Hydraulic retarder for small and medium-sized vehicles and auxiliary speed decreasing system

• Main Author: HAN SAI
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2018
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL; WEAPONS

The invention discloses a hydraulic retarder for small and medium-sized vehicles. The hydraulic retarder for the small and medium-sized vehicles comprises a stator and a rotor; a stator cavity is formed in the stator; the inner side wall of the stator cavity is provided with at least two work oil grooves; work oil cavities are defined by the outer side wall of the rotor and the work oil grooves; each work oil cavity is sequentially divided into a low pressure area and a high pressure area in the rotating direction of the rotor; oil liquid is arranged in the work oil cavities; the oil liquid isadsorbed to the outer side wall of the rotor by being close to the surface layer of the rotor; the rotor drives the oil liquid in the work oil cavities to flow in the circumferential direction of therotor so that the pressure of oil liquid in the high pressure areas can be larger than that of oil liquid in the low pressure areas; the stator is provided with oil supplying channels communicating with the low pressure areas