CN100434770C - Torque converter clutch apply valve and improved automatic transinission for motov vehicle, and method for restoring its hydraulic integraty - Google Patents
Torque converter clutch apply valve and improved automatic transinission for motov vehicle, and method for restoring its hydraulic integraty Download PDFInfo
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- CN100434770C CN100434770C CNB2004100928825A CN200410092882A CN100434770C CN 100434770 C CN100434770 C CN 100434770C CN B2004100928825 A CNB2004100928825 A CN B2004100928825A CN 200410092882 A CN200410092882 A CN 200410092882A CN 100434770 C CN100434770 C CN 100434770C
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- oil seal
- change
- clutch
- valve
- application valve
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Abstract
The present invention provides an automatic speed changing box and a method for restoring the hydraulic integrity thereof of an application valve of a torque-changing clutch and an improved motor vehicle, which regulates the replacement of the torque-changing clutch in the automatic speed changing box. The present invention provides a replacing application valve of the torque-changing clutch, which comprises an application valve plug which is provided with an expansible oil-seal ring made of polyfluortetraethylene, such as teflon or other similar material, wherein the application valve plug is arranged on the main abrasion position in a valve body to reduce ATF leakage, the application valve plug also comprises an inner fluid flow passage of which the inner passage extends radially along the radial direction, and the passage and an annular groove of which the expansible oil-seal ring is arranged on are formed into the mutual communication of liquid. Whenever the application valve of the torque-changing clutch is driven by an electromagnetic valve of the torque-changing clutch, the ATF is forced to enter the passage of the application valve plug by the TCC signal pressure, the oil-seal ring is further prompted to expand outside from the radial direction to be in contact with holes, so the ATF leakage can be minimized by the torque-changing clutch in the application cyclic process.
Description
Technical field
The present invention is mainly relevant with the field of oil hydraulic circuit in the automatic transmission case, more particularly, be to turn round clutch (to call " TCC " in the following text) Operating valve about the change in General Motors 4T60-E and other the similar gearbox, it passes torque converter hydraulic pressure to the TCC effect and discharge the loop turns round clutch to drive to become.
Background technique
An oil hydraulic circuit subtense angle is arranged in original design of automatic transmission case system, this subtense angle comprises an oil hydraulic pump at least, valve body with liquid conductive passage or loop, be positioned at the input and output mouth of fluid loop, and a plurality of so-called " spinning the shape valve ", because the similar axle that spins of its shape.This shape valve that spins is by forming through improved cylindrical piston, piston alternately opens and closes the liquid entrance in the valve body, come the flow and the pressure of ATF in the regulator solution hydraulic circuit (to call " ATF " in the following text) with this, thereby drive each different parts of gearbox.Should be understood that when describing oil hydraulic circuit, ATF can change title usually through throttle orifice in a certain concrete loop or control valve the time.
TCC effect and what discharge ATF seepage in the loop is because the TCC Operating valve of steel vibration constantly and fricting movement in the matching hole of aluminium valve body cause that this has caused the loss of torque converter effect pressure.The pressure loss in the TCC effect loop causes that TCC skids, torque converter trembles, and finally makes torque converter overheated and/or burn out.Therefore, some other shortcoming in addressing these problems and originally designing is put forth effort in the exploitation of the present invention.
Referring to schematic representation, as shown in Figure 1, can see the TCC Operating valve 300 in original design.In original design, TCC Operating valve 300 is valves of a bobbin, and it has comprised a plunger 335 and the pressure spring 336 with lengthening of a plurality of control ring piston ring lands.
Fig. 2 has shown the diagrammatic view of a valve body 301, and its inner TCC Operating valve 300 is positioned at the position shown in the figure.When the TCC closed electromagnetic valve, TCC Operating valve 300 is placed in position shown in Figure 2 under the effect of the working connection pressure at spring force and 345A place.On this position, the input of the torque converter at 305 places is compressed into into change and is turned round clutch release loop 350, and liquid is flowed around valve, and flows into chiller circuit 310.When TCC solenoid valve 315 was opened, the TCC signal oil overcame working connection pressure and spring force comes movement of valve.When it is driven (shift among Fig. 2 right-hand), it imports TCC effect loop 330 with the working connection pressure of being regulated at 345A place.
