公开(公告)号：US20060191678A1

公开(公告)日：2006-08-31

申请号：US11342581

申请日：2006-01-31

申请人： Akihisa Sato ,  Shigeru Ibaraki ,  Masashi Kato

发明人： Akihisa Sato ,  Shigeru Ibaraki ,  Masashi Kato

IPC分类号： F01P7/00 ,  B60H1/00

CPC分类号： F01K23/101 ,  F01P3/22

摘要： An evaporator control system includes water supply amount control means for controlling at a target temperature the temperature of steam generated by heating water supplied to an evaporator with thermal energy of exhaust gas of an engine, by manipulating the amount of water supplied. The water supply amount controller determines the amount of water supplied to the evaporator based on the sum of a feedforward water supply amount calculated from an amount of change in a parameter representing a load state of the engine, a first feedback water supply amount calculated from the actual temperature of the steam generated by the evaporator, and further a second feedback water supply amount calculated from a parameter representing an internal state of the evaporator such as an internal density of the evaporator.

摘要翻译： 蒸发器控制系统包括供水量控制装置，用于通过控制供应的水量来控制在目标温度下通过对发动机排气的热能供应给蒸发器的水进行加热而产生的蒸汽的温度。 供水量控制器基于从表示发动机的负载状态的参数的变化量计算出的前馈供水量的总和，确定供给到蒸发器的水量，从第一反馈供水量 由蒸发器产生的蒸汽的实际温度，以及由表示蒸发器的内部状态的参数（例如蒸发器的内部密度）计算出的第二反馈供水量。

公开(公告)号：US20060086091A1

公开(公告)日：2006-04-27

申请号：US10521960

申请日：2003-07-22

申请人： Akihisa Sato ,  Shigeru Ibaraki

发明人： Akihisa Sato ,  Shigeru Ibaraki

IPC分类号： F01K23/06

CPC分类号： F01K13/02 ,  F01K23/065 ,  F01K23/101

摘要： A Rankine cycle system is provided in which the amount of water supplied to an evaporator (12) and the rotational speed of an expander (13) are controlled so as to make the temperature of steam at the outlet of the evaporator (12) coincide with a target steam temperature. When the amount of water supplied to the evaporator (12) is decreased stepwise, the temperature of the steam at the outlet of the evaporator (12) increases slowly and converges to a predetermined temperature. When the rotational speed of the expander (13) is decreased stepwise the steam temperature increases quickly, although the increase is temporary. It is therefore possible, by the combined use of control of the amount of water supplied to the evaporator (12) and control of the rotational speed of the expander (13), to make the steam temperature at the outlet of the evaporator (12) coincide with the target steam temperature with good responsiveness and high precision, thereby maximizing the total efficiency, which is the sum of the efficiency of the evaporator (12) and the efficiency of the expander (13). In this way, the temperature of a gas-phase working medium generated in the evaporator (12) can be controlled at a target temperature with good responsiveness and high precision.

摘要翻译： 提供了一种兰金循环系统，其中控制供应到蒸发器（12）的水量和膨胀器（13）的转速，以使蒸发器（12）出口处的蒸汽温度与蒸发器 目标蒸汽温度。 当供应到蒸发器（12）的水量逐步减小时，蒸发器（12）出口处的蒸汽温度缓慢上升并收敛到预定温度。 当膨胀机（13）的旋转速度逐步降低时，蒸汽温度快速增加，但是增加是暂时的。 因此，通过对供给蒸发器（12）的水量的控制和膨胀机（13）的转速的控制的组合，能够使蒸发器（12）的出口处的蒸汽温度成为可能， 与目标蒸汽温度一致，具有良好的响应性和高精度，从而最大化总效率，这是蒸发器（12）的效率和膨胀器（13）的效率的总和。 以这种方式，可以在蒸发器（12）中产生的气相工作介质的温度以良好的响应性和高精度控制在目标温度。

公开(公告)号：US20050050909A1

公开(公告)日：2005-03-10

申请号：US10490766

申请日：2002-09-20

申请人： Shuji Nagatani ,  Tsuyoshi Baba ,  Shigeru Ibaraki ,  Akihisa Sato ,  Susumu Maeda

发明人： Shuji Nagatani ,  Tsuyoshi Baba ,  Shigeru Ibaraki ,  Akihisa Sato ,  Susumu Maeda

IPC分类号： F01K23/06 ,  F01K23/10 ,  F01N5/02 ,  F25D17/06 ,  F25B27/00

CPC分类号： F01N5/02 ,  F01K23/065 ,  F01K23/101 ,  Y02T10/16

摘要： Evaporator temperature control means (U) that, in order to make the temperature of steam generated by heating water using exhaust gas of an engine coincide with a target temperature, controls the amount of water supplied to the evaporator based on the flow rate of the exhaust gas, the temperature of the exhaust gas, the temperature of the water, and the temperature of the steam. Calculating an exhaust gas flow rate (Gmix) based on a fuel injection quantity, an air/fuel ratio, and a rotational speed of the engine improves the precision and the responsiveness of the calculation. Controlling the amount of water supplied to the evaporator based on this exhaust gas flow rate (Gmix) therefore improves the accuracy with which the steam temperature is controlled so as to make it coincide with the target temperature.

