GB/T 3367.4-2018 in English
VALIDGlossary of terms for diesel locomotive—Part 4:Hydraulic transmission system
- Issued on:2018-06-07
- Implemented on:2019-01-01
- File Format:PDF
- Delivery:Within 1 day
$427.00
| Standard No: | GB/T 3367.4-2018 |
| Document status: | VALID |
| Title in English: | Glossary of terms for diesel locomotive—Part 4:Hydraulic transmission system |
| Title in Chinese: | 内燃机车词汇 第4部分：液力传动系统 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Within 1 day |
| Issued on: | 2018-06-07 |
| Implemented on: | 2019-01-01 |
| Superseding: |
GB/T 3367.2-2000 Glossary of terms for railway locomotive Names of component parts for hydraulic transmission system
GB/T 3367.8-2000 Glossary of terms for railway locomotive Terms of hydraulic transmission |
| ICS Classification: | 01.040.45-Railway engineering (Vocabularies) |
| Chinese Classification: | S40-Locomotives in general |
| Professional Classification: | GB-National Standard |
| Related Keywords: | hydraulic transmission system introduction standard update
hydraulic transmission double-flow hydraulic mechanical transmission + mechanical transmission transmission modes |
| Related Topics: | GBT3367.4
GB/T 3367.4-2000 GB/T 3367.4-2018 |
《GB/T 3367.4-2018内燃机车词汇 第4部分：液力传动系统》由347（国家铁路局）归口，主管部门为国家铁路局。
Introduction
Standard Update and Technological Evolution
| Version Comparison Dimensions | 2000 Version of the Standard | 2018 Version of the Standard |
|---|---|---|
| Term Structure | Mixed General and Special Terms | Only Special Terms are Retained |
| New Content | Electronic Control System is Not Included | 21 New Terms Including Electronic Control System are Added |
| Technical Classification | Classification by Components | Rearranged by Functional System |
Analysis of the core terminology system
2.1 Types of hydraulic transmission
The standard defines seven transmission modes, among which dual-flow hydraulic-mechanical transmission (2.1.6) improves efficiency by 15-20% by transmitting power in parallel; hybrid hydraulic-mechanical transmission (2.1.7) switches to pure mechanical transmission in the high-speed section, achieving significant energy-saving effects.
2.2 Classification of hydraulic components
Hydraulic torque converters (2.2.1.4) are divided into the following types according to the speed ratio: - Low-speed type (ηmax point speed ratio <0.5) - Medium-speed type (0.5-0.7) - High-speed type (>0.7)
Typical application case: DF4B locomotive uses a three-stage torque converter (2.2.1.7) to achieve wide speed range matching.
Key Performance Parameters
| Parameter | Definition | Calculation Formula | Typical Value |
|---|---|---|---|
| Torque Ratio (2.2.3.3) | Turbine/Pump Torque Ratio | K=MT/MB | 2.5-3.5 |
| Penetration (2.2.3.18) | Torque Coefficient Change Rate | T=λM0/λM* | 1.2-2.0 |
| High efficiency zone (2.2.3.21) | η≥80% operating range | i2/i1 | 2.0-2.8 |
Implementation suggestions
- Selection and matching: Select vertical (2.3.3.1) or horizontal transmission box (2.3.3.2) according to the locomotive power level
- Maintenance focus: Regularly check the viscosity and cleanliness of circulating oil (2.4.1.7)
- Fault diagnosis: Combined with the real-time monitoring function of the electronic control system (2.4.2.40)
Typical configuration scheme
Heavy-duty locomotives are recommended to adopt the combination of double-flow hydraulic mechanical transmission + electronically controlled shifting (2.4.2.40.6), which can reduce fuel consumption by 8-12%.
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