Abstract:
The SIVRT disclosed includes a unique, ordered geartrain; it allows a large-continuous range of input: output velocity ratios (forward or reverse). This range is controlled by fluid-coupled gearsets which direct the power flow to the output shaft. The SIVRT requires no torque converter or friction clutches and has been designed for fully-loaded work machines which must operate reliably at creep speeds for extended periods with 1-3 stop-reverse-stop-forward operations every minute of the workshift. The "clutchless" variformer system disclosed herein provides a robust, heavy-duty, continuously-variable mechanical transmission especially designed and scaled for applications in vehicles and working machines which operate at creep speeds with frequently "stop-start-reverse" activity.
Abstract:
A cooling system for a motor vehicle comprising a cooling circuit (2) for the cooling of a combustion engine (3) and a hydrodynamic retarder (4) by means of a cooling fluid that flows around the cooling circuit. The retarder (4) is designed to use cooling fluid that flows around the cooling circuit as retarding medium. A cooling fluid cooler (6) for cooling of the cooling fluid is connected into the cooling circuit. A thermostat arrangement comprises a first thermostat device (16) arranged to regulate the flow of cooling fluid to the cooling fluid cooler and to a line (14) past this, depending on the temperature of the cooling fluid that is led into this thermostat device through a pilot line (17). A second thermostat device (18) is arranged to regulate the flow of cooling fluid to the cooling fluid cooler (6) and to a line past this, depending on the temperature of cooling fluid that arrives at it from the retarder. The second thermostat device is designed to open for flow to the cooling fluid cooler at a second temperature that is at least 5 K higher than a first temperature at or above which the first thermostat device opens for a corresponding flow.
Abstract:
A gear damper has a fixed first part and a second part rotatable relative thereto, with a gear formed on the second part. A continuous annular seal is provided between the first and second parts, and a substantially continuous layer of damping fluid is provided between the first and second parts.
Abstract:
Die Erfindung betrifft eine hydrodynamische Maschine, insbesondere hydrodynamischen Retarder (1), umfassend ein Retardergehäuse (2), einen Rotor (16) und einen Stator (17), wobei Rotor (16) und Stator (17) miteinander einen Arbeitsraum (24) ausbilden, der entsprechend des Betriebszustandes der Maschine mit einem Arbeitsmedium (15) befüllbar ist, wobei der Rotor (16) auf einer drehbar gelagerten Welle (3) angeordnet ist, die zumindest einseitig innerhalb des Retardergehauses (2) mittels einem Lager (18) gelagert ist, umfassend weiterhin eine Leerlaufpumpe (25), mittels der das Arbeitsmedium (15) durch einen Verbindungskanal (19) von einem Arbeitsmediumspeicher (23) in den Arbeitsraum (24) gepumpt werden kann. Zur Verbesserung der Betriebssicherheit im Nicht-Bremsbetrieb wird vorgeschlagen, dass der Verbindungskanal zumindest zum Teil durch das Lager (18) gebildet wird, sodass das Lager (18) von dem von der Leerlaufpumpe (25) geförderten Arbeitsmedium (15) zumindest teilweise gekühlt und/oder geschmiert wird.
Abstract:
Means for stopping a flywheel type electric power storage apparatus when power service is interrupted, including a thrust plate (11) connected to a rotary section and formed with a thrust bearing surface, and a pressure bearing surface (26) formed with a thrust bearing surface confronting the lower surface of the thrust plate (11). A plurality of grooves (27) are radially formed on an oblique land (28) slanting upwards toward the direction of rotation on the side wall in the direction of rotation of the rotary section on the pressure bearing surface (26). Cooling fluid flow holes (33) for flowing cooling fluid through a solenoid valve (35) opened simultaneously with the interruption of power source are buried under the pressure bearing surface (26). Further, means for holding oil on the thrust bearing surface when power service is interrupted is provided there. Thus, it allows high reliability in stopping operation of the means even when power service is interrupted.
Abstract:
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Abbremsen einer rotierenden Schwungmasse (M), insbesondere für eine Einrichtung mit einem rotierenden Schwungmassenspeicher oder einer drehenden Maschine oder einem Antrieb mit hoher Drehzahl, wobei die Schwungmasse in einem im Regelbetrieb im Wesentlichen evakuierten Gehäuse (GH) angeordnet ist, und wobei zum Abbremsen der Schwungmasse, insbesondere für eine Abbremsung in einem Störfall, das Innere des Gehäuses mit einem Gas beaufschlagt wird. Dabei ist vorgesehen, dass zur Erzeugung des Gases ein pyrotechnischer Gasgenerator (GG) mit einer pyrotechnischen Treibladung (T) (auch Treibsatz oder Zündkapsel genannt) verwendet wird. Durch den Einsatz eines pyrotechnischen Gasgenerators kann einfach, zuverlässig und ökonomisch und mit einer hohen Reaktionsgeschwindigkeit die zum Abbremsen der Schwungmasse erforderliche Gasatmosphäre in dem Gehäuse mit dem Schwungmassenspeicher erzeugt werden. Darüber hinaus benötigt die pyrotechnische Treibladung im Regelbetrieb keine oder nur wenig Energie und ist nahezu wartungsfrei.
Abstract:
The present invention relates to a brake device in a vehicle (1) provided with a power train with a gearbox (2), an input shaft (3) to the gearbox and an output shaft (14) from the gearbox. The brake device comprises a retarder (17), a first connecting mechanism (18-21) by which the retarder (17) is connectable to the gearbox output shaft (14), a second connecting mechanism (18-24, 30) by which the retarder (17) is connectable to a component (4, 15) in the gearbox which is directly or indirectly connected movably to the gearbox input shaft (3) and the gearbox output shaft. Said component (4, 15) rotates faster than the gearbox output shaft (14) at times when at least one lowest gear is engaged in the gearbox (2).
Abstract:
The invention relates to a system and a method for aerodynamically retarding a vehicle (10) moving in a terrain (90), particularly a commercial vehicle, wherein a drag resistance of the vehicle (10) is temporarily increased. The cabin (22) and/or the chassis (24, 34) of the vehicle (10) is raised for increasing the drag resistance depending on one or more operating parameters of the vehicle (10).
Abstract:
A gear damper has a fixed first part (12) and a second part (14) rotatable relative thereto, with a gear (44) formed on the second part (14). A continuous annular seal (52, 64) is provided between the first and second parts, and a substantially continuous layer of damping fluid is provided between the first and second parts.