CN101372224A - Electric-controlled load sensing emergency relay valve - Google Patents
Electric-controlled load sensing emergency relay valve Download PDFInfo
- Publication number
- CN101372224A CN101372224A CNA200710017038XA CN200710017038A CN101372224A CN 101372224 A CN101372224 A CN 101372224A CN A200710017038X A CNA200710017038X A CN A200710017038XA CN 200710017038 A CN200710017038 A CN 200710017038A CN 101372224 A CN101372224 A CN 101372224A
- Authority
- CN
- China
- Prior art keywords
- valve
- piston
- valve body
- spring
- emergency
- 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.)
- Granted
Links
Images
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention provides an electric-control load-sensing emergency relay valve which comprises a two-stage piston and an emergency piston assembly which are installed in a valve body from the top down, and is additionally provided with a pressure-regulating piston assembly, a pressure-regulating solenoid-operated valve, a booster piston, a balance piston assembly, a manual release valve and an emergency brake solenoid-operated valve, wherein, the pressure-regulating piston assembly and the booster piston are installed between an upper valve body and the two-stage piston in the valve body in sequence from the top down; the manual release valve comprises a handle, a shell communicated with an air inlet duct of a lower valve body, an eccentric shaft installed in the shell and a steering valve of a valve spring; and the emergency brake solenoid-operated valve is installed at one side of the lower valve body. Compared with the prior art, the electric-control load-sensing emergency relay valve, additionally provided with a trailer braking manual release valve and the balance piston assembly, can automatically regulate the air pressure for braking with the change of the shaft load and also has the function of brake releasing and the increased braking safety owing to the additional electric-control emergency braking function, so that the braking stability of a car can be kept under different loads and deceleration circumstances.
Description
Affiliated technical field
The invention provides a kind of electric-controlled load sensing emergency relay valve, belong to the automobile brake technical field.
Background technology
Along with China's express highway backbone network basically forms, large-tonnage, long wheelbase superimposed trailer, trailer with obvious ton-kilomiter cost advantage also increase year by year.Its wheelbase increases, and brake piping also extends accordingly, and to the long wheelbase vehicle of running at high speed, reflection time lag, the braking force deficiency of air braking system remain subject matter.Though but prior art is to have solved braking time lag, to have braked and feel like jelly, brake problems such as asynchronous.After but having ignored braking force and improving, the trailer locking that causes because of braking force is too high at unloaded glancing impact and fall tail show to, and increased the Tyte Wear amount of trailer.Also too early because of the trailer braking protection valve time, influenced car load in the adhesion condition between unloaded glancing impact tire and the ground and stability of under various deceleration situations, braking and service brake safety.And in all unresolved long wheelbase superimposed trailer of prior art, the trailer driving process when emergency braking the problem of braking time lag, cause trailer to clash into main car phenomenon and made the stopping distance lengthening, occurred traffic accident when especially bad weather, road conditions are not good easily.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can overcome above-mentioned defective, can be installed on superimposed trailer or the trailer and use, have the electric-controlled load sensing emergency relay valve of automatically regulating braking pressure and automatically controlled emergency braking function, excellent working performance.Its technology contents is:
Comprise the valve body that constitutes by upper valve body and following valve body, be installed in the two-diameter piston in the valve body from top to bottom successively, emergency piston assembly and the barometric control unit that is installed in valve body one side, wherein the sidewall of two-diameter piston forms vacuum chamber prevention E with the inner wall sealing of following valve body, the air flue UNICOM of vacuum chamber prevention E and barometric control unit, constitute outlet chamber B between the emergency piston in two-diameter piston and following valve body and the emergency piston assembly, emergency piston constitutes source of the gas chamber A with following valve body, it is characterized in that: set up the relief piston assembly, the pressure regulation solenoid electric valve, the boosting piston, the dummy piston assembly, manual relief valve and emergency braking solenoid electric valve, relief piston assembly wherein, the boosting piston is installed between the valve body interior upper valve body and two-diameter piston from top to bottom successively, and the sidewall of boosting piston and upper valve body sealing, on it, the lower surface respectively with upper valve body, the lower end of spring perch and two-diameter piston sealing constitute control chamber C and control chamber D, the inlet channel of pressure regulation solenoid electric valve and the control mouth UNICOM that is positioned at upper valve body, its gas off-take is by air flue and control chamber C UNICOM, the dummy piston assembly is installed in down the side of valve body away from barometric control unit, manually relief valve comprises handle, housing with the inlet channel UNICOM of following valve body, the eccentric shaft and two that is installed in the housing overlaps the guiding valve that all is set with valve spring, wherein be set with seal ring and housing seal on the eccentric shaft, and its head end level passes housing and captives joint with handle, its end is in shutoff is fixed on housing, be pressed with spring between shutoff and the eccentric shaft, the first cover guiding valve is fitted in the housing by adaptor union, the second cover guiding valve is fitted in the housing by shutoff, and housing is having through hole on the sidewall between the second cover guiding valve and the shutoff, and be provided with air extractor duct away from the other end of shutoff at the second cover guiding valve, corresponding with it, following valve body is provided with the air flue that runs through on the sidewall at the air passing hole place that is positioned at emergency piston, this air flue and through hole UNICOM, the emergency braking solenoid electric valve is installed in down a side of valve body, the source of the gas chamber F UNICOM of its inlet channel and emergency piston assembly, its gas off-take is by air flue and control chamber D UNICOM.
