专利摘要:

公开号:SU715013A1
申请号:SU2347502
申请日:1976-04-23
公开日:1980-02-05
发明作者:Энтони Харрис Дэвид
申请人:Гирлинг Лимитед (Фирма);
IPC主号:
专利说明:

has a smaller diameter, and part 3 - a larger diameter. In part 3, an auxiliary chamber 4 is formed, and part 1 2 passes into a flash chamber 5.
The stepped piston 6 has part 7
a smaller diameter and a part, 8 larger diameter, installed in seals 9 and 10.. Part 8 of the piston 6 protrudes into the cavity 11 of the chamber 12, divided by the diaphragm 13 connected to the piston 6 through the plate 14 and the rod 15. The spring 16 holds the piston 6 in its extended position, in which it opens the spring-loaded ball locking valve in the open position ( valve element 18, adjustable between the inlet chamber 19 and chamber 5. Chamber 19 communicates with the main brake cylinder 20, and chamber 5 communicates with a hole 21 with the working, brake cylinder 22.
Valve assembly 23 for connecting the chambers 4 and 5 has an annular seal 24-, pressed by the spring 25 and the support ring 26 to the end 27 of por1-6 and to the end-28 of the collar.
The cavity 11 and the cavity 29 of the chamber 12 are connected via vacuum lines 30, and 31 and the valve 32 to a vacuum source (not shown).
The support ring 26 in FIG. 3 is equipped with a retaining ring 33, the working length of which is shorter than the chamber 5, as a result of which the seal 24 and the ring 33 are able to orpaiffl4eHHoro moving axially towards the spur 28.
In the variant shown in FIG. 4, the spring 34 is mounted by the rod 15 and the piston 6. In the housing there is a channel 35 dd for the working medium to be removed with the plugs in the compacted 9 and 10.
In the embodiment depicted in FIG. 5, the piston 6 is equipped with a face shaft 36,
interacting with the end 37 of the collar.
In addition, in the embodiments of Figures 1, 4, springs 38 with support rings 39, center of sealing 10, are required.
When piston 6 is extended. and the cylinder 20 does not work, part 7 of the piston 6 of the raft is adjacent to the seal 24 and squeezes it from the end 28, while the chambers 4 and 5 are connected to each other ..
When the cylinder 20 is turned on under normal braking conditions, the fluid passes through chamber 5 and opening 21, chamber 5 is in communication with chamber 4. When the pressure in cylinders 22 exceeds the force of the springs 16, the seal 24 contacts the shoulder 28 and isolates the chamber 5 from chamber 4 In this case, the fluid presses only on the end of the part 7 of the piston 6 and the pressure in the brakes can be
increased to a maximum value equal to the force of the spring 16 divided by the area of the end of part 7 of por1;
When the wheel is locked, the action of the spring 16 weakens and the piston 6 moves out of chamber 5 and moves away from valve member 18. Element 18 isolates chamber 19 from chamber 5, and the pressure in cylinder 22 decreases by increasing the volume of chamber 4. At the end of blocking the pressure in the cavity 11 falls, the spring 16 moves the piston into the chamber 5, the volume of the chamber 4 decreases and the pressure in the brakes increases, while the element 18 is closed. The maximum pressure in this case is equal to the force of the spring 16 divided by the cross-sectional area of the part of the piston 6 of larger diameter.
In the embodiment of FIG. 3, part 7 of the piston 6 is tapered and passes through the seal 24. In the brake off and until the brake pressure reaches the first value, UV1 24 does not come into contact with the end face 28, and part 7 is tightly closed. After closing element 18, part 7 leaves the seal 24 .
In the embodiment of FIG. 4, the spring 34 provides the greatest movement of the piston 6 with respect to the rod 15, which reduces the likelihood of the piston 6 adhering to the seals 9 and 10.
权利要求:
Claims (3)
[1]
1. The brake pressure regulator for the anti-lock braking system of the car, in the casing, the inlet chamber, which is connected to the brake master cylinder, and the exhaust chamber, connected to the working brake cylinder, are fitted with a spring-loaded ball locking element in the casing to separate these chambers and the piston in contact through the pusher with the mentioned locking element, which is distinguished by the fact of the Ch10, with the aim of increasing its efficiency, is equipped with an auxiliary chamber in the housing, separated From the outlet chamber an annular shoulder, the housing being equipped with a valve assembly for separating the outlet and auxiliary chambers controlled by a piston
[2]
2. The regulator according to claim 1, that the piston is stepped full, its part of a smaller diameter protrudes into the exhaust chamber, and the valve assembly is an annular seal sandwiched between the end of the specified pori ; n and spring-loaded support ring placed in the exhaust chamber.
57150136
[3]
3. The regulator according to claim 1, about tl and h a y sch and d-sources of information
with the fact that the valve assembly is made in the form of a v-expertise
a mechanical seal clamped between the ends of the piston and an annular collar in the auxiliary chamber.
1. US patent 14 3433535, cl. 303-21, 1969. Z912 f6
..2IfllLLf,
 l
类似技术:
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同族专利:
公开号 | 公开日
CS195727B2|1980-02-29|
HU174442B|1980-01-28|
JPS51130771A|1976-11-13|
DE2617726A1|1976-11-04|
GB1543323A|1979-04-04|
SU715013A3|1980-02-05|
US4066301A|1978-01-03|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题

