| Patent Number |
Title Of Patent |
Date Issued |
| 7188712 |
Hydrodynamic brakes |
March 13, 2007 |
| A retarder having the following features: a rotor (1) and a stator (2) that, together, form a working space (3); a hollow shaft (4) for connecting, in a rotationally fixed manner, an input shaft (5), which is near a transmission, to an output shaft (6), which is near a cardan shaft, |
| 7100370 |
Method for regulating the speed of a drive motor |
September 5, 2006 |
| 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, c |
| 6928810 |
Hydrodynamic component |
August 16, 2005 |
| 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 inle |
| 6913437 |
Hydrodynamic component |
July 5, 2005 |
| 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 |
| 6910330 |
Method for controlling the power consumption of a hydrodynamic clutch by controlling the volumet |
June 28, 2005 |
| 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 |
| 6601925 |
Method for retarder control and control apparatus for the same |
August 5, 2003 |
| A method for filing a retarder with an operating fluid through a valve connected to a fluid reservoir having air pressure P.sub.v and conveying an operating fluid with an actuating pressure P.sub.y in the retarder. The method comprises: after starting the retarder during a first time int |
| 6561324 |
Drive unit including a motor and a retarder |
May 13, 2003 |
| A drive unit includes a motor, a hydrodynamic retarder, at least one pump, at least one feed line for feeding operating medium to the retarder, and at least one bypass line which conveys operating medium past the retarder. A device for directing the flow of operating medium is arranged u |
| 6546899 |
Method and device for increasing the use of the braking moment of a retarder in an automobile |
April 15, 2003 |
| The invention relates to a method and a device for increasing the use of the braking moment of a retarder in an automobile. According to this method, the heat produced by the retarder during braking is dissipated using a coolant. The method is characterized in that at least one auxil |
| 6234285 |
Retarder |
May 22, 2001 |
| A retarder with retarder housing for receiving a retarder unit comprising a stator and a rotor fitted on the retarder shaft. The retarder is intended for assembly in a transmission housing. The retarder housing features a cup-shaped recess matching in its design the outer contours of rot |
| 6223718 |
Drive unit with an engine and a retarder |
May 1, 2001 |
| A drive unit includes a hydrodynamic retarder having a rotor paddle wheel, a stator paddle wheel, and a housing surrounding the rotor and stator wheels. The unit includes a coolant cycle system for an internal combustion engine, the coolant for this coolant cycle also being a working |
| 5996762 |
Drive unit with engine transmission and coolant circuit |
December 7, 1999 |
| A drive unit having an engine comprising at least one engine output shaft, a transmission following the engine and a coolant circuit with at least one water pump. The water pump is arranged behind the engine viewed in the direction of force flow. The drive unit may also include a hydrody |
| 5944160 |
Drive unit with a hydrodynamic retarder and transmission |
August 31, 1999 |
| A drive unit for a motor vehicle having an engine; a transmission featuring a transmission housing; and a retarder featuring a rotor and a stator. A retarder shaft is provided that is supported by two bearings which are offset along the axial length of the retarder shaft. At least one of |
| 5924337 |
Drive unit with a hydrodynamic retarder and transmission |
July 20, 1999 |
| A drive unit for a vehicle which includes an engine, transmission and hydrodynamic retarder having a rotor and a stator. A retarder shaft is rotatably supported by two bearings and extends through the housing of the transmission. A sealing element provides a seal between the retarder sha |
| 5873342 |
Drive unit with internal combustion engine and hydrodynamic retarder |
February 23, 1999 |
| A drive unit for a motor vehicle including an internal combustion engine, a transmission and a hydrodynamic retarder. The retarder includes both a rotor and a stator wherein the rotor is mounted on the engine crankshaft or crankshaft journal and the stator is disposed between the crankca |
| 5829562 |
Drive unit |
November 3, 1998 |
| The invention relates to a drive unit for a motor vehicle having a hydrodynamic retarder and a drive train with an engine and a transmission. The hydrodynamic retarder is comprised of a rotor impeller wheel and a stator impeller wheel and is coordinated with the main drive train in a |
| 5819697 |
Drive unit with internal combustion engine and hydrodynamic retarder |
October 13, 1998 |
| The present invention involves a drive unit, specifically a drive unit for a motor vehicle having an internal combustion engine, a cooling system with fan and a hydrodynamic retarder with a stator, rotor and housing. The retarder is located within a space bounded on one side by the front |
| 5794588 |
Drive unit with an engine and a retarder |
August 18, 1998 |
| A drive unit includes a hydrodynamic retarder having a rotor paddle wheel, a stator paddle wheel, and a housing surrounding the rotor and stator wheels. The unit includes a coolant cycle system for an internal combustion engine, the coolant for this coolant cycle also being a working |
| 5779008 |
Drive unit with engine and retarder |
July 14, 1998 |
