CN202992149U - Hydraulic torque converter oil line for automatic transmission - Google Patents
Hydraulic torque converter oil line for automatic transmission Download PDFInfo
- Publication number
- CN202992149U CN202992149U CN 201220681552 CN201220681552U CN202992149U CN 202992149 U CN202992149 U CN 202992149U CN 201220681552 CN201220681552 CN 201220681552 CN 201220681552 U CN201220681552 U CN 201220681552U CN 202992149 U CN202992149 U CN 202992149U
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- CN
- China
- Prior art keywords
- torque converter
- control valve
- hydraulic torque
- fluid torque
- oil
- 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.)
- Expired - Lifetime
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- Control Of Transmission Device (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
The utility model relates to a hydraulic torque converter oil line for an automatic transmission, which comprises an oil pump and a hydraulic torque converter, wherein a main oil line pressure regulation control valve is arranged between the oil pump and the hydraulic torque converter and is connected with a main oil line pressure regulation electromagnetic valve, a hydraulic torque converter control valve is arranged between the main oil line pressure regulation control valve and the hydraulic torque converter, the hydraulic torque converter control valve is connected with the hydraulic torque converter electromagnetic valve, a hydraulic torque converter bypass oil line is communicated between an oil inlet of the main oil line pressure regulation control valve and an oil outlet of the main oil line pressure regulation control valve, and a throttle hole in 1mm is formed on the hydraulic torque converter bypass oil line. When the flow of hydraulic oil pumped from the oil pump is too low or faults occur to the main oil line pressure regulation control valve, the bypass oil line can supplement flow for the hydraulic torque converter and boost the pressure, the flow of the hydraulic oil flowing to the hydraulic torque converter is guaranteed to be sufficient, so that the normal operation of the hydraulic torque converter is guaranteed, and the work reliability of the hydraulic torque converter is improved.
Description
Technical field
The utility model relates to a kind of oil circuit, is applicable to the automatic transmission fluid torque converter, specifically, relates to a kind of hydraulic torque converter for automatic transmission oil circuit, belongs to the automatic transmission technical field.
Background technique
In the hydraulic control system of automatic transmission, the fluid torque converter normal operation needs sufficient hydraulic oil to flow through, due to when the low engine speed, the hydraulic fluid flow rate that oil pump produces is too low, cause flowing to the hydraulic fluid flow rate deficiency of fluid torque converter, fluid torque converter can't work, and causes whole speed changer work undesired.
At present, the hydraulic oil that ATF pump pumps transfers to working connection, after the process working connection, one the tunnel transfers to clutch oil circuit, another road enters the working connection pressure-adjusting control valve, and then enter torque-converters through the fluid torque converter control valve and separate oil circuit and transfer to fluid torque converter, flowing through, hydraulic oil enters the torque converter locking oil circuit after fluid torque converter, be connected to lubricating oil path through the fluid torque converter control valve, the range of working pressure of working connection pressure-adjusting control valve is 5～20bar, and the range of working pressure of fluid torque converter control valve is-2～8bar.
In realizing process of the present invention, the inventor finds to exist at least in prior art following problem, and when the hydraulic fluid flow rate of oil pump generation was too low, the hydraulic fluid flow rate that flows to fluid torque converter was not enough, and fluid torque converter can't work; When the working connection pressure-adjusting control valve breaks down, fluid torque converter can't be worked.
The model utility content
The technical problems to be solved in the utility model is for above deficiency, a kind of hydraulic torque converter for automatic transmission oil circuit is provided, the defective that when having overcome low engine speed in the prior art or working connection pressure-adjusting control valve and breaking down, fluid torque converter can't work, after adopting bleed off circuit of the present utility model, have advantages of that the hydraulic oil of fluid torque converter is in liberal supply, reliable operation, stable performance.
for solving above technical problem, the utility model is by the following technical solutions: a kind of hydraulic torque converter for automatic transmission oil circuit, comprise oil pump and fluid torque converter, be provided with the working connection pressure-adjusting control valve between oil pump and fluid torque converter, the control end of working connection pressure-adjusting control valve is connected with working connection pressure electromagnetic valve for adjusting, be provided with the fluid torque converter control valve between working connection pressure-adjusting control valve and fluid torque converter, the control end of fluid torque converter control valve is connected with the fluid torque converter solenoid valve, it is characterized in that: be communicated with the fluid torque converter bleed off circuit between the oil outlet of the filler opening of described working connection pressure-adjusting control valve and working connection pressure-adjusting control valve.
A kind of optimized project, described fluid torque converter bleed off circuit is provided with the 1mm throttle orifice.
after the utility model adopts above technological scheme, compared with prior art, have the following advantages: set up bleed off circuit between the oil outlet of the filler opening of working connection pressure-adjusting control valve and working connection pressure-adjusting control valve, bleed off circuit is provided with the 1mm throttle orifice, when too low the or working connection pressure-adjusting control valve of the hydraulic fluid flow rate that pumps when oil pump breaks down, bleed off circuit can be fluid torque converter and replenishes flow and supercharging, the hydraulic fluid flow rate that assurance flows to fluid torque converter is sufficient, and then guaranteed the normal operation of fluid torque converter, improved the functional reliability of fluid torque converter.
Below in conjunction with drawings and Examples, the utility model is elaborated.