摘要翻译： 蒸发器温度控制装置（U），为了使通过使用发动机的排气加热水而产生的蒸汽的温度与目标温度一致，基于排气的流量来控制供给蒸发器的水量 气体，废气的温度，水的温度和蒸汽的温度。 基于燃料喷射量，空燃比和发动机的转速来计算排气流量（Gmix），提高了计算的精度和响应性。 基于该排气流量（Gmix）控制供给到蒸发器的水量因此提高了控制蒸汽温度以使其与目标温度一致的精度。

公开(公告)号：US07475541B2

公开(公告)日：2009-01-13

申请号：US10820818

申请日：2004-04-09

申请人： Shigeru Ibaraki ,  Takeo Kiuchi ,  Tsuneo Endoh ,  Akihisa Sato

发明人： Shigeru Ibaraki ,  Takeo Kiuchi ,  Tsuneo Endoh ,  Akihisa Sato

IPC分类号： F01K23/10

CPC分类号： F01K23/065 ,  F01N5/02 ,  F02G5/02 ,  Y02T10/16 ,  Y02T10/166

摘要： A hybrid vehicle is equipped with an internal combustion engine, a motor/generator, and a Rankine cycle system for recovering thermal energy of exhaust gas. The output of the Rankine cycle system is input into a transmission or, alternatively, converted into electric power and used for charging a battery. The Rankine cycle system has temperature setter that sets the temperature of steam at the outlet of an evaporator. A pressure setter is provided for setting steam pressure at the inlet of an expander. A pressure controller is provided for controlling the steam pressure at the inlet of the expander. The evaporator generates steam to be supplied at a pressure that is optimum for the expansion ratio of the expander. The Rankine cycle system is operated when the vehicle is accelerating or cruising and efficiently recovers thermal energy of the exhaust gas and reduces the fuel consumption of the internal combustion engine.

摘要翻译： 混合动力汽车配备有用于回收废气热能的内燃机，电动机/发电机和兰金循环系统。 兰金循环系统的输出被输入到变速器中，或者转换为电力并用于对电池充电。 兰金循环系统具有设置蒸发器出口处蒸汽温度的温度调节器。 提供压力调节器，用于设定膨胀机入口处的蒸汽压力。 提供压力控制器来控制膨胀机入口处的蒸汽压力。 蒸发器以对膨胀机的膨胀比最佳的压力产生蒸汽。 当车辆加速或巡航并且有效地回收废气的热能并且降低内燃机的燃料消耗时，运行兰金循环系统。

公开(公告)号：US20060168963A1

公开(公告)日：2006-08-03

申请号：US11336865

申请日：2006-01-23

申请人： Akihisa Sato ,  Shigeru Ibaraki ,  Kensaku Yamamoto

发明人： Akihisa Sato ,  Shigeru Ibaraki ,  Kensaku Yamamoto

IPC分类号： F01K13/00

CPC分类号： F01K23/065

摘要： A Rankine cycle system includes: an evaporator for heating a liquid-phase working medium with thermal energy of exhaust gas of an engine so as to generate a gas-phase working medium; a displacement type expander for converting the thermal energy of the gas-phase working medium generated by the evaporator into mechanical energy; a target pressure setter for setting a target pressure for the gas-phase working medium based on actual flow rate and temperature of the gas-phase working medium supplied to the expander; an estimated flow rate calculator for calculating an estimated flow rate of the gas-phase working medium supplied to the expander based on an output and a rotational speed of the engine; and a target rotational speed calculator for calculating a target rotational speed for the expander based on the estimated flow rate calculated by the estimated flow rate calculator and the target pressure set by the target pressure setter.

摘要翻译： 兰金循环系统包括：蒸发器，用于加热具有发动机排气热能的液相工作介质，以产生气相工作介质; 用于将由蒸发器产生的气相工作介质的热能转换为机械能的位移式膨胀器; 目标压力设定器，用于根据供给到膨胀机的气相工作介质的实际流量和温度来设定气相工作介质的目标压力; 估计流量计算器，用于基于发动机的输出和转速来计算供给至膨胀机的气相工作介质的估计流量; 以及目标转速计算器，用于基于由估计流量计算器计算出的估计流量和由目标压力设定器设定的目标压力来计算膨胀机的目标转速。

公开(公告)号：US07007473B2

公开(公告)日：2006-03-07

申请号：US10490766

申请日：2002-09-20

申请人： Shuji Nagatani ,  Tsuyoshi Baba ,  Shigeru Ibaraki ,  Akihisa Sato ,  Susumu Maeda

发明人： Shuji Nagatani ,  Tsuyoshi Baba ,  Shigeru Ibaraki ,  Akihisa Sato ,  Susumu Maeda

IPC分类号： F01K23/10 ,  F01N5/02 ,  F02G3/00 ,  F02G5/02 ,  F22B1/18

CPC分类号： F01N5/02 ,  F01K23/065 ,  F01K23/101 ,  Y02T10/16

摘要： Evaporator temperature control means (U) that, in order to make the temperature of steam generated by heating water using exhaust gas of an engine coincide with a target temperature, controls the amount of water supplied to the evaporator based on the flow rate of the exhaust gas, the temperature of the exhaust gas, the temperature of the water, and the temperature of the steam. Calculating an exhaust gas flow rate (Gmix) based on a fuel injection quantity, an air/fuel ratio, and a rotational speed of the engine improves the precision and the responsiveness of the calculation. Controlling the amount of water supplied to the evaporator based on this exhaust gas flow rate (Gmix) therefore improves the accuracy with which the steam temperature is controlled so as to make it coincide with the target temperature.

摘要翻译： 蒸发器温度控制装置（U），为了使通过使用发动机的排气加热水而产生的蒸汽的温度与目标温度一致，基于排气的流量来控制供给蒸发器的水量 气体，废气的温度，水的温度和蒸汽的温度。 基于燃料喷射量，空燃比和发动机的转速来计算排气流量（Gmix），提高了计算的精度和响应性。 基于该排气流量（Gmix）控制供给到蒸发器的水量因此提高了控制蒸汽温度以使其与目标温度一致的精度。

公开(公告)号：US20060101821A1

公开(公告)日：2006-05-18

申请号：US10522063

申请日：2003-07-22

申请人： Akihisa Sato ,  Shigeru Ibaraki

发明人： Akihisa Sato ,  Shigeru Ibaraki

IPC分类号： F01K13/00

CPC分类号： F01K13/02 ,  F01K23/065 ,  F01K23/101

摘要： A Rankine cycle system is provided in which, in order to make a pressure (P) of a gas-phase working medium at the inlet of an expander (13) coincide with a target pressure (PO), a feedforward value (NFF) is calculated on the basis of the target pressure (PO) and a flow rate (Q) of the gas-phase working medium at the outlet of an evaporator (12), a feedback value (NFB) is calculated by multiplying a deviation (ΔP) of the pressure (P) of the gas-phase working medium at the inlet of the expander (13) from the target pressure (PO) by a feedback gain (kp) calculated on the basis of the flow rate (Q) of the gas-phase working medium, and the rotational speed of the expander (13) is controlled on the basis of the result of addition/subtraction of the feedforward value (NFF) and the feedback value (NFB). It is thereby possible to control the pressure of the gas-phase working medium at the inlet of the expander at the target pressure with high precision without changing the amount of liquid-phase working medium supplied to the evaporator.

摘要翻译： 提供了一种兰金循环系统，其中为了使膨胀机（13）入口处的气相工作介质的压力（P）与目标压力（P < ，基于目标压力（P SUB）和气相工作介质的流量（Q），计算前馈值（N FF）， 通过将气相加工介质的压力（P）的偏差（ΔP）乘以蒸发器（12）的出口，反馈值（N＆gt; FB＆lt; 膨胀机（13）的目标压力（P O）的反馈增益（kp），基于气相加工介质的流量（Q）计算出的反馈增益（kp） 根据前馈值（N＆lt; FF＆gt;）和反馈值（N＆gt; FB＆lt;＆lt;＆gt;）的相加/减去的结果来控制扩展器（13）。 由此，可以在不改变供给到蒸发器的液相工作介质的量的情况下，以高精度在目标压力下控制膨胀机入口处的气相加工介质的压力。

公开(公告)号：US20060201154A1

公开(公告)日：2006-09-14

申请号：US11373126

申请日：2006-03-13

申请人： Masashi Kato ,  Akihisa Sato ,  Mitsuo Kadota ,  Kensaku Yamamoto

发明人： Masashi Kato ,  Akihisa Sato ,  Mitsuo Kadota ,  Kensaku Yamamoto

IPC分类号： F01K13/00

CPC分类号： F01K23/101

摘要： A Rankine cycle system includes: an evaporator for heating water with thermal energy of exhaust gas of an engine so as to generate steam; an expander for converting the thermal energy of the steam generated by the evaporator into mechanical energy; and a distribution device for manipulating the amount of water supplied to the evaporator in order to make the temperature of the steam supplied from the evaporator to the expander coincide with a target temperature. The distribution device controls a distribution ratio between the amount of water supplied to the entrance of the evaporator and the amount of water supplied to a portion partway along the evaporator, thereby suppressing an overshoot in the temperature of the gas-phase working medium due to a sudden increase in the thermal energy of the exhaust gas.

摘要翻译： 兰金循环系统包括：蒸发器，用于对发动机的废气的热能加热水以产生蒸汽; 用于将由蒸发器产生的蒸汽的热能转换成机械能的膨胀器; 以及分配装置，用于操纵供给到蒸发器的水量，以使从蒸发器供给到膨胀器的蒸汽的温度与目标温度一致。 分配装置控制供给到蒸发器的入口的水量与供给到沿着蒸发器的中途的一部分的供水量之间的分配比，从而抑制气相工作介质的温度由于 废气热能突然增加。

公开(公告)号：US20060179841A1

公开(公告)日：2006-08-17

申请号：US11337478

申请日：2006-01-24

申请人： Akihisa Sato ,  Koji Fukutomi ,  Kensaku Yamamoto

发明人： Akihisa Sato ,  Koji Fukutomi ,  Kensaku Yamamoto

IPC分类号： F01K13/00

CPC分类号： F01K23/101

摘要： A Rankine cycle system includes: an evaporator for heating a liquid-phase working medium with thermal energy of exhaust gas of an engine so as to generate a gas-phase working medium; a displacement type expander for converting the thermal energy of the gas-phase working medium generated by the evaporator into mechanical energy; and a Rankine controller for manipulating an amount of liquid-phase working medium supplied to the evaporator so that the temperature of the gas-phase working medium supplied from the evaporator to the expander coincides with a target temperature, and for manipulating the rotational speed of the expander by changing a load of the expander so that the pressure of the gas-phase working medium supplied from the evaporator to the expander coincides with a target pressure. Simultaneously with operating conditions of the engine shifting to a fuel supply suspension state or a low load state, the Rankine controller suspends supply of the liquid-phase working medium to the evaporator, and decreases the rotational speed of the expander as quickly as possible within a range in which the pressure of the gas-phase working medium does not exceed the target pressure.

摘要翻译： 兰金循环系统包括：蒸发器，用于加热具有发动机排气热能的液相工作介质，以产生气相工作介质; 用于将由蒸发器产生的气相工作介质的热能转换为机械能的位移式膨胀器; 以及兰金控制器，用于操作供给到蒸发器的液相工作介质的量，使得从蒸发器供应到膨胀器的气相工作介质的温度与目标温度一致，并且为了操纵 通过改变膨胀机的负荷使得从蒸发器供给到膨胀机的气相工作介质的压力与目标压力一致。 在发动机转向燃料供给停止状态或低负载状态的运转条件的同时，兰金控制器暂停向蒸发器供给液相工作介质，并且在一个内部尽可能快地降低膨胀机的转速 气相工作介质的压力不超过目标压力的范围。

公开(公告)号：US20060201153A1

公开(公告)日：2006-09-14

申请号：US11370849

申请日：2006-03-09

申请人： Tadashi Kurotani ,  Akihisa Sato ,  Kazuya Takahashi ,  Yuuichi Ito

发明人： Tadashi Kurotani ,  Akihisa Sato ,  Kazuya Takahashi ,  Yuuichi Ito

IPC分类号： F02G3/00

CPC分类号： F22B1/1807 ,  F01K23/065 ,  F02G5/02 ,  Y02E20/363 ,  Y02T10/166

摘要： A Rankine cycle system includes an evaporator for heating water with thermal energy of exhaust gas of an engine so as to generate steam, an expander for converting the thermal energy of the steam generated by the evaporator into mechanical energy and a temperature controller for making the temperature of the steam supplied from the evaporator to the expander coincide with a target temperature. The temperature controller includes a water supply amount controller for manipulating the amount of water supplied to the evaporator and a water injection quantity controller for supplying water to the exhaust gas upstream of the evaporator during an expansion stroke or an exhaust stroke of the engine, when the thermal energy of exhaust gas changes suddenly accompanying a change in the load of the engine and the temperature of the steam cannot be controlled at the target temperature by supply of water to the evaporator.

摘要翻译： 兰金循环系统包括用于对发动机的排气的热能加热水以便产生蒸汽的蒸发器，用于将由蒸发器产生的蒸汽的热能转换成机械能的膨胀器和用于使温度 从蒸发器供应到膨胀器的蒸汽与目标温度一致。 温度控制器包括用于控制供应到蒸发器的水量的供水量控制器和用于在发动机的膨胀冲程或排气冲程期间向蒸发器上游的排气供水的喷水量控制器， 随着发动机负荷的变化，排气的热能急剧变化，蒸汽的温度不能通过向蒸发器供水来控制在目标温度。