Under the effect of mechanical wear, seepage finally can be in 330 in-house developments of TCC effect loop, and the 4T60E gearbox can show the diagnostic trouble code that torque converter trembles, torque converter burns out, clutch lost efficacy and/or be correlated with.These problems often are that the valve body 301 of the TCC Operating valve 300 wearing and tearing aluminums made owing to the Chilled Hardened Steel material of first wife manufacturer (to call " OEM " in the following text) causes.The consequently hydraulic slip in the TCC effect loop 330 needs to replace expensive valve body 301.
Summary of the invention
The invention provides that clutch application valve is turned round in a kind of change and through the automatic transmission case of improved motor vehicle and recover the method for its fluid power integrity, it can reduce change in the gearbox and turn round hydraulic slip in the clutch effect loop.
For solving the problems of the technologies described above, the invention provides following technological scheme:
Provide a kind of change to turn round clutch application valve, it uses in the automatic transmission case valve body, it is turned round the hydraulic pressure effect in the clutch engagement signal loop according to change and discharges to become and turns round clutch, it comprises: an effect valve plug that comprises the major control land, described major control land comprise at least one annular oil seal groove of portion within it; One places the wear-resisting expansible oil seal ring in the described annular oil seal groove; Be placed in described Operating valve sealing expanding unit beyond the Great Wall, make described expansible oil seal ring turn round the variation that clutch engagement signal presses and expand according to turning round the synchronous change of the effect circulation of clutch application valve with described change.
A kind of method of recovering to become in the automatic transmission case valve body fluid power integrity of turning round clutch effect loop is provided at last, one of them change is turned round clutch application valve and is turned round clutch formation oil hydraulic circuit by clutch effect loop and change, change is wherein turned round clutch application valve and is also turned round clutch engagement signal loop formation hydraulic communication with change, and described method comprises the steps: that clutch is turned round in OEM first wife's change to be unloaded from valve body; Provide the change of a replacement to turn round the clutch application valve plug, described valve plug inside has an interior fluid passage, is interconnected with annular oil seal groove on the described valve plug; In described annular oil seal groove, install one and can expand seal arrangement; Described substitution valve plug is positioned in the valve body, makes from the torque converter signal circuit and flow through the above-mentioned seal arrangement expanded of hydraulic pressure compressing described interior fluid passage, that change synchronously with the driving of Operating valve by radially expansion outward.
The present invention compared with prior art, have following remarkable progress: this invention provides one to utilize the change of the expansible oil seal ring that polytetrafluoroethylmaterial material (such as Teflon or other similar material) makes to turn round clutch application valve, it is installed in the main eroded area of valve body, has prevented to become to turn round the loss of regulating oil circuit pressure in the clutch effect loop.And the oil sealing groove in the oil seal ring is by the inside ATF passage in the effect valve plug, turn round the clutch engagement signal loop with change and form hydraulic communication, therefore, when this change is turned round clutch application valve and is turned round the clutch engagement signal circuit pressure and drive by change, oil seal ring is expanded simultaneously, sealed to become and turned round clutch effect loop, make it in the effect circulation, reach the ATF pressure of change being turned round the clutch maximum, and then reduced the faults such as diagnostic trouble code that torque converter trembles, torque converter burns out, clutch lost efficacy and/or be correlated with.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail:
Fig. 1 is marked by " original design ", exploded view;
Fig. 2 is marked by " original design ", is the schematic representation of the valve body of the 4T60E of General Motors Corporation gearbox, and the TCC Operating valve that this figure shows (promptly become and turn round clutch application valve) is in its locking working position;
Fig. 3 is the exploded view of the TCC Operating valve among the present invention, and the valve body of General Motors 4T60E gearbox;
Fig. 4 is the longitdinal cross-section diagram of the TCC effect valve plug among the present invention;
Fig. 5 is the amplification longitdinal cross-section diagram of TCC Operating valve in the gearbox valve body that shows among the present invention;
Fig. 6 A is the enlarged side view that shows expansible oil seal ring, has shown its joint otch among the figure;
Fig. 6 B is the plan view of 6B-6B line in Fig. 6 A, has shown the angular positioning that the intermediate circumference plane of joint otch and expansible oil seal ring forms.
