CN106090069A - Low abrasion clutch master cylinder - Google Patents
Low abrasion clutch master cylinder Download PDFInfo
- Publication number
- CN106090069A CN106090069A CN201610643474.7A CN201610643474A CN106090069A CN 106090069 A CN106090069 A CN 106090069A CN 201610643474 A CN201610643474 A CN 201610643474A CN 106090069 A CN106090069 A CN 106090069A
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- China
- Prior art keywords
- piston
- oil
- cup
- spool
- cylinder body
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D48/04—Control by fluid pressure providing power assistance
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0209—Control by fluid pressure characterised by fluid valves having control pistons, e.g. spools
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0227—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices
- F16D2048/023—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices by pedal actuation
Abstract
The invention discloses a kind of low abrasion clutch master cylinder, including cylinder body, control valve assembly, piston, push rod fork, push rod and lubricating cup, spacing keyway it is provided with in the middle part of piston, described piston is provided with valve opening towards one end of control valve assembly, described valve opening connects with spacing keyway, and the two ends outer wall of piston is all arranged with the piston packing of annular；Cylinder interior is fixed with stop screw, and described stop screw is positioned at spacing keyway；Oil circuit one end is positioned at lubricating cup, and the other end is positioned at the surface of stop screw.Oil circuit is arranged at the inboard wall of cylinder block inner opening position of stop screw, it is to avoid the abrasion to piston two ends sealing ring of the oil circuit opening, reduces ring wear with this, improve sealing, extend the purpose in clutch master cylinder service life.
Description
Technical field
The present invention relates to clutch master cylinder, it is a kind of low abrasion clutch master cylinder.
Background technology
Clutch master cylinder is attached to clutch foot plate the part being connected by oil pipe with clutch booster.Effect
It is to gather pedal travel information to make clutch realize separating by the effect of booster.Master cylinder is an important portion of clutch
Part, the structural behaviour of master cylinder directly influences the work efficiency of brake.
Master cylinder in prior art, frequently includes push rod, cylinder body, control valve assembly, lubricating cup and piston, drives cylinder by push rod
Internal piston movement, reaches, with this, the control effect that control valve opens and closes, and the keying of control valve determines the clutch oil in lubricating cup
Can flow in loop.
But existing lubricating cup is connected with inboard wall of cylinder block by oil circuit, but the sealing ring on piston two ends is due in motion
During can again and again touch oil circuit opening on inboard wall of cylinder block, the most easily cause ring wear, cause under sealing effectiveness
Fall, the overall performance of clutch master cylinder together declines because the sealing property of piston packing reduces.
Summary of the invention
The goal of the invention of the present invention is the problem in order to solve piston packing abrasion, it is provided that a kind of low abrasion clutch is total
Pump, by changing oil circuit exit position, it is to avoid the opening of piston packing contact oil circuit, reduces ring wear, improves and seal
Effect and service life.
In order to realize foregoing invention purpose, present invention employs techniques below scheme: a kind of low abrasion clutch master cylinder, bag
Include cylinder body, control valve assembly, piston, push rod fork, push rod and lubricating cup, between cylinder body and lubricating cup, be provided with the oil passed through for clutch oil
Road, described cylinder body is the tubulose that one end is closed, and the surface of cylinder body is provided with oil-out, described oil-out connection inboard wall of cylinder block, controls
Valve module is inconsistent with push rod, and control valve assembly is positioned at cylinder body；
Piston, in shaft-like, middle part is provided with spacing keyway, and described piston is provided with valve opening towards one end of control valve assembly, institute
State valve opening to connect with spacing keyway, the two ends outer wall of piston is all arranged with the piston packing of annular；
Cylinder body, inside is fixed with stop screw, and described stop screw is positioned at spacing keyway；
Oil circuit one end is positioned at lubricating cup, and the other end is positioned at the surface of stop screw.