Described electric-controlled load sensing emergency relay valve, barometric control unit is installed in down in the valve body, comprise pressure regulating valve, balance spring, adjust seat, exhaust duct, tapered spring, gas off-take, liner plate, spring perch, adjust piston and dust boot, wherein spring socket sleeve is contained in a pressure regulating valve side outwardly, in spring perch and pressure regulating valve, be provided with the liner plate of band exhaust duct, the cooresponding valve body down of a pressure regulating valve side inwardly is provided with the gas off-take that is communicated with output cavity B and exhaust duct, tapered pressure mounting of the spring is pressed with successively between adjustment seat and spring perch and adjusts piston and balance spring between pressure regulating valve and following valve body.
Described electric-controlled load sensing emergency relay valve, the emergency braking solenoid electric valve is a normally closed two-position three way type solenoid electric valve, corresponding valve body down with it is provided with independently air flue and vertically air flue, the inlet channel of emergency braking solenoid electric valve is through the source of the gas chamber F of air flue UNICOM, and its gas off-take is communicated with the upper surface of two-diameter piston through air flue.
Described electric-controlled load sensing emergency relay valve, the sidewall of the big end driving surface of boosting piston and the sealing of the sidewall of upper valve body, its small end driving surface is by the sidewall formation pilot seal with upper valve body of twice horizontal seal circle longitudinally, small end driving surface sidewall is provided with air passage, the lower surface control chamber C of the upper surface of boosting piston and upper valve body, the upper surface of its lower surface and two-diameter piston constitutes control chamber D.
Described electric-controlled load sensing emergency relay valve, the dummy piston assembly comprises dummy piston, inlet channel, seal ring, balance spring, equilibrium bomb spring abutment, wherein dummy piston is by seal ring and following valve seal, balance spring is fitted between dummy piston and the equilibrium bomb spring abutment, inlet channel is communicated with output cavity B, and air flue is communicated with vacuum chamber prevention E.
Described electric-controlled load sensing emergency relay valve, the emergency piston assembly comprises Y type leather cup, emergency piston, valve, exhaust seat, valve spring and valve seat, the wherein upper end of emergency piston sidewall and following valve seal, the lower end of its sidewall is through exhaust seat and following valve seal, Y type leather cup is sleeved on the middle part of emergency piston, and with following valve seal, emergency piston and the cavity that following valve body constitutes are partitioned into source of the gas chamber A and source of the gas chamber F, wherein source of the gas chamber A is communicated with inlet channel, source of the gas chamber F is communicated with the 1-2 admission port that connects air receiver, be pressed with valve in the emergency piston from top to bottom successively, valve seat, and the valve seat sealing shroud is contained in the bottom of valve, on valve is positioned at sidewall on the valve seat, be provided with guide holder, between guide holder and valve seat, be pressed with valve spring.
Described electric-controlled load sensing emergency relay valve, the relief piston assembly comprises positioning seat, the pressure spring seat, relief piston, pressure spring, check valve, spring, spring perch and air flue, the inner wall sealing of the outer wall of relief piston and upper valve body wherein, the pressure spring seat is installed in the below of positioning seat, pressure spring is fitted between the upper surface of pressure spring seat and relief piston, check valve and spring perch be installed in successively relief piston below, pressure mounting of the spring is between the upper surface of the bottom of check valve and spring perch, the upper surface of the lower surface of spring perch and boosting piston and upper valve body constitute control chamber C, and air flue is communicated with the lower surface of control chamber C and relief piston.
Described electric-controlled load sensing emergency relay valve, level is provided with six air extractor ducts respectively in following valve body both sides, and three air extractor ducts of each side are the type of falling product and arrange.