Embodiment
Fig. 3 has shown replacement TCC Operating valve assembly 100 of the present invention.This TCC Operating valve assembly 100 has comprised an effect valve plug 110, and it has a PTFE that can magnify (Teflon).Expansible oil seal ring 102 or other similar oil seal ring, it is placed in abration position main in the hole 325 to prevent the ATF seepage.Expansible oil seal ring 102 may comprise a spreader spring of selecting for use 105, and it is placed in expansible oil seal ring inside, is in coaxial position relation with expansible oil seal ring.
Fig. 4 has shown effect valve plug 110 more detailed structural characteristicss.Effect valve plug 110 provides and has comprised structure and the characteristic that can expand oil sealer, including, but not limited to following structure.Effect valve plug 110 comprises a major control land 115, and an annular oil seal groove 108 is arranged in it, and it has enough degree of depth and admits expansible oil seal ring 102.Expansible oil seal ring 102 roughly is rectangular on the cross section of joint otch (otch of the circumferential plane in the middle of promptly cutting with the oblique angle), as Fig. 6 A and 6B shown in 125, like this can be so that its radially expansion when running.The spreader spring of selecting for use 105 is used for supporting expansible oil seal ring 102 to minimize the seepage of ATF from TCC effect loop under state of rest (being releasing state).
In addition, the ATF passage that effect valve plug 110 has an inside lubricates and expands expansible oil seal ring 102, it has comprised the axial ATF fluid passage 112 of axle-A-longitudinally, its extend to certain depth with at least one radially fluid passage 114 form being communicated with of hydraulic pressure, and radially fluid passage 114 forms being communicated with of hydraulic pressure with annular oil seal groove 108.The TCC signal pressure enters fluid passage 112 in the effect cyclic process, shown in the direction arrow among Fig. 5 370, the radially fluid passage 114 of flowing through, enter annular oil seal groove 108, impel expansible oil seal ring 102 by radially expanding outward keeping and the contacting of hole 325, thereby prevent the hydraulic slip in the TCC effect circulates.
Fig. 4 has clearly illustrated that a coaxial recess diameter 116 fuses the major control land 115 and the first control ring piston ring land 118, plays the effect of regulating ATF, makes it to flow to become to turn round clutch release loop 350 (see figure 5)s.Equally, coaxial recess diameter 120 connects together the first control ring piston ring land 118 and the second control ring piston ring land 122.Coaxial recess diameter 124 fuses the second control ring piston ring land 122 and the 3rd control ring piston ring land 126, and control ATF flows to chiller circuit 310 (see figure 5)s.Coaxial recess diameter 128 fuses the 3rd control ring piston ring land 126 and the 4th control ring piston ring land 130.The 4th control ring piston ring land 130 has comprised a spring housing 132, and pressure spring 336 is placed in one.
See that in conjunction with Fig. 4,5 work as the TCC solenoid valve in the running and be closed, current TCC effect valve plug 110 is offset to the release position shown in Fig. 5 under spring force and the effect of working connection pressure.The torque converter input is compressed into into change and is turned round clutch release loop 350 on this position, and liquid is flowed around effect valve plug 110, enters the chiller circuit 310 shown in the figure.On the contrary, when the TCC solenoid valve was opened, TCC signal pressure (as 365 positions among Fig. 5) overcomes working connection pressure and spring force will act on valve plug 110 promotions.When effect valve plug 110 is driven (shifting to the left of position shown in Fig. 5), the working connection pressure that it will be regulated (as 345 positions among Fig. 5) imports TCC effect loop 330, torque converter input oil (as 355 positions among Fig. 5) enters chiller circuit 310, and torque converter is discharged oil (as 350 positions among Fig. 5) row to outlet 360.Simultaneously, TCC signal pressure (as 365 positions among Fig. 5) enters ATF passage 112,114, in the pressure current downflow, by the radial outward expansion, acts on expansible oil seal ring 102 in the circulation and best sealing between the hole 325 to be provided at.
