The invention provides a pump type hydraulic resistance retarder. The pump type hydraulic resistance retarder mainly solves the technical problems that an existing retarder is large in weight and size, small in continuous power, lagging in starting and poor in low-rotating-speed braking effect. The retarder comprises a pump and a pressure regulating device. 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, an inner cavity with a single-end outlet is formed in the main rotor in the axial direction, and first liquid outlet holes are formed between the inner cavity and the N pump cavities respectively; the inner cavity is communicated with the pressure regulating device; a liquid outlet channel is arranged on the pressure regulating device; the liquid inlet channel, the pump cavity, the first liquid outlet hole, the inner cavity and the liquid outlet channel form a liquid channel. An embedded pressure regulating device can be adopted, an external pressure regulating device can also be adopted, and the application range is wider.
本发明提供了一种泵式液阻缓速器,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。该缓速器包括泵和调压装置,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,主转子内部沿轴向设有单端出口的内腔,内腔和N个泵腔之间分别设置有第一出液孔;内腔与调压装置相连通;调压装置上设有出液通道;进液通道、泵腔、第一出液孔、内腔及出液通道构成液体通道。本发明可采用嵌入式的调压装置,也可采用外接式的调压装置,适用范围更广。
Pump type hydraulic resistance retarder
一种泵式液阻缓速器
2022-12-30
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
Hydraulic resistance pump type retarder for commercial vehicle
European Patent Office | 2022
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