Described electric-controlled load sensing emergency relay valve, the bottom of following valve body is provided with the noise reduction dust boot corresponding to the exhaust duct end of emergency piston assembly.
Its principle of work is: unloaded glancing impact, the pressure regulation solenoid electric valve is in the energising mode of operation, the control atmospheric pressure is by advancing the control chamber C that the relief piston assembly enters boosting piston upper surface, this moment, control chamber D communicated with atmosphere by the exhaust duct of emergency braking solenoid electric valve, promote two-diameter piston and open valve, the atmospheric pressure of source of the gas chamber A is exported through delivery port.Rising along with the next control air pressure of main valve, the relief piston assembly will be controlled atmospheric pressure and be adjusted in the range of regulation, pressure regulation this moment electromagnetic control valve closure inlet channel, the atmospheric pressure of control mouth can't communicate with control chamber C by the gas off-take of pressure regulation solenoid electric valve, how the control air pressure no matter main valve comes raises, the output pressure of delivery port maintains control air pressure gas circuit and shuts in the preceding range of pressure, this moment, the braking force of superimposed trailer was lower than the braking force 20%-50% of tractor truck, the size that the adhesion value that has increased tractor truck makes its braking force as far as possible and the adhesion value between tire and the ground adapt.
The heavy duty glancing impact, the deflection of suspension increases, and the outage of pressure regulation solenoid electric valve quits work, and the control atmospheric pressure enters the upper surface of boosting piston by the relief piston assembly, promotes two-diameter piston and opens valve, and the atmospheric pressure of source of the gas chamber A is exported through delivery port.Rising along with the next control air pressure of main valve, the relief piston assembly will be controlled atmospheric pressure and be adjusted in range of regulation, pressure regulation this moment solenoid electric valve is opened inlet channel, the atmospheric pressure of control mouth communicates with control chamber C by the gas off-take of pressure regulation solenoid electric valve, continue to promote the boosting piston and open valve, and the pressure ratio of having amplified control chamber C and output cavity B by two-diameter piston, improve 15%-50% braking force that does not wait, this moment, vacuum chamber prevention E communicated with barometric control unit by air flue, barometric control unit is by regulating the output ratio that the output cavity atmospheric pressure enters the size adjustment two-diameter piston of vacuum chamber prevention E inner air pressure, the braking force of superimposed trailer is higher than the braking force 20%-50% of tractor truck at this moment, increased the braking force of superimposed trailer, shortened the reflection time of braking, the braking safety when having improved the vehicle heavy duty.
During brake off, when the atmospheric pressure of output cavity B spring force greater than balance spring, open dummy piston, the atmospheric pressure of output cavity B is communicated with vacuum chamber prevention E by inlet channel, air flue, make the upper and lower end face gas pressure balance of two-diameter piston, realize synchronous brake off function with the synchronous exhaust of the atmospheric pressure of control chamber C, the atmospheric pressure that enters vacuum chamber prevention E is by being installed in the exhaust duct of the liner plate in the pressure regulating valve, overcome the spring force of tapered spring, by air flue and output cavity B exhaust to atmosphere.
During the heavy duty emergency braking, when vehicle is in an emergency the need emergency braking, electric signal is opened the inlet channel of emergency braking solenoid electric valve, the atmospheric pressure of air receiver is by vertical air flue, enter the control chamber D of two-diameter piston upper surface by the gas off-take of emergency braking solenoid electric valve, the promotion two-diameter piston is opened valve and is carried out emergency braking, because the electric signal speed of transmission is faster than the speed of transmission of atmospheric pressure, so just further reduced the reaction time of braking again, service brake safety when having improved vehicle heavy duty emergency braking, and when the gas circuit type of transmission of vehicle goes wrong, can pass through the braking safety of the further support vehicles of type of transmission of electric signal.
When trailer braking protection valve was removed, handle was horizontal when superimposed trailer, trailer are connected with main car, and eccentric shaft is with the guiding valve open of level attitude, and the supply air line of main car is communicated with source of the gas chamber A.When the needs superimposed trailer, when trailer and tractor truck break away from, move on the emergency piston valve open, superimposed trailer, trailer is in braking mode and can't moves, chaufeur needs to push handle to upright position, by the guiding valve open of eccentric shaft with the upright position, simultaneously the guiding valve of level attitude under the effect of valve spring with housings close, the atmospheric pressure of trailer air receiver enters source of the gas chamber A by air flue, the emergency piston assembly moves down under the effect of trailer air receiver atmospheric pressure, the atmospheric pressure exhaust to atmosphere of output cavity B, superimposed trailer, trailer braking protection valve is removed, and makes superimposed trailer, trailer can arbitrarily move.Be provided with air extractor duct on the manual top of relief valve, can be connected with the gas facility with other of superimposed trailer, trailer.