| A drive unit comprising an engine, a transmission, a hydrodynamic retarder comprised of a rotor impeller wheel, a stator impeller wheel and a retarder housing enclosing both. A coolant circuit having coolant also serves as a working fluid of the retarder, and a pump impeller wheel is |
| 5762582 |
Drive unit with internal combustion engine and hydrodynamic retarder |
June 9, 1998 |
| A drive unit, notably for a motor vehicle with an internal combustion engine and a transmission. The drive unit has two hydrodynamic retarders, each featuring a rotor and a stator. A primary retarder precedes the transmission in the power train and a secondary retarder follows the tr |
| 5758619 |
Drive unit with internal combustion engine and hydrodynamic retarder |
June 2, 1998 |
| The present invention involves a drive unit, specifically a drive unit for a motor vehicle having an internal combustion engine, a cooling system with fan, a transmission and a hydrodynamic retarder with a stator, rotor and housing. The retarder rotor is mounted on either the engine shaf |
| 5743232 |
Drive unit with an engine and a retarder |
April 28, 1998 |
| A drive unit includes a hydrodynamic retarder having a rotor paddle wheel, a stator paddle wheel, and a housing surrounding the rotor and stator wheels. The unit has a coolant cycle system, through which a coolant flows, the coolant also being a working medium of the retarder. The drive |
| 5657838 |
Drive unit and method for operating a drive unit |
August 19, 1997 |
| A drive unit for vehicles with an engine and a gearbox, and with a hydrodynamic retarder. The retarder is in constant drive connection with the engine. The unit includes a coolant circuit whose coolant is at the same time the working medium of the retarder, and the retarder can be ut |
| 5657723 |
Drive unit with internal combustion engine and hydrodynamic retarder |
August 19, 1997 |
| The present invention involves a drive unit, specifically a drive unit for a motor vehicle having an internal combustion engine, a cooling system with fan and a hydrodynamic retarder with a stator, rotor and housing. The retarder is located within a space bounded on one side by the front |
| 5651432 |
Hydrodynamic brake |
July 29, 1997 |
| A hydrodynamic brake includes a housing adapted to be filled with a working fluid and to discharge the fluid, a rotor having a plurality of blades, and a stator having a plurality of blades. The number of rotor blades is about 1.2 times to about 1.5 times greater than the number of stato |
| 5613472 |
Drive unit with internal combustion engine and hydrodynamic retarder |
March 25, 1997 |
| The present invention involves a drive unit, specifically a drive unit for a motor vehicle having an internal combustion engine, a cooling system with fan, a crankshaft and a hydrodynamic retarder with a stator, rotor and housing. The retarder is located within a space bounded on one sid |
| 5261513 |
Hydrodynamic retarder |
November 16, 1993 |
| A hydrodynamic retarder for a vehicle has a primary part and a secondary part. The primary part has an input end connectable to the transmission output shaft of the vehicle and an output end connectable to the axle drive shaft. The fixed secondary part is, relative to the primary part, |
| 5193654 |
Hydrodynamic retarder with shiftable stator blade wheel |
March 16, 1993 |
| The invention concerns a hydrodynamic retarder, the stator blade wheel of which can be brought into eccentric, nonaligned positions with respect to the rotor blade wheel. Either by formation of a blade free circumferential region in the blading of the stator blade wheel together with a |
| 5090523 |
Hydrodynamic retarder |
February 25, 1992 |
| The invention concerns a hydrodynamic retarder with a cooling circuit for the working fluid, which cooling circuit is divided into two partial flows of different cross sectional areas, between the outlet and inlet to the retarder, wherein both partial flows are separately cooled in a com |
| 4921079 |
Hydrodynamic retarder |
May 1, 1990 |
| A hydrodynamic retarder with a stator blade wheel and a rotor blade wheel whose blades together fill the work chamber for working liquid. Slot shaped inlet openings permit entrance of working liquid to the working chamber. The inlet openings are located at the radially inner region of |
| 4474270 |
Adjustable hydrodynamic brake |
October 2, 1984 |
| In a hydrodynamic brake, forming an energy converting mechanism and used for example in connection with heat-exchangers in the utilization of wind-power installations, the torque characteristic of the hydrodynamic brake is adapted to suit the torque characteristic of the power source by |
| 4432442 |
Hydrodynamic torque-transfer unit, especially a hydrodynamic brake |
February 21, 1984 |
| The disclosure concerns a hydrodynamic torque transfer unit, especially in the form of a hydrodynamic brake. The unit includes a working chamber with a stator and a rotor therein. The rotor is supported on a rotating shaft which has seals thereon outside the working chamber. Working flui |
| 4095680 |
Combined dynamic and mechanical braking system for automotive vehicles |
June 20, 1978 |
| A braking system for automotive vehicles wherein a hydrodynamic brake normally furnishes the required braking torque in all effective positions of the brake pedal but its braking action can be supplemented or replaced by the braking force which is furnished by one or more fluid-operated |