See that in conjunction with Fig. 1,3,4 installation steps of replacing TCC Operating valve 100 are like this: OEM valve 300 and pressure spring 336 are taken out in valve body 301.Abandon OEM valve 300, but keep original pressure spring 336.In some applications, one has that the newer pressure spring 336 of high elastic coefficient may be better.Then, annular oil seal groove 108 places on substitution valve plug 110 add lubricant oil, with the spreader spring 105 selected for use and the expansible oil seal ring 102 annular oil seal groove 108 of packing into, make the outer surface of expansible oil seal ring 102 can not be higher than the surface of major control land 115.After this, in the spring housing 132 that OEM pressure spring 336 is inserted in the 4th control ring piston ring land 130.Then, carefully TCC Operating valve 100 and the pressure spring 336 that combines pushed in the valve opening 325, spring one end at first enters, as shown in Figure 5.
In installation process, when expansible oil seal ring 102 was pushed over perforate in the valve body 301, it was very important that expansible oil seal ring 102 fully is in the annular oil seal groove 108.Then, TCC solenoid valve 315 and O type ring oil sealing 316 and fixed chuck 314 (Fig. 1) are installed.Then, use a little screw-driver or other proper tools, in hole 325, slide carefully and replace TCC Operating valve 100, in installation, be not stuck to guarantee current valve.
Although do not particularly point out in the diagram, should be appreciated that equipment and structure member that other is required can be provided, all above-mentioned parts all can rationally be arranged and be supported to form the exercisable TCC Operating valve of a complete sum mechanism that comprises characteristic of the present invention.
Claims (9)
1, clutch application valve is turned round in a kind of change, and it uses in the automatic transmission case valve body, and it is turned round the hydraulic pressure effect in the clutch engagement signal loop according to change and discharge to become and turns round clutch, it is characterized in that it comprises:
An effect valve plug that comprises the major control land, described major control land comprise at least one annular oil seal groove of portion within it;
One places the wear-resisting expansible oil seal ring in the described annular oil seal groove;
Be placed in described Operating valve sealing expanding unit beyond the Great Wall, make described expansible oil seal ring turn round the variation that clutch engagement signal presses and expand according to turning round the synchronous change of the effect circulation of clutch application valve with described change.
2, clutch application valve is turned round in change as claimed in claim 1, it is characterized in that: described sealing expanding unit has comprised that places the spreader spring in the described annular oil seal groove, be in coaxial position relation with above-mentioned wear-resisting expansible oil seal ring, make it under quiescent conditions, can expand described expansible oil seal ring.
3, clutch application valve is turned round in change as claimed in claim 1, it is characterized in that: described sealing expanding unit has comprised an interior fluid passage in above-mentioned valve plug, form hydraulic communication with described annular oil seal groove, make the described interior fluid passage of flowing through, turn round the hydraulic pressure that the effect circulation of clutch application valve changes synchronously with described change and oppress described expansible oil seal ring by radially expansion outward.
4, clutch application valve is turned round in change as claimed in claim 3, it is characterized in that: described interior fluid passage comprises the fluid passage of a longitudinal register, forms hydraulic communication with at least one arranged radially, the fluid passage that stretches to described annular oil seal groove.
5. clutch application valve is turned round in change as claimed in claim 1, it is characterized in that: described expansible oil seal ring is made by polytetrafluoroethylmaterial material.
6, clutch application valve is turned round in change as claimed in claim 5, it is characterized in that: described expansible oil seal ring is rectangular on cross section.
7, clutch application valve is turned round in change as claimed in claim 6, it is characterized in that: described expansible oil seal ring is cut open with an oblique angle of relative its middle circumferential plane, so that it is installed in the described annular oil seal groove, and is convenient to described oil seal ring and turns round outwards expansion in the clutch running in change.
8, a kind of method of recovering to become in the automatic transmission case valve body fluid power integrity of turning round clutch effect loop, one of them change is turned round clutch application valve and is turned round clutch effect loop and change by change and turn round clutch and form oil hydraulic circuit, change is wherein turned round clutch application valve and is also turned round clutch engagement signal loop formation hydraulic communication with change, and it is characterized in that: described method comprises the steps:
Clutch is turned round in OEM first wife's change to be unloaded from valve body;
Provide the change of a replacement to turn round the clutch application valve plug, described valve plug inside has an interior fluid passage, is interconnected with annular oil seal groove on the described valve plug;
In described annular oil seal groove, install one and can expand seal arrangement;
Described substitution valve plug is positioned in the valve body, makes from the torque converter signal circuit and flow through the above-mentioned seal arrangement expanded of hydraulic pressure compressing described interior fluid passage, that change synchronously with the driving of Operating valve by radially expansion outward.