The present invention has compared with prior art been installed manual relief valve additional, makes with tractor truck disengaging back superimposed trailer, trailer arbitrarily to move.And can be along with the variation of axle load, automatically regulate braking pressure, the size that the makes braking force as far as possible adhesion condition between tire and ground adapts, increasing automatically controlled emergency braking function again, further ensured the vehicle braked safety, having increased the dummy piston assembly again can make vehicle realize synchronous brake off, further reduce the Tyte Wear amount, and the stability that keeps automobile under various load, various deceleration situation, to brake, highly sensitive, excellent working performance, good stability.
Description of drawings
Fig. 1 is the birds-eye view of the embodiment of the invention;
Fig. 2 is an A-A section-drawing embodiment illustrated in fig. 1;
Fig. 3 is a B-B section-drawing embodiment illustrated in fig. 1;
Fig. 4 is a C-C part sectional view embodiment illustrated in fig. 1;
Fig. 5 is that D embodiment illustrated in fig. 1 is to view.
Among the figure: 1, admission port 2, adaptor union 3, guiding valve 4, housing 5, air extractor duct 6, inlet channel 7, spring perch 8, eccentric shaft 9, valve spring 10, shutoff 11, air flue 12, following valve body 13, two-diameter piston 14, control mouth 15, boosting piston 16, seal ring 17, upper valve body 18, air flue 19, inlet channel 20, gas off-take 21, air flue 22, pressure regulation solenoid electric valve 23, air passage 24, air flue 25, inlet channel 26, exhaust duct 27, emergency braking solenoid electric valve 28, gas off-take 29, vertical air flue 30,1-2 admission port 31, pull back spring 32, Y type leather cup 33, emergency piston 34, valve 35, exhaust seat 36, valve spring 37, valve seat 38, noise reduction dust boot 39, positioning seat 40, pressure spring seat 41, relief piston 42, pressure spring 43, check valve 44, spring 45, spring perch 46, air flue 47, air flue 48, pressure regulating valve 49, balance spring 50, spring perch 51, exhaust duct 52, tapered spring 53, gas off-take 54, air flue 55, dummy piston 56, inlet channel 57, seal ring 58, balance spring 59, equilibrium bomb spring abutment 60, air extractor duct 61, seal ring 62, spring 63, handle 64, bolt 65, guide holder 66, liner plate 67, spring perch 68, adjust piston 69, dust boot
The specific embodiment
In the embodiment shown in Fig. 1～4: in the valve body that constitutes by upper valve body 17 and following valve body 12, relief piston assembly, boosting piston 15, two-diameter piston 13 and emergency piston assembly are installed successively from top to bottom.Wherein the relief piston assembly comprises positioning seat 39, pressure spring seat 40, relief piston 41, pressure spring 42, check valve 43, spring 44, spring perch 45 and air flue 46, the inner wall sealing of the outer wall of relief piston 41 and upper valve body 12 wherein, pressure spring seat 40 is installed in the below of positioning seat 39, pressure spring 42 is fitted between the upper surface of pressure spring seat 40 and relief piston 41, check valve 43 and spring perch 45 be installed in successively relief piston 41 below, spring 44 is fitted between the upper surface of the bottom of check valve 43 and spring perch 45; The sidewall of the big end driving surface of boosting piston 15 and the sealing of the sidewall of upper valve body 17, its small end driving surface forms pilot seal by the twice horizontal seal circle of vertically arrangement and the sidewall of upper valve body 17, small end driving surface sidewall is provided with air extractor vent 23, the lower surface of the lower surface of the upper surface of boosting piston 15 and upper valve body 17 and spring perch 45 constitutes control chamber C, the upper surface of its lower surface and two-diameter piston 13 constitutes control chamber D, upper valve body 17 is provided with air flue 21 and air flue 46, wherein air flue 21 is communicated with the gas off-take 20 and the control chamber C of pressure regulation solenoid electric valve 22, air flue 45 is communicated with the lower surface of control chamber C and relief piston 39, the inlet channel 19 of pressure regulation solenoid electric valve 22 and control mouth 14 UNICOMs that are positioned at upper valve body 17; The sidewall of two-diameter piston 13 forms vacuum chamber prevention E with the inner wall sealing of following valve body 12, air flue 47 UNICOMs of vacuum chamber prevention E and barometric