Preferably, described control valve assembly includes: spool, sealing cup, return unit and spring base；
Spool, rounded tubulose, be arranged in valve opening, spool one end close, spool be sequentially provided with from front to back fuel feed hole,
Oil outlet, the fixture installed for sealing cup and valve seat, fuel feed hole is positioned at valve opening, and oil outlet is positioned at spool and closes one end
Sidewall surfaces, oil outlet is arranged at the sidewall of spool, and oil outlet is towards the inwall of valve opening；
Spring base, in tubular and press on cylinder inner spring one end, spring base is attached at piston one end and together moves with piston
Dynamic, the sidewall of spring base or diapire are provided with the drain oil passed through for the clutch oil in oil outlet, described return unit, sealing cup
It is respectively positioned in spring base with valve seat；
Return unit, diapire in one end conflict spring base, other end conflict valve seat；
Sealing cup, is fixed on fixture, fixing leather cup by return unit elastic force tightly be posted by piston valve opening
The one end at place；
When control valve assembly is in open mode, and stop screw compresses the one end at spool fuel feed hole place, and return unit is pressed
Contracting, oil outlet is in outside valve opening；
When control valve assembly is closed, and stop screw at one end separates with spool fuel feed hole, return unit extrudes
The oil outlet of spool enters in valve opening, and the piston face at valve opening place is close to by sealing cup.
Preferably, the cup being arranged over fixing for lubricating cup of described cylinder body, described cup and the one-body molded setting of cylinder body,
Cup and inboard wall of cylinder block pass through oil communication.
Preferably, being provided with slope in described cup, the domatic of described slope is perpendicular to the axial of oil circuit, and oil circuit is positioned at slope
Domatic on.
Preferably, described piston relative with valve opening and outwardly one end be the cancave cambered surface of concave downward, described push rod and piston
The one end conflicted is provided with the cambered surface block of protrusion, and described cambered surface block coordinates with cancave cambered surface.
Preferably, the untight one end of described cylinder body is fixed with dust cover, is additionally provided with between described dust cover and cambered surface block
Elastic spring, described elastic spring is dish shaped in form, and push rod is arranged in the middle part of elastic spring, and it is embedding that described inboard wall of cylinder block is additionally provided with annular
Groove, is embedded with push rod packing ring in described annular caulking groove, and inside for elastic spring clamping, described push rod packing ring are situated between by described push rod packing ring
Between elastic spring and dust cover.
Preferably, described fixture is positioned at the sidewall of spool sidewall, and fixture is made up of ring-type bulge loop and ring-shaped insert groove, ring
Shape caulking groove is between ring-type bulge loop and valve seat, and described sealing cup is sheathed on ring-shaped insert groove and the surface of ring-type bulge loop.
Preferably, described return unit is that the small end of volute spring described in volute spring is towards valve seat.
Preferably, the sidewall of described spring base is provided with 4 drain oils facing each other, and diapire is provided with 1 drain oil.
Preferably, described oil-out is positioned at cylinder body and closes on bottom surface or the sidewall of one end.
Compared with prior art, have employed the low abrasion clutch master cylinder of technique scheme, have the advantages that
By changing oil circuit aperture position in inboard wall of cylinder block, it is to avoid the oil circuit opening mill to piston two ends sealing ring
Damage, reduce ring wear with this, improve sealing, extend the purpose in clutch master cylinder service life.
In the present invention, piston is shaft-like, and middle part is with spacing keyway, by coordinating of spacing keyway and stop screw, with
This controls piston in the displacement of cylinder interior.The most also determining stop screw position only only has spacing keyway permissible
Contact, the sealing ring at piston two ends is the inboard wall of cylinder block that cannot arrive stop screw place.
Therefore, in the present invention, by the opening of oil circuit being arranged at the inboard wall of cylinder block position of stop screw, reach sealing ring
The purpose of oil circuit opening cannot be contacted, reduce abrasion with this.
Accompanying drawing explanation
Fig. 1 is the half sectional view of low abrasion clutch master cylinder embodiment of the present invention；
Fig. 2 is the partial enlarged drawing (control valve assembly opening) in Fig. 1 at A；
Fig. 3 is the partial enlarged drawing (control valve assembly closed mode) in Fig. 1 at A；
Fig. 4 is the structural representation of low abrasion clutch master cylinder embodiment of the present invention；
Fig. 5 is the fractionation structural representation of low abrasion clutch master cylinder embodiment of the present invention；
Fig. 6 is the exploded perspective view of control valve assembly in the present invention；
Fig. 7 is the structural representation of piston in the present invention；
Fig. 8 is the structural representation of spool in the present invention；
Fig. 9 is the partial enlarged drawing in Fig. 1 at B.
Reference: 1, cylinder body；1a, oil circuit；1b, oil-out；1c, cup；10, piston packing；11, elastic spring；
12, push rod packing ring；13, dust cover；14, push rod；18, lubricating cup；2, cylinder inner spring；3, spring base；30, drain oil；4, return unit；
5, sealing cup；6, spool；61, oil outlet；62, ring-type bulge loop；63, valve seat；7, stop screw；8, screw sealing ring；9, live
Plug；90, spacing keyway；91, valve opening.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described further.