US2847829A|1955-11-21|1958-08-19|Gladden Products Corp|Power braking system|
US3414336A|1967-05-09|1968-12-03|Trw Inc|Skid control system|
US3495882A|1968-01-31|1970-02-17|Kelsey Hayes Co|Skid control system including hydraulic modulating valve having a modified check and bleed valve|
US3671085A|1970-10-12|1972-06-20|Gen Motors Corp|Antilock brake modulator|
US3865440A|1972-07-28|1975-02-11|Itt|Hydraulic braking system with a plurality of booster control valves connected in series|JPS6159941B2|1979-09-26|1986-12-18|Aishin Seiki Kk|
DE3133283A1|1981-08-22|1983-03-03|FAG Kugelfischer Georg Schäfer & Co, 8720 Schweinfurt|Displacement piston unit for antilock hydraulic brake systems|
DE3233313A1|1982-09-08|1984-03-08|Robert Bosch Gmbh, 7000 Stuttgart|Antilock brake system|
DE3603074C2|1985-08-24|1988-07-07|Fag Kugelfischer Georg Schaefer Kgaa, 8720 Schweinfurt, De|
DE3530286C2|1985-08-24|1989-06-01|Fag Kugelfischer Georg Schaefer Kgaa, 8720 Schweinfurt, De|
DE3545236A1|1985-12-20|1987-06-25|Teves Gmbh Alfred|BLOCK-PROOF, HYDRAULIC VEHICLE BRAKE SYSTEM|
DE3602430A1|1986-01-28|1987-07-30|Teves Gmbh Alfred|BLOCK-PROTECTED HYDRAULIC BRAKE SYSTEM|
DE3603697C2|1986-02-06|1994-10-20|Teves Gmbh Alfred|Hydraulic brake system for motor vehicles|
IT1200054B|1986-09-26|1989-01-05|Fiat Auto Spa|DEVICE FOR THE SELECTIVE APPLICATION OF FLUIDIC DRIVE PRESSURE TO THE BRAKING PARTS OF A VEHICLE WITH ANTI-LOCK FUNCTION OF THE WHEELS|
DE3714999A1|1987-05-06|1988-11-17|Bosch Gmbh Robert|Pressure modulator for antilock brake systems|
GB2205369B|1987-06-05|1991-11-06|Teves Gmbh Alfred|Braking pressure modulator|
DE3718973A1|1987-06-05|1988-12-15|Teves Gmbh Alfred|Brake pressure modulator|
DE3718974A1|1987-06-05|1988-12-22|Teves Gmbh Alfred|BRAKE PRESSURE MODULATOR FOR A BRAKE-SLIP-CONTROLLED MOTOR VEHICLE BRAKE SYSTEM|
DE4028606A1|1990-09-08|1992-03-26|Teves Gmbh Alfred|PRESSURE CONTROL VALVE, ESPECIALLY FOR PRESSURE CONTROL IN SLIP-CONTROLLED, HYDRAULIC BRAKE SYSTEMS|
DE4415651C1|1994-05-04|1995-04-27|Daimler Benz Ag|Brake-pressure control device|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
GB1721175A|GB1543323A|1975-04-25|1975-04-25|Modulator assemblies for vehicle hydraulic braking systems|
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