THE POWER LOSSES IN SPEED ADJUSTMENT
OF HYDROSTATIC DRIVES
This paper aims to highlight how aparticular hydraulic configuration can influence power losses in a hydraulic drive scheme. From this point of view, hydraulic schemes of hydraulic linear cilinders are discussed.
Key words: design, hydraulic system, power losses, control speed
Cuvinte cheie: proiectare, sistem hidraulic, pierderi de putere, controlul vitezei
SNOW MELTING MACHINES
In the first part of the paper, is presented a new category of technological equipments used to remove the fallen snow on the public urban spaces such as parking, airport runways, public roads and private spaces. It shows the principle of operation, structure and performance of such equipments, currently called snow melter., Actually, this machines are an alternative to the classic snow removal solution by transporting it to predestined locations, usually at long distances, which offers certain advantages, especially in terms of speed of decongestion of traffic, and for the environment because the removal of snow beeing an ecological process.
Keywords: snowmobiles, mobile snowmobiles, stationary snowmobiles, urban snowmobiles, self-propelled snowmobiles, trailed snowmobiles
Cuvinte cheie: topitoare de zăpadă, topitoare mobile de zăpadă, topitoare staţionare de zăpadă, topitoare urbane de zăpadă, topitoare de zăpadă autopropulsate, topitoare de zăpadă tractate
TELESCOPIC MOBILE RAMP WITH HYDRAULIC DRIVE FOR
ACCESS INSIDE OF THE BUILDINGS
PART II – ELECTRIC AND HYDRAULIC ECQUIPMENTS
The paper presents a telescopic mobile ramp with hydraulic drive for
access on upper levels inside of the of buildings. In the paper, is shows the
structural component of equipment, the technical characteristics and, also, its
usefulness in the actions of the Romanian Gendarmerie in its missions to
ensure public order and security.
Keywords: portable ramp telescopic, mobile hydraulic, scale hydro,
hydro-mechanical equipment
Cuvinte cheie: rampă mobilă telescopică, echipament mobil, acţionare
hidraulică, scară hidraulică, echipament hidro-mecanic
TELESCOPIC MOBILE RAMP WITH HYDRAULIC DRIVE FOR
ACCESS INSIDE OF THE BUILDINGS
PART I – GENERAL CONCEPTION
The paper presents a telescopic mobile ramp with hydraulic drive for
access on upper levels inside of the of buildings. In the paper, is shows the
structural component of equipment, the technical characteristics and, also, its
usefulness in the actions of the Romanian Gendarmerie in its missions to
ensure public order and security.
Keywords: portable ramp telescopic, mobile hydraulic, scale hydro,
hydro-mechanical equipment
Cuvinte cheie: rampă mobilă telescopică, echipament mobil, acţionare
hidraulică, scară hidraulică, echipament hidro-mecanic
MOBILE EQUIPMENT WITH HYDRAULIC DRIVING FOR
BLOCKING ACCESS ROADS.
PART II – HYDRAULIC DRIVING SYSTEM
The paper presents mobile equipment with hydraulic drive for blocking of the streets with access prohibited areas. In the paper, is shows the structural component of equipment, the technical characteristics and, also, its usefulness in airside control actions of the Romanian Gendarmerie in its missions.
Keywords: lock equipment, mobile equipment, hydraulic, hydro -mechanical equipment
Cuvinte cheie: echipament de blocare, echipament mobil, acţionare hidraulică, echipament hidro-mecanic
MOBILE EQUIPMENT WITH HYDRAULIC DRIVING
FOR BLOCKING ACCESS ROADS.
PART I–GENERAL CONCEPTION
The paper presents mobile equipment with hydraulic drive for blocking of the streets with access prohibited areas. In the paper, is shows the structural component of equipment, the technical characteristics and, also, its usefulness in airside control actions of the Romanian Gendarmerie in its missions.
Keywords: lock equipment, mobile equipment, hydraulic, hydro -mechanical equipment
Cuvinte cheie: echipament de blocare, echipament mobil, acţionare hidraulică, echipament hidro-mecanic
ELEVATING PLATFORM WITH HYDRAULIC DRIVING AND ENERGY RECOVERY SYSTEM
The paper presents an experimental model for an elevating platform with hydraulic driving and energy recovery system, which aims the demonstration of possibility for recovery the potential energy from the lifting mechanisms with hydraulic driving. There are presented the designing of model, conceptual schema of the experimental model and the main components and subassemblies of the model. The experimental model was used for a experimental research, when were obtained o lot of graphical results regarding the variation of the main functional parameters of the platform, but this results will be presented in future paper. They have clearly demonstrated the possibility of potential energy recovery at elevating platforms.
Keywords: energy recovery, testing, experimental research, energy efficiency, sensors and transducers, data acquisition
HYDRAULIC LOWERING AND LIFTING EQUIPMENT WITH ENERGY RECOVERY SYSTEM
The paper presents a demonstrative model of Hydraulic lowering and lifting equipment with which aims the demonstration of possibility for potential energy recovery from the lifting mechanisms with hydraulic driving. There are presented the conceptual schema of the model, the main components and subassemblies. The experimental model was used for a experimental research, when were obtained o lot of graphical results regarding the variation of the main functional parameters of the platform, but this results will be presented in future paper. They have clearly demonstrated the possibility of potential energy recovery at elevating equipment.
Keywords: energy recovery, testing, experimental research, energy efficiency, sensors and transducers, data acquisition
DEMONSTRATION STAND FOR ROTATIONAL KINETIC
ENERGY RECOVERY FROM THE ROTATING MECHANISMS
WITH HYDRAULIC DRIVING
The paper presents a demonstrative stand which aims the
demonstration of possibility for rotational kinetic energy recovery from the
rotating mechanisms with hydraulic driving. There are presented the conceptual
schema of the stand, the main components of the stand and, finally, there are
presented some experimental results, which contain the graphical variation of
the main dynamic parameters, which can demonstrate the possibility to
recovery of the rotational kinetic energy from the rotating Mechanisms with
hydraulic driving from the technological equipments.
Cuvinte cheie: recuperarea energiei, stand de testare, cercetare
experimentală, eficienţă energetică, senzori şi traductoare, achiziţie date
Keywords: energy recovery, testing, experimental research, energy
efficiency, sensors and transducers, data acquisition