Patent ID: 7614474
Filing Date: 2009-11-10
Classification: B60K,Y02T

Abstract:
1. An apparatus for converting energy in a wheeled vehicle comprising: a wheel rim; a tire; and a plurality of hydraulic plunger cylinders alternatively distributed on periphery of the wheel rim; wherein, the wheel rim comprises a plurality of peripheral annular cylinder blocks, a rotary shaft sleeve, and a closed annular hydraulic fluid reservoir disposed therebetween; a central axis of the rotary shaft sleeve operates as a wheel shaft, the rotary shaft sleeve operates as a central shaft sleeve of the wheel rim, a central shaft circulation channel is disposed on the central axis; the central shaft circulation channel comprises a hydraulic fluid-outlet channel and a hydraulic fluid-return channel, a hydraulic fluid-inlet port and a hydraulic fluid-outlet port are disposed on the rotary shaft sleeve, the hydraulic fluid-inlet port of the rotary shaft sleeve is connected to the hydraulic fluid-outlet channel of the central shaft circulation channel, the hydraulic fluid-outlet port of the rotary shaft sleeve is connected to the hydraulic fluid-return channel of the central shaft circulation channel; a hydraulic motor is disposed between the hydraulic fluid-outlet channel and the hydraulic fluid-return channel; a hydraulic fluid-outlet port of each of the hydraulic plunger cylinders is connected to the hydraulic fluid-inlet port of the rotary shaft sleeve, and the hydraulic fluid-outlet port of the rotary shaft sleeve and the hydraulic fluid-inlet port of each of the hydraulic plunger cylinders are connected to the closed annular hydraulic fluid reservoir.