公开(公告)号：WO2014174285A2

公开(公告)日：2014-10-30

申请号：PCT/GB2014/051264

申请日：2014-04-23

Applicant: CONTROLLED POWER TECHNOLOGIES LTD

Inventor： HAUGHTON, Andrew ,  DICKINSON, Andrew ,  QUINN, Richard ,  PEARCE, David ,  WIJETUNGE, Roshan

IPC: F01K23/06

CPC classification number: F02D29/06 ,  F01N3/2892 ,  F01N5/04 ,  F01N2410/00 ,  F02B37/00 ,  F02B41/10 ,  H02P9/04 ,  Y02T10/16 ,  Y02T10/163

Abstract: A turbo-generator system generates electricity from the exhaust gas of an internal combustion engine (1). The electric current generated by the generator (11) (e.g. a switched reluctance machine) is controlled so as to maintain the turbine (3) at a first pre-set rotational speed. The amount of electric current demanded from the generator (11) is limited or reduced if the electrical system (17) cannot accept a greater electric current or if the exhaust gas pressure upstream of the turbine (3) is too great. In such cases, the proportion of the exhaust gas permitted to bypass the turbine (3) is controlled so as to maintain the turbine (3) at a second pre-set rotational speed that is slightly greater than the first. The turbine's preset speeds are chosen to maximise electrical generating efficiency and for turbine safety. The system maximises the amount of electricity generated, avoids excessive exhaust gas back-pressure on the engine (1), and avoids overloading the electrical system

Abstract translation: 涡轮发电机系统从内燃机（1）的废气产生电力。 控制由发电机（11）产生的电流（例如开关磁阻电机），以将涡轮机（3）保持在第一预设转速。 如果电气系统（17）不能接受更大的电流或者涡轮（3）上游的排气压力太大，则发电机（11）所需的电流量被限制或减小。 在这种情况下，允许绕过涡轮机（3）的废气的比例被控制，以将涡轮机（3）保持在稍大于第一预定转速的第二预设转速。 选择涡轮机的预设速度以最大化发电效率和涡轮安全。 该系统使发电量最大化，避免发动机（1）上的过多废气背压，并避免电气系统过载