Low abrasion clutch master cylinder as shown in Figure 1 to 9, including cylinder body 1, push rod fork 16, push rod 14 and lubricating cup 18, cylinder body
Being provided with the oil circuit 1a passed through for clutch oil between 1 and lubricating cup, the tubulose that described cylinder body 1 is closed in one end, the surface of cylinder body 1 is provided with
Oil-out 1b, described oil-out 1b connect cylinder body 1 inwall, it is characterised in that: it is provided with control valve assembly in described cylinder body 1, controls
Valve module is inconsistent with push rod 14, is additionally provided with the cylinder inner spring 2 resetted for control valve assembly in cylinder body 1.
Cylinder body 1 be arranged over the cup 1c, cup 1c fixing for lubricating cup 18 and the one-body molded setting of cylinder body, cup 1c with
Inboard wall of cylinder block is connected by oil circuit 1a.Strengthening the fixing of lubricating cup 18 by cup 1c, one-body molded setting can be effectively improved oil
The fixing fastness of cup 18.
Being provided with domatic the axial of oil circuit 1a that be perpendicular to of slope 1c0, described slope 1c0 in cup 1c, oil circuit 1a is positioned at tiltedly
Slope 1c0 domatic on.After setting up slope, the structural strength of cup at oil circuit can be effectively improved, it is to avoid cup is adding in oil circuit
Produce opening part cracking during work or cup bursts apart phenomenon.
Oil-out 1b is positioned at cylinder body 1 and closes on the sidewall of one end, and oil-out 1b may be located on diapire, but opens on diapire
By influencing whether the fixing of cylinder inner spring 2 behind hole, therefore it is arranged at sidewall and can avoid the impact on cylinder inner spring 2；Next, if
It is placed in sidewall, oil circuit can be made to carry out 90 ° turns round, reduce the installation length of clutch master cylinder, if oil-out 1b is arranged
Oil circuit then can be made to prolong extending the most further of cylinder body 1 in diapire, have to stay in the axial direction when causing clutch master cylinder to install
Certain space.
Piston 9 relative with valve opening 91 and outwardly one end be the cancave cambered surface 92 of concave downward, push rod 14 and piston 9 conflict one
End is provided with the cambered surface block of protrusion, and cambered surface block coordinates with cancave cambered surface 92, and curved surface coordinates can increase contact area, reduces piston and pushes away
The abrasion of bar, and make the power on push rod to be applied to uniformly on piston.
The untight one end of cylinder body 1 is fixed with dust cover 13, is additionally provided with elastic spring 11 between dust cover 13 and cambered surface block,
Elastic spring 11 is dish shaped in form, and push rod is arranged in the middle part of elastic spring 11, and inboard wall of cylinder block is additionally provided with annular caulking groove 120, and annular is embedding
Being embedded with push rod packing ring 12 in groove 120, push rod packing ring 12 is by inside for elastic spring 11 clamping, and push rod packing ring 12 is between elastic spring
Between 11 and dust cover 13.
The Main Function of dust cover 13 is to prevent dust etc. from entering cylinder body 1, secondly coordinates elastic spring 11 will push away
Bar is ajusted, and makes the level that push rod 14 is in Fig. 9；The effect of push rod packing ring 12 is to be dust cover 13 and steel wire
Gap between back-up ring 11 is closed, it is to avoid clutch oil leakage goes out.
Control valve assembly: include stop screw 7, piston 9, spool 6, sealing cup 5, return unit 4 and spring base 3 successively.
Piston 9: as shown in Figure 6 and Figure 7, is provided with the spacing keyway 90 placed for stop screw 7, piston 9 court in the middle part of piston 9
Be provided with valve opening 91 to one end of spool 6, valve opening 91 connects with spacing keyway 90, and the two ends outer wall of piston 9 is all arranged with annular
Piston packing 10；The effect of piston packing 10 is to prevent the oil in lubricating cup from spilling from the sidewall of piston.
Spool 6: as shown in Fig. 2, Fig. 3 and Fig. 8, the rounded tubulose of spool, it is arranged in valve opening 91, spool one end is closed,
Spool is sequentially provided with fuel feed hole 60, oil outlet 61, the fixture installed for sealing cup 5 and valve seat 63, fuel feed hole from front to back
60 are positioned at valve opening 91, and oil outlet 61 is positioned at the sidewall of spool, and oil outlet 61 is arranged at the sidewall of spool, and oil outlet 61 towards
The inwall of valve opening 91；The length of spool 6 is more than the length of valve opening 91.The tabular that valve seat 63 is rounded, the external diameter of valve seat 63 is more than
The external diameter of sealing cup 5.
