摘要:
A hydrodynamic component with at least two rotating impellers which form a working chamber for a working circuit. A closed circuit coupled to the inlet to the working chamber and to the outlet from the working chamber. The closed circuit is pressure tight. Pressure control for the closed circuit.
摘要:
A hydrodynamic component (1) comprising: two rotating blade wheels: a primary blade wheel (3) and a secondary blade wheel (4), which together form at least one torus-shaped working chamber (5Z); at least inlet (10) for service fluid leading into the torus-shaped working chamber, the inlet being located in the vicinity of the lowest static pressure; at least one outlet (24) leading out of the torus-shaped working chamber; a working fluid circulation (22) which is set up in the torus-shaped working chamber during operation; a closed circuit (21) allocated to the working chamber and an external section (23) of the closed circuit, said section being located between the outlet and the inlet.
摘要:
The invention involves a process for controlling the rotational speed of a drive motor during a start-up period, in a drive train, containing at least one starter element that can be coupled to the drive motor, in a rotationally fixed manner, in the form of a hydrodynamic coupling, containing a primary blade wheel and a secondary blade wheel, which form together at least one toroid-shaped working space. According to the invention, the rotational speed of the drive motor is set as a function of the power that can be consumed by the hydrodynamic coupling. The consumable power can be controlled or regulated.
摘要:
A method for controlling the power consumption of a starting element (1) in the form of a hydrodynamic clutch (2). The clutch comprises an impeller (4) and a turbine wheel (5), which together form at least one toroidal working chamber (6) that can be filled with an operating medium, and is located in a drive train (3) with at least one other drive motor that can be coupled to the hydrodynamic clutch. The method is characterized in that the power consumption can be freely adjusted as a function of the volumetric efficiency of the hydrodynamic clutch and the method has the following characteristics: the supply or evacuation of the operating medium to or from the working chamber is influenced by the generation and introduction of a static superposition pressure in the closed rotating circuit; the operating medium is supplied or evacuated to or from the working chamber by the application of a superposition or influencing pressure to the operating medium level in the operating medium reservoir (40).
摘要:
The invention relates to a drivetrain, in particular a motor vehicle drivetrain, comprising: an engine; a gearbox comprising a main output and at least one auxiliary output; a hydrodynamic machine disposed at the auxiliary output on the gearbox output side; the hydrodynamic machine comprises a housing, stator vanes, and a rotor blade wheel; the rotor blade wheel can be driven by an input shaft; the input shaft is the output shaft of the auxiliary output or a shaft coaxially connected thereto. The drivetrain, in particular motor vehicle drivetrain, according to the invention is characterized by the following features: the housing of the hydrodynamic machine is designed in at least two parts, comprising a first housing part comprising the rotor blade wheel and the input shaft and mounted on the gearbox or integral to the same, a second housing part comprising the stator vanes and connection channels for feeding/discharging the working medium, wherein the second housing part is supported by the first housing part and is rotatably mounted on the first housing part or can be mounted on the first housing part at various rotated positions relative to the first housing part.
摘要:
A hydrodynamic retarder having a toroidal working chamber formed from a rotor impeller and a stator impeller. The stator impeller has a stator housing with a substantially ring-shaped evacuation channel formed in the stator housing. The stator impeller has a plurality of boreholes, which join the toroidal working chamber to the evacuation channel.
摘要:
A hydrodynamic retarder is provided having a rotor blade wheel, which has a number (ZR) of blades, and a stator blade wheel, which has a number (ZS) of blades. The rotor blade wheel and the stator blade wheel together form a toroidal working chamber in which torque is transmitted from the rotor blade wheel to the stator blade wheel by means of a working medium. The blades have a profile with an inner diameter (DI) and an outer diameter (DA). The mean number of the blades (Zm), which results from half of the sum of the number of rotor blades (ZR) and the number of stator blades (ZS) multiplied by the profile shift factor (f v) is fixed, depending on the working medium.
摘要翻译:提供了一种流体动力学延迟器,其具有转子叶轮,该转子叶轮具有多个(Z SUB R)叶片,定子叶片轮具有数量(Z) 的刀片。 转子叶轮和定子叶轮一起形成一个环形工作室,其中扭矩通过工作介质从转子叶轮传递到定子叶轮。 叶片具有内径(D SUB)和外径(D SUB A)的轮廓。 由叶片数(Z SUB)和转子叶片数Z(Z Z)之和的一半构成的叶片平均数(Z SUB) 取决于工作介质,乘以轮廓位移系数(f )是固定的。
摘要:
The invention relates to a drive unit of a motor vehicle provided with a cooling circuit, said drive unit comprising a hydrodynamic retarder having a rotor vane wheel and a stator vane wheel, the hydrodynamic retarder being arranged in the vehicle cooling circuit and the working medium of the retarder being the vehicle cooling medium. The inventive drive unit is characterized in that means for removing a pre-determined quantity of working medium from the cooling circuit during the changeover from braking mode to non-braking mode, and for supplying a pre-determined quantity of working medium into the cooling circuit during the changeover from non-braking mode to braking mode, are connected to the cooling circuit.
摘要:
A method for control of a pressurized air supply system for a motor vehicle. In a supply condition, the air compressor is driven by the drive motor and connected to a compressed air system of the motor vehicle such that compressed air is supplied to the compressed air system. In a non-supply condition, the compressor is not driven and/or connected to the compressed air system. The switching of the supply or non-supply condition results from a comparison of at least one switch pressure value with a pressure in the compressed air system and the topography of the stretch of road on which the vehicle is travelling, which includes the profile of the path which the vehicle must cover within a period of time and/or path distance to a given destination.
摘要:
A coolant circuit of a motor vehicle, including the following features: a coolant, especially water or a water mixture; a coolant pump having a coolant outlet; a retarder provided with a central ring, the working medium thereof being the coolant; a reversing valve in the flow direction upstream of the retarder and a bypass section for bypassing the retarder, such that the retarder can be connected to and disconnected from the coolant circuit. According to the invention, the coolant pump is arranged in the flow direction upstream of the retarder in such a way that it pumps coolant into the retarder when the retarder is connected, and pumps coolant past the retarder via the bypass section when the retarder is disconnected.