公开(公告)号：US06725662B2

公开(公告)日：2004-04-27

申请号：US10149065

申请日：2002-11-14

申请人： Tsuyoshi Baba ,  Hiroyuki Niikura ,  Yasunobu Kawakami ,  Hiroyuki Horimura ,  Tsuneo Endoh

发明人： Tsuyoshi Baba ,  Hiroyuki Niikura ,  Yasunobu Kawakami ,  Hiroyuki Horimura ,  Tsuneo Endoh

IPC分类号： F02G300

CPC分类号： F02B41/10 ,  F01K23/065 ,  F02G5/04 ,  F25B27/02 ,  Y02A30/274 ,  Y02T10/163 ,  Y02T10/166 ,  Y10T477/23

摘要： In a drive system, there is provided a waste heat recovering device forming a Rankine cycle by an evaporator for heating water with waste heat of an internal combustion engine to generate high-pressure vapor, the internal combustion engine being connected to a transmission, a displacement-type expander for converting high-pressure vapor generated by the evaporator to an output with constant torque, a condenser for liquefying low-pressure vapor discharged from the expander, and a feed pump for supplying water liquefied by the condenser to the evaporator. The expander is connected to a power generator/motor via a planetary gear mechanism, and the expander is connected to an output shaft of the internal combustion engine via the planetary gear mechanism and a belt-type continuously variable transmission. A change gear ratio of the belt-type continuously variable transmission is controlled such that a rotational speed of the internal combustion engine and a rotational speed of the expander are matched with each other and are transmitted to the transmission. Hence, it is possible to effectively drive the driven portion by using the output of the expander of the waste heat recovering device.

摘要翻译： 在驱动系统中，提供了一种通过蒸发器形成兰金循环的废热回收装置，用于对内燃机的废热进行加热的水，以产生高压蒸汽，内燃机连接到变速器，排量 型膨胀器，用于将由蒸发器产生的高压蒸气转换成具有恒定转矩的输出，用于液化从膨胀器排出的低压蒸汽的冷凝器，以及用于将由冷凝器液化的水供应到蒸发器的进料泵。 膨胀机通过行星齿轮机构与发电机/电动机连接，膨胀机通过行星齿轮机构和带式无级变速器与内燃机的输出轴连接。 控制带式无级变速器的变速比，使得内燃机的转速和膨胀机的转速相互匹配，并传递给变速器。 因此，可以通过使用废热回收装置的膨胀机的输出来有效地驱动从动部。