Fixture: be positioned at the sidewall of spool sidewall, fixture is made up of ring-type bulge loop 62 and ring-shaped insert groove, and ring-shaped insert groove is situated between
Between ring-type bulge loop 62 and valve seat 63, sealing cup 5 is sheathed on ring-shaped insert groove and the surface of ring-type bulge loop 62.Ring-type bulge loop 62
External diameter less than the external diameter of valve seat 63.
Spring base 3: spring base 3 is cup-shaped, rim of a cup with the crimping turned up, spring base be attached at piston 9 one end and with work
Plug 9 together moves, and the sidewall of spring base 3 or diapire are provided with the drain oil 30 passed through for the clutch oil in oil outlet 61, resets
Part 4, sealing cup 5 and valve seat 63 are respectively positioned in spring base；The sidewall of spring base 3 is provided with 4 drain oils 30 facing each other, the end
1 drain oil 30 it is equipped with on wall.
Return unit 4: diapire in one end conflict spring base 3, other end conflict valve seat 63；Return unit 4 is volute spring, taper
The small end of spring is towards valve seat 63.
Sealing cup 5: be fixed on fixture, fixing leather cup by return unit 4 elastic force tightly be posted by piston 9 valve
The one end at place, hole 91；The cross section that axle center crossed by sealing cup 5 is L-shaped.
When control valve assembly is in open mode, and stop screw 7 compresses the one end at spool 6 fuel feed hole 60 place, return unit 4
Being compressed, oil outlet 61 is in outside valve opening 91；
When control valve assembly is closed, stop screw 7 at one end separates with spool 6 fuel feed hole 60, return unit 4
The oil outlet 61 of extruding spool 6 enters in valve opening 91, and piston 9 surface at valve opening 91 place is close to by sealing cup 5.
When above-mentioned control valve assembly is applied to clutch master cylinder, it is arranged in the cylinder body 1 of clutch master cylinder, cylinder body 1
It is provided above cup 1c, cup 1c and is used for installing lubricating cup 18, in lubricating cup 18 and cup, be placed with clutch oil.
Being additionally provided with cylinder inner spring 2 in cylinder body 1, cylinder inner spring 2 is conflicted the outer rim crimping of spring base 3, the strength of cylinder inner spring 2
Degree coefficient is much larger than the stiffness factor of volute spring 4 (return unit), and briefly cylinder inner spring 2 is harder, is difficult to be compressed.
As depicted in figs. 1 and 2, when control valve assembly does not stresses, cylinder inner spring 2 extrusion spring seat 3, spring base to the right
3 abut piston 9, make the spacing keyway 90 on piston 9 conflict completely with stop screw 7, make stop screw 7 that spool 6 is produced one
Individual thrust to the left, and thrust is more than the elastic compression force of volute spring 4, spool 6 is released valve opening 91 a small distance, makes valve
Oil outlet 61 on core 6 is positioned at outside valve opening 91, cuts sealing cup 5 contactless with piston 9 surface at valve opening 91 place, makes lubricating cup 18
Interior clutch oil can flow in piston 9 smoothly in oil circuit 1a, and flows out in oil outlet 61 in the middle part of spool 6, enters
Enter in spring base 3, then the drain oil 30 passing through spring base 3 surface enters in cylinder body 1, and (as shown in dashed line in figure 2, i.e. clutch is oily
The path of flowing), finally the oil-out 1b from cylinder body 1 surface flows out, and forms the loop of a clutch oil flowing.
As shown in figures 1 and 3, when control valve assembly receives push rod fork 14 pressure to the left, and pressure is more than bullet in cylinder
The elastic force of spring 2, cylinder inner spring 2 is compressed, and control valve assembly is overall is advanced cylinder body 1 internal to the left by piston 9, loses stop screw
The conflict of 7, spool 6 is pressed in the valve opening 61 of piston 6 under the effect of volute spring 4, and makes the sealing cup on spool 6 surface
5 piston faces compressing valve opening 91 place tightly, make control valve module enclosure and closing, and clutch oil cannot pass through control valve group
Part.
Realize push rod fork by control valve assembly the indirect of oil circuit break-make in lubricating cup is controlled, be effectively improved clutch master cylinder
Sensitivity.