control unit, barometric control unit is installed in down in the valve body 12, comprise pressure regulating valve 48, balance spring 49, adjust seat 50, exhaust duct 51, tapered spring 52, gas off-take 53, liner plate 66, spring perch 67, adjust piston 68 and dust boot 69, wherein spring perch 67 is sleeved on pressure regulating valve 48 side outwardly, in spring perch 67 and pressure regulating valve 48, be provided with the liner plate 66 of band exhaust duct 51, the cooresponding valve body 12 down of pressure regulating valve 48 side inwardly is provided with the gas off-take 53 that is communicated with output cavity B and exhaust duct 51, tapered spring 52 is fitted between pressure regulating valve 48 and the following valve body 12, is pressed with successively between adjustment seat 50 and spring perch 67 and adjusts piston 68 and balance spring 49; Be provided with the dummy piston assembly at following valve body away from the opposite side that is positioned at barometric control unit, comprise dummy piston 55, inlet channel 56, seal ring 57, balance spring 58, equilibrium bomb spring abutment 59, wherein dummy piston 55 is by seal ring 57 and following valve body 12 sealings, balance spring 58 is fitted between dummy piston 55 and the equilibrium bomb spring abutment 59, inlet channel 56 is communicated with output cavity B, and air flue 54 is communicated with vacuum chamber prevention E.The emergency piston assembly comprises Y type leather cup 32, emergency piston 33, valve 34, exhaust seat 35, valve spring 36 and valve seat 37, wherein the upper end of emergency piston 33 sidewalls seals with following valve body 12, the lower end of its sidewall is through exhaust seat 35 and following valve body 12 sealings, Y type leather cup 32 is sleeved on the middle part of emergency piston 33, and with 12 sealings of following valve body, emergency piston 33 and the cavity that following valve body 12 constitutes are partitioned into source of the gas chamber A and source of the gas chamber F, wherein source of the gas chamber A is communicated with inlet channel 6, source of the gas chamber F is communicated with the 1-2 admission port 30 that connects air receiver, be pressed with valve 34 in the emergency piston 33 from top to bottom successively, valve seat 37, and valve seat 37 sealing shrouds are contained in the bottom of valve 34, on valve 33 is positioned at sidewall on the valve seat 37, be provided with guide holder 65, between guide holder 65 and valve seat 37, be pressed with valve spring 36; Manually relief valve comprises handle 63, housing 4 with inlet channel 6 UNICOMs of following valve body 12, the eccentric shaft 8 and two that is installed in the housing 4 overlaps the guiding valve 3 that all is set with valve spring 9, wherein be set with seal ring 61 and housing 4 sealings on the eccentric shaft 8, and its head end level passes housing 4 and captives joint with handle 63, its end is in shutoff 10 is fixed on housing 4, be pressed with spring 62 between shutoff 10 and the eccentric shaft 8, the first cover guiding valve 3 is fitted in the housing 4 by adaptor union 2 levels, the second cover guiding valve 3 vertically is fitted in the housing 4 by shutoff 10, and housing 4 is having through hole on the sidewall between the second cover guiding valve 3 and the shutoff 9, and be provided with air extractor duct 5 away from the other end of shutoff 10 at the second cover guiding valve 3, corresponding with it, following valve body 12 is provided with the air flue 11 that runs through on the sidewall at the air passing hole place that is positioned at emergency piston 33, this air flue 11 and through hole UNICOM; Emergency braking solenoid electric valve 27 is a normally closed two-position three way type solenoid electric valve, be installed in down a side of valve body 12, corresponding valve body 12 down with it is provided with independently air flue 24 and vertically air flue 29, the inlet channel 25 of emergency braking solenoid electric valve 27 is through the air flue 24 source of the gas chamber F of UNICOM, and its gas off-take 28 is communicated with the upper surface of two-diameter piston 13 through air flue 24; The bottom of following valve body 12 is provided with noise reduction dust boot 38 corresponding to the exhaust duct end of emergency piston assembly.
In the embodiment shown in fig. 5: level is provided with three air extractor ducts 60 respectively in following valve body 12 both sides, and three air extractor ducts 60 of each side are the type of falling product and arrange.
