The invention provides a hydraulic resistance pump type retarder for a commercial vehicle. The hydraulic resistance pump type retarder mainly solves the technical problems that an existing retarder is large in weight and size, small in continuous power, lagged in starting and poor in low-rotating-speed braking effect. The retarder comprises a pump, a first inner cavity and a second inner cavity with single-end outlets are formed in the two axial ends of the pump respectively, and a pressure regulating valve extends into the first inner cavity, is connected with the pump and is used for regulating the pressure of liquid in the pump; the clutch device extends into the second inner cavity, is connected with the pump and is used for realizing power transmission; the pump comprises a pump shell, a main rotor and N auxiliary rotors located on the periphery of the main rotor. N liquid inlet channels are arranged on the pump shell; n blades are arranged on the main rotor and divide a cavity among the main rotor, the auxiliary rotor and the pump shell into N pump cavities, and first liquid outlet holes are formed between the first inner cavity and the N pump cavities correspondingly; a liquid outlet channel is arranged on the pressure regulating valve; the liquid inlet channel, the pump cavity, the first liquid outlet hole, the first inner cavity and the liquid outlet channel form a liquid channel.
本发明提供了一种商用车液阻泵式缓速器,主要解决现有缓速器重量、体积较大,持续功率较小,起动滞后及低转速制动效果差的技术问题。该缓速器包括泵,泵轴向两端分别设有单端出口的第一内腔和第二内腔,调压阀伸入第一内腔内与泵连接,用于对泵内液体的压力进行调节;离合装置伸入第二内腔内与泵连接,用于实现动力的传递;泵包括泵壳体、主转子以及位于主转子外周的N个副转子;泵壳体上设有N个进液通道;主转子上设有N个叶片,N个叶片将主转子、副转子及泵壳体之间的空腔分割成N个泵腔,第一内腔和N个泵腔之间分别设置有第一出液孔;调压阀上设有出液通道;进液通道、泵腔、第一出液孔、第一内腔及出液通道构成液体通道。
Hydraulic resistance pump type retarder for commercial vehicle
一种商用车液阻泵式缓速器
2022-12-23
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
Control method of hydraulic retarder system, hydraulic retarder system and vehicle
European Patent Office | 2023
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