Meanwhile, the clutch master cylinder in the present embodiment also has the characteristic of piston packing 10 low abrasion:
Owing to piston 9 is shaft-like, middle part is with spacing keyway 90, by coordinating of spacing keyway 90 and stop screw 7, with
This controls piston 9 in the displacement within cylinder body 1.The most also determine stop screw 7 position and only only have spacing keyway
90 can contact, and the sealing ring 10 at piston two ends is cylinder body 1 inwall that cannot arrive stop screw 7 place.
Therefore, in the present invention, by the opening of oil circuit 1a being arranged at the inboard wall of cylinder block position of stop screw 7, reach close
Seal 10 cannot contact the purpose of oil circuit 1a opening, reduces abrasion with this.
By changing oil circuit aperture position in inboard wall of cylinder block, it is to avoid the oil circuit opening mill to piston two ends sealing ring
Damage, reduce ring wear with this, improve sealing, extend the purpose in clutch master cylinder service life.
The above makes the preferred embodiment of the present invention, for the person of ordinary skill of the art without departing from this
On the premise of bright principle, it is also possible to make some modification and improvement, these also should be regarded as protection scope of the present invention.
Claims (9)
1. a low abrasion clutch master cylinder, including cylinder body (1), control valve assembly, piston (9), push rod fork (16), push rod (14)
With lubricating cup (18), being provided with the oil circuit (1a) passed through for clutch oil between cylinder body (1) and lubricating cup (18), described cylinder body (1) is in one end
The tubulose closed, the surface of cylinder body (1) is provided with oil-out (1b), described oil-out (1b) connection cylinder body (1) inwall, control valve group
Part is inconsistent with push rod (14), and control valve assembly is positioned at cylinder body, it is characterised in that:
Piston (9), in shaft-like, middle part is provided with spacing keyway (90), and described piston (9) is provided with valve towards one end of control valve assembly
Hole (91), described valve opening (91) connects with spacing keyway (90), and the piston that the two ends outer wall of piston (9) is all arranged with annular is close
Seal (10)；
Cylinder body (1), inside is fixed with stop screw (7), and described stop screw (7) is positioned at spacing keyway (90)；
Oil circuit (1a) one end connects with lubricating cup (18), and the other end is towards the side surface of stop screw (7).
Described control valve assembly includes: spool (6), sealing cup (5), return unit (4) and spring base (3)；
-spool (6), rounded tubulose, in being arranged in valve opening (91), spool one end is closed, spool be sequentially provided with from front to back into
Oilhole (60), oil outlet (61), the fixture (62) installed for sealing cup (5) and valve seat (63), fuel feed hole (60) is positioned at valve
In hole (91), oil outlet (61) is positioned at spool and closes the sidewall surfaces of one end, and oil outlet (61) is arranged at the sidewall of spool, and goes out
Oilhole (61) is towards the inwall of valve opening (91)；
-spring base (3), in tubular and press on cylinder inner spring (2) one end, spring base is attached at piston (9) one end and piston
(9) together moving, the sidewall of spring base (3) or diapire are provided with the drain oil passed through for the clutch oil in oil outlet (61)
(30), described return unit (4), sealing cup (5) and valve seat (63) are respectively positioned in spring base；
-return unit (4), one end conflict spring base (3) interior diapire, other end conflict valve seat (63)；
-sealing cup (5), is fixed on fixture (62), fixing leather cup by return unit (4) elastic force tightly be posted by work
The one end at plug (9) valve opening (91) place；
When control valve assembly is in open mode, and stop screw (7) compresses the one end at spool (6) fuel feed hole (60) place, reset
Part (4) is compressed, and oil outlet (61) is in valve opening (91) outward；
When control valve assembly is closed, stop screw (7) at one end separates with spool (6) fuel feed hole (60), resets
The oil outlet (61) of part (4) extruding spool (6) enters in valve opening (91), and valve opening (91) place is close to by sealing cup (5)
Piston (9) surface.
Low abrasion clutch master cylinder the most according to claim 1, it is characterised in that: being arranged over for lubricating cup of described cylinder body
(18) fixing cup (1c), described cup (1c) and the one-body molded setting of cylinder body, cup (1c) and inboard wall of cylinder block pass through oil circuit
(1a) connection.
Low abrasion clutch master cylinder the most according to claim 2, it is characterised in that: it is provided with slope in described cup (1c)
(1c0), domatic the axial of oil circuit (1a) that be perpendicular to of described slope (1c0), oil circuit (1a) be positioned at slope (1c0) domatic on.
