公开(公告)号：US06981488B2

公开(公告)日：2006-01-03

申请号：US10663630

申请日：2003-09-16

申请人： Ralph E. Harris ,  Gary D. Bourn ,  Anthony J. Smalley

发明人： Ralph E. Harris ,  Gary D. Bourn ,  Anthony J. Smalley

IPC分类号： F02D41/14 ,  F02M7/00

CPC分类号： F02D41/0085 ,  F02D35/023

摘要： A method of balancing combustion among cylinders of an internal combustion engine. For each cylinder, a normalized peak firing pressure is calculated as the ratio of its peak firing pressure to its combustion pressure. Each cylinder's normalized peak firing pressure is compared to a target value for normalized peak firing pressure. The fuel flow is adjusted to any cylinder whose normalized peak firing pressure is not substantially equal to the target value.

摘要翻译： 一种在内燃机的气缸之间平衡燃烧的方法。 对于每个气缸，归一化峰值点火压力被计算为其峰值点火压力与其燃烧压力的比值。 将每个气缸的归一化峰值点火压力与归一化峰值点火压力的目标值进行比较。 燃料流量被调节到其归一化峰值点火压力基本上不等于目标值的任何气缸。

公开(公告)号：US07275916B2

公开(公告)日：2007-10-02

申请号：US10720767

申请日：2003-11-24

申请人： Jack A. Smith ,  James J. Cole ,  Gary D. Bourn ,  Ralph E. Harris ,  Anthony J. Smalley

发明人： Jack A. Smith ,  James J. Cole ,  Gary D. Bourn ,  Ralph E. Harris ,  Anthony J. Smalley

IPC分类号： F04B49/00

CPC分类号： F04B35/002 ,  F02D29/00 ,  F02D37/02 ,  F02D41/021 ,  F04B49/065 ,  F04B2205/05

摘要： A method and system for controlling an engine that drives a reciprocating compressor, such as the large compressors used for natural gas transmission. A controller receives data from the compressor representing operation conditions, such as load step, suction pressure, and discharge pressure. The controller then calculates engine control parameters, such as air intake and spark timing, based on the compressor data to optimize engine performance and emissions.

摘要翻译： 用于控制驱动往复式压缩机的发动机的方法和系统，例如用于天然气传输的大型压缩机。 控制器从压缩机接收表示操作条件的数据，例如负载阶跃，吸入压力和排出压力。 然后，控制器基于压缩机数据来计算发动机控制参数，例如进气和火花定时，以优化发动机性能和排放。

公开(公告)号：US5471400A

公开(公告)日：1995-11-28

申请号：US248458

申请日：1994-05-24

申请人： Anthony J. Smalley ,  C. Richard Gerlach ,  Ralph E. Harris

发明人： Anthony J. Smalley ,  C. Richard Gerlach ,  Ralph E. Harris

IPC分类号： G01M3/26 ,  G01F22/02 ,  G01F25/00 ,  G06G7/57

CPC分类号： G01M3/26

摘要： A computer-based system and method detects and specifies valve and ring leaks in reciprocating compressors of the type used in natural gas transmission networks. The system employs a method comprising the following steps. The cylinder pressure is measured as a function of cylinder volume to obtain a measured PV card. A predictive model then calculates a predicted PV card for the subject compressor cylinder without including effects of simulated leaks. The predicted PV card is them compared to the measured PV card. The nature and character of the differences between the measured and predicted PV cards indicates whether a leak in the subject compressor cylinder is a suction valve leak, a discharge valve leak, or a piston ring leak. The predictive model is then iterated with simulations of the indicated leak included until the resulting predicted PV card matches the actual measured PV card for the compressor cylinder. The final value of the leak parameters in the model required for the match indicate the nature and magnitude of a corresponding actual leak in the compressor cylinder. Other useful information such as the efficiency of the compressor system with and without the leak and the economic impact of the leak are also derived from the iterative match process.

摘要翻译： 基于计算机的系统和方法检测并指定在天然气传输网络中使用的往复式压缩机中的阀和环泄漏。 该系统采用包括以下步骤的方法。 测量气缸压力作为气缸体积的函数，以获得测量的PV卡。 然后，预测模型计算目标压缩机气缸的预测PV卡，而不包括模拟泄漏的影响。 他们预测的PV卡与测量的PV卡相比。 测量和预测的PV卡之间的差异的性质和性质表明主体压缩机气缸中的泄漏是吸入阀泄漏，排放阀泄漏还是活塞环泄漏。 然后通过包括指示的泄漏的模拟来迭代预测模型，直到产生的预测PV卡与压缩机气缸的实际测量PV卡匹配。 匹配所需模型中的泄漏参数的最终值表示压缩机气缸中相应的实际泄漏的性质和大小。 其他有用的信息，例如压缩机系统有无泄漏的效率和泄漏的经济影响也来自于迭代匹配过程。