- Tytuł:
- Energy recovery system for excavators with movable counterweight
- Autorzy:
- Gawlik, A.
- Powiązania:
- https://bibliotekanauki.pl/articles/243605.pdf
- Data publikacji:
- 2013
- Wydawca:
- Instytut Techniczny Wojsk Lotniczych
- Tematy:
-
active counterweight
excavator
homothetic transformation
energy saving - Opis:
- Due to the high fuel costs are developed the different types of energy saving systems that are supposed to increase the productivity of machines per each burned liter of fuel. Paper describes the concept of an active counterweight system designed for excavators. Suggested solution includes both the kinematical structure and the hydraulic system. The hydraulic system of active counterweight is connected with the boom standard hydraulic system. The counterweight mechanism is homothetic to working mechanism of the excavator. The homothetic transformation applies to kinematical structure and positions of the centres of gravity. The homothetic transformation provides to static unloading of boom cylinder by the mated counterweight cylinder. The aim of investigations is saving energy by machines which can use potential energy of movable counterweight. The research tests are performed for selected work cycle to determine the key parameters of hydraulic system, such as: cylinders velocity, working pressure, oil flow etc. Primary test results compare power consumption for standard and modification system during the same work cycle. The level of energy recovery is promising especially at lower velocities of boom mechanism cylinder. The energy saving for higher boom cylinder velocity will be possible after reduce of pressure drop in hydraulic circuit.
- Źródło:
-
Journal of KONES; 2013, 20, 2; 113-120
1231-4005
2354-0133 - Pojawia się w:
- Journal of KONES
- Dostawca treści:
- Biblioteka Nauki
Artykuł