Claims (9)
1. electric-controlled load sensing emergency relay valve, comprise the valve body that constitutes by upper valve body (17) and following valve body (12), be installed in the two-diameter piston (13) in the valve body from top to bottom successively, emergency piston assembly and the barometric control unit that is installed in valve body one side, wherein the sidewall of two-diameter piston (13) forms vacuum chamber prevention E with the inner wall sealing of following valve body (12), the air flue of vacuum chamber prevention E and barometric control unit (47) UNICOM, constitute outlet chamber B between the emergency piston (33) in two-diameter piston (13) and following valve body (12) and the emergency piston assembly, emergency piston (33) constitutes source of the gas chamber A with following valve body (12), it is characterized in that: set up the relief piston assembly, pressure regulation solenoid electric valve (22), boosting piston (15), the dummy piston assembly, manual relief valve and emergency braking solenoid electric valve (27), relief piston assembly wherein, boosting piston (15) is installed between the valve body interior upper valve body (17) and two-diameter piston (13) from top to bottom successively, and the sidewall of boosting piston (15) and upper valve body (17) sealing, on it, the lower surface respectively with upper valve body (17), the lower end of spring perch (45) and two-diameter piston (13) sealing constitute control chamber C and control chamber D, the inlet channel (19) of pressure regulation solenoid electric valve (22) and control mouth (14) UNICOM that is positioned at upper valve body (17), its gas off-take (20) is by air flue (21) and control chamber C UNICOM, the dummy piston assembly is installed in down the side of valve body (12) away from barometric control unit, manually relief valve comprises handle (63), housing (4) with inlet channel (6) UNICOM of following valve body (12), the eccentric shaft (8) and two that is installed in the housing (4) overlaps the guiding valve 3 that all is set with valve spring (9), wherein be set with seal ring (61) and housing (4) sealing on the eccentric shaft (8), and its head end level passes housing (4) and captives joint with handle (63), its end is in shutoff (10) is fixed on housing (4), be pressed with spring (62) between shutoff (10) and the eccentric shaft (8), the first cover guiding valve 3 is fitted in the housing (4) by adaptor union (2), the second cover guiding valve 3 is fitted in the housing (4) by shutoff (10), and housing (4) is having through hole on the sidewall between the second cover guiding valve 3 and the shutoff 9, and be provided with air extractor duct (5) away from the other end of shutoff (10) at the second cover guiding valve 3, corresponding with it, following valve body (12) is provided with the air flue (11) that runs through on the sidewall at the air passing hole place that is positioned at emergency piston (33), this air flue (11) and through hole UNICOM, emergency braking solenoid electric valve (27) is installed in down a side of valve body (12), the source of the gas chamber F UNICOM of its inlet channel (25) and emergency piston assembly, its gas off-take (28) is by air flue (24) and control chamber D UNICOM.
2. electric-controlled load sensing emergency relay valve as claimed in claim 1, it is characterized in that: barometric control unit is installed in down in the valve body (12), comprise pressure regulating valve (48), balance spring (49), adjust seat 50, exhaust duct (51), tapered spring (52), gas off-take (53), liner plate (66), spring perch (67), adjust piston (68) and dust boot (69), wherein spring perch (67) is sleeved on pressure regulating valve (a 48) side outwardly, in spring perch (67) and pressure regulating valve (48), be provided with the liner plate (66) of band exhaust duct (51), the cooresponding valve body (12) down of pressure regulating valve (a 48) side inwardly is provided with the gas off-take (53) that is communicated with output cavity B and exhaust duct (51), tapered spring (52) is fitted between pressure regulating valve (48) and the following valve body (12), is pressed with successively between adjustment seat 50 and spring perch (67) and adjusts piston (68) and balance spring (49).
3. electric-controlled load sensing emergency relay valve as claimed in claim 1, it is characterized in that: emergency braking solenoid electric valve (27) is a normally closed two-position three way type solenoid electric valve, corresponding valve body (12) down with it is provided with independently air flue (24) and vertically air flue (29), the inlet channel (25) of emergency braking solenoid electric valve (27) is through the source of the gas chamber F of air flue (24) UNICOM, and its gas off-take is communicated with the upper surface of two-diameter piston (13) through air flue (24).
4. electric-controlled load sensing emergency relay valve as claimed in claim 1, it is characterized in that: the sidewall sealing of the sidewall of the big end driving surface of boosting piston (15) and upper valve body (17), its small end driving surface is by the sidewall formation pilot seal with upper valve body (17) of twice horizontal seal circle longitudinally, small end driving surface sidewall is provided with air passage (23), the lower surface control chamber C of the upper surface of boosting piston (15) and upper valve body (17), the upper surface of its lower surface and two-diameter piston 12 constitutes control chamber D.
