FIELD: transport engineering. SUBSTANCE: drive unit for vehicles has engine, gearbox, hydrodynamic retarder-brake constantly coupled with engine. Drive unit has also cooling liquid circuit whose cooling liquid serves simultaneously as working liquid of retarder-brake which can be used as cooling liquid pump. Retarder-brake is placed in power flow before gearbox and can be included into common brake unit together with engine brake. Common brake unit is made so that retarder-brake can operate in process of braking earlier than engine brake. Method of operation of drive unit comes to the following: retarder-brake creates first fraction of total braking power, and engine brake provides second fraction of total braking power. EFFECT: provision of stable braking, reduced overall dimensions and enhanced braking response of vehicle. 5 cl, 8 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DRIVE UNIT WITH ENGINE AND RETARDER-BRAKE | 1995 |
|
RU2128119C1 |
| DRIVE UNIT | 1995 |
|
RU2200679C2 |
| AUTOMOBILE COOLING CIRCUIT WITH PUMP AND EXHAUST BRAKE | 2004 |
|
RU2347085C2 |
| DRIVE UNIT WITH MOTOR AND RETARDER | 1995 |
|
RU2138655C1 |
| TRANSMISSION WITH APPLICATION OF SPENT GAS AND CONTROL METHOD | 2004 |
|
RU2348821C2 |
| VEHICLE DRIVE TRAIN WITH HYDRAULIC BRAKE-DECELERATOR | 2004 |
|
RU2340483C2 |
| DRIVE UNIT WITH RETARDER BRAKE | 2003 |
|
RU2314218C2 |
| METHOD TO CORRELATE TRUE CHARACTERISTIC CURVE OF HYDRODYNAMIC COMPONENT WITH PREDETERMINED PRESET CHARACTERISTIC CURVE IN FINAL ACCEPTANCE OF HYDRODYNAMIC COMPONENT | 2005 |
|
RU2377149C2 |
| DRIVE UNIT WITH RETARDER BRAKE | 2003 |
|
RU2314946C2 |
| CONTROL SYSTEM ACTING ON VEHICLE SPEED | 1994 |
|
RU2136513C1 |