Low abrasion clutch master cylinder the most according to claim 1, it is characterised in that: described piston (9) and valve opening (91) phase
To and outwardly one end be the cancave cambered surface (92) of concave downward, one end that described push rod (14) and piston (9) are conflicted is provided with protrusion
Cambered surface block, described cambered surface block coordinates with cancave cambered surface (92).
Low abrasion clutch master cylinder the most according to claim 4, it is characterised in that: described cylinder body (1) untight one end
It is fixed with dust cover (13), between described dust cover (13) and cambered surface block, is additionally provided with elastic spring (11), described elastic spring
(11) dish shaped in form, push rod is arranged in the middle part of elastic spring (11), and described inboard wall of cylinder block is additionally provided with annular caulking groove (120), described
Being embedded with push rod packing ring (12) in annular caulking groove (120), described push rod packing ring (12) is by elastic spring (11) inwardly clamping, described
Push rod packing ring (12) is between elastic spring (11) and dust cover (13).
Low abrasion clutch master cylinder the most according to claim 1, it is characterised in that: described fixture (62) is positioned at spool side
The sidewall of wall, fixture (62) is made up of ring-type bulge loop and ring-shaped insert groove, ring-shaped insert groove between ring-type bulge loop and valve seat (63) it
Between, described sealing cup (5) is sheathed on ring-shaped insert groove and the surface of ring-type bulge loop.
Low abrasion clutch master cylinder the most according to claim 1, it is characterised in that: described return unit (4) is volute spring
The small end of described volute spring is towards valve seat (63).
Low abrasion clutch master cylinder the most according to claim 1, it is characterised in that: the sidewall of described spring base (3) is provided with 4
Individual drain oil facing each other (30), diapire is provided with 1 drain oil (30).
Low abrasion clutch master cylinder the most according to claim 1, it is characterised in that: described oil-out (1b) is positioned at cylinder body
(1) close on bottom surface or the sidewall of one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610643474.7A CN106090069A (en) | 2016-08-05 | 2016-08-05 | Low abrasion clutch master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610643474.7A CN106090069A (en) | 2016-08-05 | 2016-08-05 | Low abrasion clutch master cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN106090069A true CN106090069A (en) | 2016-11-09 |
Family
ID=57455432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610643474.7A Pending CN106090069A (en) | 2016-08-05 | 2016-08-05 | Low abrasion clutch master cylinder |
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| JP2001030890A (en) * | 1999-07-21 | 2001-02-06 | Bosch Braking Systems Co Ltd | Center valve type master cylinder for vehicle |
| WO2002096730A1 (en) * | 2001-05-30 | 2002-12-05 | Robert Bosch Gmbh | Improved device for detecting actuation of a braking system and use thereof |
| CN201086705Y (en) * | 2007-09-29 | 2008-07-16 | 傅强 | Master pump structure |
| CN201318405Y (en) * | 2008-11-25 | 2009-09-30 | 浙江吉利汽车有限公司 | Hydraulic pressure clutch total pump |
| CN201366946Y (en) * | 2009-02-26 | 2009-12-23 | 宁波神丰汽车部件有限公司 | Automobile-used clutch master cylinder |
| CN201521567U (en) * | 2009-10-14 | 2010-07-07 | 芜湖聚达汽车零部件有限公司 | Clutch main cylinder assembly |
| CN201973138U (en) * | 2011-01-26 | 2011-09-14 | 上海华普国润汽车有限公司 | Centre valve type clutch master cylinder |
| CN202220812U (en) * | 2011-09-05 | 2012-05-16 | 上海华普汽车有限公司 | Cone valve type clutch master cylinder |
| CN102506104A (en) * | 2011-10-27 | 2012-06-20 | 芜湖众发汽车制动系统有限公司 | Braking main cylinder provided with oil cup, fixing seat on cylinder body and center valve |
| CN102506103A (en) * | 2011-10-27 | 2012-06-20 | 芜湖众发汽车制动系统有限公司 | Braking main cylinder provided with oil cup assembly, operating rod assembly and center valve |
| CN202402514U (en) * | 2012-01-10 | 2012-08-29 | 瑞安市博欧汽配有限公司 | Master cylinder of clutch |
| CN202719043U (en) * | 2012-06-13 | 2013-02-06 | 浙江荣众机械有限公司 | Clutch master pump |
| CN205859003U (en) * | 2016-08-05 | 2017-01-04 | 林伟 | A kind of low abrasion clutch master cylinder |
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Application publication date: 20161109 |