5. electric-controlled load sensing emergency relay valve as claimed in claim 1, it is characterized in that: the dummy piston assembly comprises dummy piston (55), inlet channel (56), seal ring (57), balance spring (58), equilibrium bomb spring abutment (59), wherein dummy piston (55) is by seal ring (57) and following valve body (12) sealing, balance spring (58) is fitted between dummy piston (55) and the equilibrium bomb spring abutment (59), inlet channel (56) is communicated with output cavity B, and air flue (54) is communicated with vacuum chamber prevention E.
6. electric-controlled load sensing emergency relay valve as claimed in claim 1, it is characterized in that: the emergency piston assembly comprises Y type leather cup (32), emergency piston (33), valve (34), exhaust seat (35), valve spring (36) and valve seat (37), wherein the upper end of emergency piston (33) sidewall seals with following valve body (12), the lower end of its sidewall is through exhaust seat (35) and following valve body (12) sealing, Y type leather cup (32) is sleeved on the middle part of emergency piston (33), and seal with following valve body (12), emergency piston (33) and the cavity that following valve body (12) constitutes are partitioned into source of the gas chamber A and source of the gas chamber F, wherein source of the gas chamber A is communicated with inlet channel (6), source of the gas chamber F is communicated with the 1-2 admission port (30) that connects air receiver, be pressed with valve (34) in the emergency piston (33) from top to bottom successively, valve seat (37), and valve seat (37) sealing shroud is contained in the bottom of valve (34), on valve 33 is positioned at sidewall on the valve seat (37), be provided with guide holder (65), between guide holder (65) and valve seat (37), be pressed with valve spring (36).
7. electric-controlled load sensing emergency relay valve as claimed in claim 1, it is characterized in that: the relief piston assembly comprises positioning seat (39), pressure spring seat (40), relief piston (41), pressure spring (42), check valve (43), spring (44), spring perch (45) and air flue (46), the inner wall sealing of the outer wall of relief piston (41) and upper valve body 12 wherein, pressure spring seat (40) is installed in the below of positioning seat (39), pressure spring (42) is fitted between the upper surface of pressure spring seat (40) and relief piston (41), check valve (43) and spring perch (45) be installed in successively relief piston (41) below, spring (44) is fitted between the upper surface of the bottom of check valve (43) and spring perch (45), the upper surface of the lower surface of spring perch (45) and boosting piston (15) and upper valve body 12 constitute control chamber C, and air flue (46) is communicated with the lower surface of control chamber C and relief piston (41).
8. electric-controlled load sensing emergency relay valve as claimed in claim 1 is characterized in that: level is provided with six air extractor ducts (60) respectively in following valve body (12) both sides, and three air extractor ducts (60) of each side are the type of falling product and arrange.
9. electric-controlled load sensing emergency relay valve as claimed in claim 1 is characterized in that: the bottom of following valve body (12) is provided with noise reduction dust boot (38) corresponding to the exhaust duct end of emergency piston assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710017038XA CN101372224B (en) | 2007-08-20 | 2007-08-20 | Electric-controlled load sensing emergency relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710017038XA CN101372224B (en) | 2007-08-20 | 2007-08-20 | Electric-controlled load sensing emergency relay valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101372224A true CN101372224A (en) | 2009-02-25 |
| CN101372224B CN101372224B (en) | 2011-08-24 |
Family
ID=40446660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710017038XA Expired - Fee Related CN101372224B (en) | 2007-08-20 | 2007-08-20 | Electric-controlled load sensing emergency relay valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101372224B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106627546A (en) * | 2017-02-20 | 2017-05-10 | 克诺尔制动系统（大连）有限公司 | Commercial vehicle brake system compact rear axle braking module |
| CN108944890A (en) * | 2018-09-07 | 2018-12-07 | 广州市西合汽车电子装备有限公司 | A kind of electromagnet flow relay valve |
| CN110481529A (en) * | 2019-09-18 | 2019-11-22 | 张应彪 | A kind of multi-functional dual modulated type relay valve |