9, become the method for the fluid power integrity of turning round clutch effect loop in the recovery automatic transmission case valve body as claimed in claim 8, it is characterized in that: wherein installation steps further comprise following a few step:
Described effect valve plug is inserted in the internal diameter of annular oil seal, described annular oil seal has rectangular cross section, and the otch of described annular oil seal and the circumferential plane of described annular oil seal form an oblique angle, so that it can be radially to expand;
With above-mentioned annular oil seal slip into the corresponding to position of above-mentioned annular oil seal groove on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100928825A CN100434770C (en) | 2004-11-16 | 2004-11-16 | Torque converter clutch apply valve and improved automatic transinission for motov vehicle, and method for restoring its hydraulic integraty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100928825A CN100434770C (en) | 2004-11-16 | 2004-11-16 | Torque converter clutch apply valve and improved automatic transinission for motov vehicle, and method for restoring its hydraulic integraty |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1776262A CN1776262A (en) | 2006-05-24 |
| CN100434770C true CN100434770C (en) | 2008-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100928825A Expired - Fee Related CN100434770C (en) | 2004-11-16 | 2004-11-16 | Torque converter clutch apply valve and improved automatic transinission for motov vehicle, and method for restoring its hydraulic integraty |
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| CN (1) | CN100434770C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704586B (en) * | 2017-02-28 | 2018-04-10 | 中冶华天南京工程技术有限公司 | For changing the sealing device of sealing ring tankful rate |
| CN111589390B (en) * | 2020-06-02 | 2021-10-26 | 无锡职业技术学院 | Shaft seal device suitable for stirring shaft of ultrahigh pressure reaction kettle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4403922A (en) * | 1980-09-29 | 1983-09-13 | Roeder George K | Seal gland improvements for hydraulically actuated downhole pumps |
| US4840379A (en) * | 1988-06-29 | 1989-06-20 | Greene, Tweed & Co. | Split sealing ring having a bias cut |
| US5964378A (en) * | 1997-07-30 | 1999-10-12 | Carpenter Co. | Dispensing system, components of a dispensing system, and method of manufacturing, operating and servicing a dispensing system and components thereof |
| CN2483560Y (en) * | 2001-07-10 | 2002-03-27 | 蒋国华 | Pressure-compensation type radical sealing device |
| US6585002B2 (en) * | 2001-06-29 | 2003-07-01 | Sonnax Industries, Inc. | Pressure regulator valve |
| US6736747B1 (en) * | 2002-01-23 | 2004-05-18 | Sonnax Industries, Inc. | Forward clutch control valve assembly |
-
2004
- 2004-11-16 CN CNB2004100928825A patent/CN100434770C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4403922A (en) * | 1980-09-29 | 1983-09-13 | Roeder George K | Seal gland improvements for hydraulically actuated downhole pumps |
| US4840379A (en) * | 1988-06-29 | 1989-06-20 | Greene, Tweed & Co. | Split sealing ring having a bias cut |
| US5964378A (en) * | 1997-07-30 | 1999-10-12 | Carpenter Co. | Dispensing system, components of a dispensing system, and method of manufacturing, operating and servicing a dispensing system and components thereof |
| US6585002B2 (en) * | 2001-06-29 | 2003-07-01 | Sonnax Industries, Inc. | Pressure regulator valve |
| CN2483560Y (en) * | 2001-07-10 | 2002-03-27 | 蒋国华 | Pressure-compensation type radical sealing device |
| US6736747B1 (en) * | 2002-01-23 | 2004-05-18 | Sonnax Industries, Inc. | Forward clutch control valve assembly |
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| Publication number | Publication date |
|---|---|
| CN1776262A (en) | 2006-05-24 |
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Granted publication date: 20081119 Termination date: 20091216 |