Description of drawings
Accompanying drawing 1 is the structural representation of fluid torque converter oil circuit in the utility model embodiment;
In figure,
The 1-working connection, 2-removes lubricating oil path, and 3-removes clutch oil circuit, 4-fluid torque converter bleed off circuit, the 5-torque-converters separates oil circuit, 6-torque converter locking oil circuit, 7-oil pump, 8-working connection pressure-adjusting control valve, 9-fluid torque converter control valve, the 10-fluid torque converter, 11-working connection pressure electromagnetic valve for adjusting, 12-fluid torque converter solenoid valve.
Embodiment
embodiment, as shown in Figure 1, a kind of hydraulic torque converter for automatic transmission oil circuit, comprise oil pump 7 and fluid torque converter 10, oil pump 7 is communicated with working connection 1, working connection 1 is connected with clutch oil circuit 3 and working connection pressure-adjusting control valve 8, the control end of working connection pressure-adjusting control valve 8 is connected with working connection pressure electromagnetic valve for adjusting 11, the oil outlet of working connection pressure-adjusting control valve 8 is connected with fluid torque converter control valve 9, the control end of fluid torque converter control valve 9 is connected with fluid torque converter solenoid valve 12, the oil outlet of fluid torque converter control valve 9 is connected with torque-converters and separates oil circuit 5, torque-converters separates oil circuit 5 and is communicated with fluid torque converter 10, fluid torque converter 10 is communicated with torque converter locking oil circuit 6, torque converter locking oil circuit 6 is communicated with lubricating oil path 2 through fluid torque converter control valve 9,
Be communicated with fluid torque converter bleed off circuit 4 between the oil outlet of the filler opening of described working connection pressure-adjusting control valve 8 and working connection pressure-adjusting control valve 8, described fluid torque converter bleed off circuit 4 is provided with the 1mm throttle orifice.
During work, oil pump 7 provides fluid for working connection 1, and when normal, in working connection 3, oil mass is sufficient when oil pump 7 rotating speeds, and the oil mass by working connection pressure-adjusting control valve 8 can satisfy fluid torque converter 10 normal operations; When oil pump 7 rotating speeds are low, the hydraulic fluid flow rate that oil pump 7 produces is too low, cause to satisfy by the fluid flow after working connection pressure-adjusting control valve 8 normal operation of fluid torque converter 10, cause whole speed changer work undesired, fluid torque converter bleed off circuit 4 is communicated with fluid torque converter 10 and working connection 1, make fluid torque converter 10 inner fluid oil masses still can be met when too low at oil pump 7 rotating speeds, guarantee fluid torque converter 10 normal operations; When working connection pressure-adjusting control valve 8 breaks down, working connection pressure-adjusting control valve 8 can't provide fluid for fluid torque converter 10, at this moment, the fluid that oil pump 7 provides transfers to fluid torque converter 10 through fluid torque converter bleed off circuit 4, guarantee fluid torque converter 10 normal operations, make that speed changer work is more reliable, safety; Owing to only increasing a bleed off circuit, do not need to increase other Protective valves simultaneously, therefore, realizing having reduced again cost under the prerequisite of same function.
The above is giving an example of the utility model preferred forms, and the part of wherein not addressing in detail is those of ordinary skills' common practise.Protection domain of the present utility model is as the criterion with the content of claim, and any equivalent transformation that carries out based on technology enlightenment of the present utility model is also within protection domain of the present utility model.
Claims (2)
1. hydraulic torque converter for automatic transmission oil circuit, comprise oil pump (7) and fluid torque converter (10), be provided with working connection pressure-adjusting control valve (8) between oil pump (7) and fluid torque converter (10), the control end of working connection pressure-adjusting control valve (8) is connected with working connection pressure electromagnetic valve for adjusting (11), be provided with fluid torque converter control valve (9) between working connection pressure-adjusting control valve (8) and fluid torque converter (10), the control end of fluid torque converter control valve (9) is connected with fluid torque converter solenoid valve (12), it is characterized in that: be communicated with fluid torque converter bleed off circuit (4) between the oil outlet of the filler opening of described working connection pressure-adjusting control valve (8) and working connection pressure-adjusting control valve (8).
2. a kind of hydraulic torque converter for automatic transmission oil circuit as claimed in claim 1, it is characterized in that: described fluid torque converter bleed off circuit (4) is provided with the 1mm throttle orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220681552 CN202992149U (en) | 2012-12-12 | 2012-12-12 | Hydraulic torque converter oil line for automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220681552 CN202992149U (en) | 2012-12-12 | 2012-12-12 | Hydraulic torque converter oil line for automatic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202992149U true CN202992149U (en) | 2013-06-12 |
Family
ID=48563330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220681552 Expired - Lifetime CN202992149U (en) | 2012-12-12 | 2012-12-12 | Hydraulic torque converter oil line for automatic transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202992149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402376A (en) * | 2016-10-10 | 2017-02-15 | 联合汽车电子有限公司 | Pressure control method of main oil way of automatic transmission |
-
2012
- 2012-12-12 CN CN 201220681552 patent/CN202992149U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402376A (en) * | 2016-10-10 | 2017-02-15 | 联合汽车电子有限公司 | Pressure control method of main oil way of automatic transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |