公开(公告)号：US20070215396A1

公开(公告)日：2007-09-20

申请号：US11378721

申请日：2006-03-17

Applicant: Rodney Rask ,  Sherif El Tahry ,  Paul Najt

Inventor： Rodney Rask ,  Sherif El Tahry ,  Paul Najt

IPC: B60L8/00

CPC classification number: B60L11/1887 ,  B60L1/003 ,  B60L11/002 ,  B60L11/14 ,  B60L11/1892 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/92 ,  Y02T90/16 ,  Y02T90/34

Abstract: A power system includes a device configured to store pressurized fuel. An air motor having an air motor output member is in fluid communication with the storage device, and is configured to transfer the mechanical energy of the fuel to the air motor output member. A chemical energy conversion system is in fluid communication with the air motor to receive fuel therefrom. The chemical energy conversion system is configured to convert the chemical energy of the fuel to another form of energy, such as mechanical energy or electrical energy. The power system of the invention recovers at least some of the energy expended in compressing fuel in the storage device

Abstract translation: 电力系统包括被配置为存储加压燃料的装置。 具有空气马达输出部件的空气马达与储存装置成流体连通，构成为将燃料的机械能传递到空气马达输出部件。 化学能转换系统与空气马达流体连通以从其接收燃料。 化学能转换系统被配置成将燃料的化学能转化成另一形式的能量，例如机械能或电能。 本发明的电力系统恢复在压缩存储装置中的燃料中消耗的至少一些能量

公开(公告)号：US20070107692A1

公开(公告)日：2007-05-17

申请号：US11398776

申请日：2006-04-06

Applicant: Tang-Wei Kuo ,  Paul Najt ,  James Eng ,  Rodney Rask

Inventor： Tang-Wei Kuo ,  Paul Najt ,  James Eng ,  Rodney Rask

IPC: F02B5/00 ,  F02M7/00

CPC classification number: F02D41/3035 ,  F02B1/12 ,  F02B23/0672 ,  F02D13/0234 ,  F02D35/02 ,  F02D35/028 ,  F02D41/005 ,  F02D41/1467 ,  F02D2041/001 ,  Y02T10/125 ,  Y02T10/128 ,  Y02T10/18

Abstract: A method and apparatus for controlling engine operation to compensate for effects of combustion chamber deposits (CCDs) on combustion in a controlled auto-ignition engine is presented. Control methodologies comprise operation of variable valve actuation, fuel injection, spark timing, and intake air and coolant temperature to dynamically compensate for the effect of CCDs. A sensitivity to core gas temperature and chamber wall thermal conditions is shown, which is correlatable to in-cylinder CCD formation. Intake charge or coolant temperature control can be used to compensate for CCD effects. An engine control scheme relies upon a parametric input that quantifies instantaneous CCD formation in the combustion chamber. The result is further applicable to control pre-ignition in a conventional spark-ignition engine.

公开(公告)号：US20070084449A1

公开(公告)日：2007-04-19

申请号：US11399640

申请日：2006-04-06

Applicant: Paul Najt ,  Tang-Wei Kuo ,  James Eng ,  Rodney Rask

Inventor： Paul Najt ,  Tang-Wei Kuo ,  James Eng ,  Rodney Rask

IPC: F02B75/08 ,  F02F3/26 ,  F02B5/00

CPC classification number: F02F3/14 ,  F01L3/04 ,  F01L2101/02 ,  F01L2103/00 ,  F02B1/12 ,  F02B77/02 ,  F05C2251/04 ,  F05C2251/048 ,  Y02T10/128

Abstract: A method to control combustion in an HCCI engine, to mitigate effects of combustion chamber deposits is detailed. The method comprises applying a specific surface coating to a combustion chamber surface. The surface coating has thermal properties substantially similar to the combustion chamber deposits. The thermal properties preferably include a) thermal conductivity, b) heat capacity, and c) thermal diffusivity. Applying a surface coating results in a reduction of combustion variability due to variation in combustion chamber deposits, and an improvement on combustion stability at low loads due to reduced heat loss. A preferred thermally insulating surface coating includes thermal parameters of a heat capacity in a range of 0.03×106 J/m3-K to 2.0×106 J/m3-K; a thermal conductivity in a range of 0.25 W/m-K to 2.5 W/m-K; and, a thermal diffusivity in a range of 1×10−7 m2/s to 8×10−6 m2/s.

Abstract translation: 详细描述了一种控制HCCI发动机燃烧的方法，以减轻燃烧室沉积物的影响。 该方法包括将特定的表面涂层施加到燃烧室表面。 表面涂层具有与燃烧室沉积物基本相似的热性质。 热性质优选包括a）热导率，b）热容量，和c）热扩散率。 施加表面涂层导致由于燃烧室沉积物的变化而导致的燃烧变异性的降低，以及由于热损失减少而在低负载下的燃烧稳定性的改善。 优选的绝热表面涂层包括在0.03×10 -6 / K 3 -K至2.0×10 -6 / V范围内的热容的热参数 > J / m 3 -K; 在0.25W / m-K至2.5W / m-K的范围内的热导率; 并且在1×10 -7 / 2至8×10 -6 / 2范围内的热扩散率 / s。

公开(公告)号：US20070107695A1

公开(公告)日：2007-05-17

申请号：US11399194

申请日：2006-04-06

Applicant: Tang-Wei Kuo ,  Paul Najt ,  James Eng ,  Rodney Rask ,  Orgun Guralp ,  Zoran Filipi ,  Dionissios Assanis ,  Mark Hoffman

Inventor： Tang-Wei Kuo ,  Paul Najt ,  James Eng ,  Rodney Rask ,  Orgun Guralp ,  Zoran Filipi ,  Dionissios Assanis ,  Mark Hoffman

IPC: F02B5/00 ,  F02M7/00

CPC classification number: F02B23/0672 ,  F02D13/0234 ,  F02D35/02 ,  F02D35/023 ,  F02D35/025 ,  F02D35/028 ,  Y02T10/125 ,  Y02T10/128 ,  Y02T10/18

Abstract: A control system and method to dynamically determine a parametric value for combustion chamber deposits (CCD), e.g. in a controlled auto-ignition engine, including in-situ evaluation of thickness of CCD, based on a sensor which monitors combustion. It includes a temperature sensor operative to monitor the combustion chamber, and a CCD parameter that is based upon a peak combustion temperature measured at a crank angle. A CCD parameter can also be determined utilizing an in-cylinder pressure monitor, wherein a combustion chamber deposit parameter is based upon crank angle location of a peak in-cylinder pressure parameter.

Abstract translation: 用于动态地确定燃烧室沉积物（CCD）的参数值的控制系统和方法，例如， 在受控自动点火发动机中，包括基于监测燃烧的传感器对CCD的厚度的原位评估。 它包括用于监测燃烧室的温度传感器和基于在曲柄角度下测量的峰值燃烧温度的CCD参数。 也可以使用缸内压力监测器来确定CCD参数，其中燃烧室沉积参数基于峰值缸内压力参数的曲柄角位置。