| CN112672939A (en) * | 2018-09-06 | 2021-04-16 | 克诺尔商用车制动系统有限公司 | Guide sleeve for guiding a collar of a relay valve of an electro-pneumatic modulator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3903457A1 (en) * | 1989-02-06 | 1990-08-16 | Graubremse Gmbh | AUTOMATIC LOAD-RELATED BRAKE FORCE REGULATOR |
| DE3915221A1 (en) * | 1989-05-10 | 1990-11-15 | Teves Gmbh Alfred | Dual control unit for hydraulic brakes - has lever of variable length acting via control pistons to vary input to output hydraulic pressure ratio |
| CN2197270Y (en) * | 1994-07-06 | 1995-05-17 | 孙秀珍 | Two pipe-way braking valve for vehicle trailer |
| CN201109427Y (en) * | 2007-08-20 | 2008-09-03 | 淄博龙达金山汽车部件有限公司 | Electrically-controlled load sensing emergency relay valve |
-
2007
- 2007-08-20 CN CN200710017038XA patent/CN101372224B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106627546A (en) * | 2017-02-20 | 2017-05-10 | 克诺尔制动系统（大连）有限公司 | Commercial vehicle brake system compact rear axle braking module |
| CN112672939A (en) * | 2018-09-06 | 2021-04-16 | 克诺尔商用车制动系统有限公司 | Guide sleeve for guiding a collar of a relay valve of an electro-pneumatic modulator |
| US11738731B2 (en) | 2018-09-06 | 2023-08-29 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Guide sleeve for guiding a collar of a relay valve for an electropneumatic modulator |
| CN108944890A (en) * | 2018-09-07 | 2018-12-07 | 广州市西合汽车电子装备有限公司 | A kind of electromagnet flow relay valve |
| CN108944890B (en) * | 2018-09-07 | 2023-12-19 | 广州市西合汽车电子装备有限公司 | Electromagnetic flow relay valve |
| CN110481529A (en) * | 2019-09-18 | 2019-11-22 | 张应彪 | A kind of multi-functional dual modulated type relay valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101372224B (en) | 2011-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201109427Y (en) | Electrically-controlled load sensing emergency relay valve | |
| US7810827B2 (en) | Pilot operated valve with inversion control and pressure hold functions | |
| CA1322014C (en) | Air suspension system with load controlled liftable axle | |
| CN101372224B (en) | Electric-controlled load sensing emergency relay valve | |
| US4593954A (en) | Air brake valve system | |
| CN1919668A (en) | ABS emergency relay valve | |
| JPH06206532A (en) | Hydraulic automobile brake with skid control device | |
| CN100439172C (en) | Double pipe electrically-controlled trailer brake valve | |
| CN100577485C (en) | Electrically controlled trailer brake valve | |
| US4348062A (en) | Tractor air brake proportioning system | |
| CN101372223B (en) | Electric-controlled load sensing proportion valve | |
| US9387846B2 (en) | Modulator valve | |
| CN201009874Y (en) | Pressure changing regulation and control device of vehicle brake | |
| CN202071824U (en) | Single-channel combined type ABS (Antilock Brake System) device | |
| AU607651B2 (en) | Proportioning control valve | |
| CN105946827A (en) | Stepless transformer, relay valve and ABS combination relay valve | |
| CN215922161U (en) | Brake system and five-wheel vehicle | |
| CN101168366A (en) | Electric control load sensor proportion valve | |
| CN2818264Y (en) | ABS emergent relay valve | |
| CN101372227B (en) | Emergency servo and ABS two-chamber servo integrated valve | |
| CN101348113B (en) | Air brake ABS electric control load sensor anti-lock braking executive system | |
| CN211995533U (en) | Novel gas circuit optimization relay valve | |
| CN211995531U (en) | Novel relay valve | |
| CN108515956B (en) | Three-bridge relay valve | |
| CN201128412Y (en) | Variable voltage control device for automobile braking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG UNIVERSITY OF TECHNOLOGY Free format text: FORMER OWNER: ZIBO LONGDA JINSHAN AUTO PARTS CO., LTD. Effective date: 20110421 Owner name: ZIBO LONGDA JINSHAN AUTO PARTS CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Hong Inventor after: Wang Jinshan Inventor after: Wang Feng Inventor after: Zhang Yong Inventor before: Wang Jinshan Inventor before: Wang Feng Inventor before: Zhang Yong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 255200 NO. 22, WULONG EAST ROAD, BOSHAN DISTRICT, ZIBO CITY, SHANDONG PROVINCE TO: 255086 1012, TOWER D, HIGH-TECH. VENTURE PARK, HIGH-TECH. INDUSTRIAL DEVELOPMENT ZONE, ZIBO CITY, SHANDONG PROVINCE Free format text: CORRECT: INVENTOR; FROM: WANG JINSHAN WANG FENG ZHANG YONG TO: WU HONG WANG JINSHAN WANG FENG ZHANGYONG |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110421 Address after: 255086 Zibo high tech Industrial Development Zone, Shandong Province, Chuang Chuang D block, 1012 Applicant after: Shandong University of Technology Co-applicant after: Zibo Longda Jinshan Auto Parts Co., Ltd. Address before: Boshan Wulong road 255200 Shandong city of Zibo province No. 22 Applicant before: Zibo Longda Jinshan Auto Parts Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20130820 |