in the groove A, and the required flow rate can be ensured by the ABS and the ESP.

Although a preferred embodiment of the present invention has been described in detail above, those skilled in the art to which the present invention pertains can make various changes without departing from the spirit and scope of the invention as defined in the appended claims. It will be appreciated that modifications or variations may be made to the branches. Accordingly, modifications to future embodiments of the present invention will not depart from the technology of the present invention.

1 is a cross-sectional view showing a master cylinder of the conventional invention.

2 is a cross-sectional view showing the center valve of the master cylinder according to the present invention.

<Explanation of symbols on main parts of the drawings>

10: master cylinder 20: center valve

22: valve rod 30: valve spring

A: home

Claims (3)

In the center valve of the master cylinder, the valve spring includes a valve rod for closing and guiding the center valve, The valve rod, A center valve of a master cylinder in which a recess is formed to allow the valve spring to close the center valve. The method of claim 1, wherein the groove, The center valve of the master cylinder to prevent the vibration of the valve rod by the valve spring. The method of claim 1, wherein the groove, At least one center valve of the master cylinder is formed in the valve rod.
KR1020070072939A 2007-07-20 2007-07-20 The center valve of a master cylinder KR20090009552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070072939A KR20090009552A (en) 2007-07-20 2007-07-20 The center valve of a master cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070072939A KR20090009552A (en) 2007-07-20 2007-07-20 The center valve of a master cylinder

Publications (1)

Publication Number Publication Date
KR20090009552A true KR20090009552A (en) 2009-01-23

Family

ID=40489279

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070072939A KR20090009552A (en) 2007-07-20 2007-07-20 The center valve of a master cylinder

Country Status (1)

Country Link
KR (1) KR20090009552A (en)

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