公开(公告)号：US06194819B1

公开(公告)日：2001-02-27

申请号：US09112891

申请日：1998-07-09

Applicant: George Codina ,  Lonnie D. Atteberry ,  Steven Yap ,  Donald R. Krull

Inventor： George Codina ,  Lonnie D. Atteberry ,  Steven Yap ,  Donald R. Krull

IPC: H01T1316

CPC classification number: H01T13/14 ,  H01T13/32 ,  H01T13/467

Abstract: A spark plug with lower operating temperature has an electrode with a tip which evenly distributes heat imparted to the firing end portion of the spark plug. The electrical insulating material surrounding the electrode is spaced at a predetermined distance from the firing end portion of the spark plug to allow the heat to more quickly travel away from the firing end portion. An annular groove in the first end surface of the electrical insulating material minimizes electrical surface discharge between the electrode and the annular metal shell of the spark plug. Radii at locations of change in cross-section in the bore of the annular metal shell and the electrical insulating material serve to minimize voltage breakdown.

Abstract translation: 具有较低工作温度的火花塞具有电极，该电极具有均匀分布施加到火花塞的点火端部的热量的尖端。 围绕电极的电绝缘材料与火花塞的击发端部隔开预定距离，以允许热量更快地远离烧制端部。 电绝缘材料的第一端面中的环形槽最小化电极和火花塞的环形金属壳之间的电表面放电。 在环形金属壳孔和电绝缘材料的孔中的横截面变化的位置处的半径用于最小化电压击穿。

公开(公告)号：US6152702A

公开(公告)日：2000-11-28

申请号：US275300

申请日：1999-03-24

Applicant: George Codina ,  Donna J. Murr

Inventor： George Codina ,  Donna J. Murr

IPC: F04B1/32 ,  F04B49/06 ,  F04B49/00

CPC classification number: F04B1/32 ,  F04B49/065 ,  F04B2201/1201 ,  F04B2205/04 ,  F04B2205/09

Abstract: An apparatus and method for sensing a parameter of a hydraulic pump. The hydraulic pump includes a housing and an input shaft. The shaft is rotationally driven relative to the housing and electrically coupled to the housing. The hydraulic pump forms a variable capacitor. The apparatus includes an electrode portion positioned adjacent to the input shaft and is electrically isolated from the housing and input shaft. The electrode portion and the input shaft form a fixed capacitor. The fixed capacitor and the variable capacitor are coupled. The apparatus supplies electrical energy to the electrode portion and produces a capacitive signal indicative of the capacitance value of the variable capacitor. The apparatus further applies a filter to the capacitive signal and produces a filtered capacitive signal. The parameter of the hydraulic pump is determined as a function of the filtered capacitive signal.

Abstract translation: 一种感应液压泵参数的装置和方法。 液压泵包括壳体和输入轴。 轴相对于壳体旋转地驱动并且电耦合到壳体。 液压泵形成可变电容器。 该装置包括邻近输入轴定位并与外壳和输入轴电隔离的电极部分。 电极部分和输入轴形成固定电容器。 固定电容器和可变电容器耦合。 该装置向电极部提供电能，并产生表示可变电容器的电容值的电容信号。 该装置还对电容信号施加滤波器并产生经滤波的电容信号。 液压泵的参数被确定为滤波电容信号的函数。

公开(公告)号：US5670721A

公开(公告)日：1997-09-23

申请号：US521601

申请日：1995-08-31

Applicant: George Codina ,  Chandrasekar Ramamoorthy ,  Donna J. Murr

Inventor： George Codina ,  Chandrasekar Ramamoorthy ,  Donna J. Murr

IPC: G01L9/12 ,  G01L11/00

CPC classification number: G01L11/00 ,  G01L9/12

Abstract: An apparatus for measuring the pressure of a liquid in a container includes a capacitor formed by a pair of electrodes. A charging circuit produces a charging current of constant magnitude. The charging current is used to charge the capacitor to a predetermined voltage. A timing circuit measures the elapsed time between the time at which the charging circuit begins to produce the charging current and the time at which the capacitor has been charged to the predetermined voltage. The timing circuit produces a pulse width modulated signal. The magnitude of the pulse width modulated signal is indicative of the time difference and thus, the pressure within the container.

Abstract translation: 用于测量容器中的液体的压力的装置包括由一对电极形成的电容器。 充电电路产生恒定的充电电流。 充电电流用于将电容器充电至预定电压。 定时电路测量充电电路开始产生充电电流的时间与电容器已充电到预定电压的时间之间的经过时间。 定时电路产生脉宽调制信号。 脉冲宽度调制信号的大小表示时间差，因此表示容器内的压力。

公开(公告)号：US5631568A

公开(公告)日：1997-05-20

申请号：US522472

申请日：1995-08-31

Applicant: George Codina ,  Donna J. Murr ,  Chandrasekar Ramamoorthy

Inventor： George Codina ,  Donna J. Murr ,  Chandrasekar Ramamoorthy

IPC: G01N27/22 ,  G01N33/28 ,  G01R27/26

CPC classification number: G01N33/2888 ,  G01N27/221 ,  G01N33/2835 ,  F01M2011/14

Abstract: An apparatus for determining the remaining life of hydraulic fluid in a hydraulic system having a hydraulic container includes a capacitor formed by a pair of electrodes. A charging circuit produces a charging current of constant magnitude. The charging current is used to charge the capacitor to a predetermined voltage. A timing circuit measures the elapsed time between the time at which the charging circuit begins to produce the charging current and the time at which the capacitor has been charged to the predetermined voltage. The timing circuit also produces a pulse width modulated signal. The magnitude of the pulse width modulated signal is indicative of the time difference. A controller receives the pulse width modulated signal and determines the life of the hydraulic fluid.

Abstract translation: 一种用于确定具有液压容器的液压系统中的液压流体的剩余寿命的装置包括由一对电极形成的电容器。 充电电路产生恒定的充电电流。 充电电流用于将电容器充电至预定电压。 定时电路测量充电电路开始产生充电电流的时间与电容器已充电到预定电压的时间之间的经过时间。 定时电路还产生脉宽调制信号。 脉宽调制信号的大小表示时差。 控制器接收脉宽调制信号并确定液压油的使用寿命。

公开(公告)号：US5528928A

公开(公告)日：1996-06-25

申请号：US380894

申请日：1995-01-30

Applicant: Thomas M. Baker ,  George Codina ,  John W. Crayton

Inventor： Thomas M. Baker ,  George Codina ,  John W. Crayton

IPC: G01M15/04 ,  G01M15/06 ,  G01M15/00

CPC classification number: G01M15/042 ,  G01M15/06

Abstract: In one aspect of the invention, an apparatus for sensing a plurality of operating parameters of an internal combustion engine is disclosed. An energy source supplies electrical energy to the pistons, whereby each piston forms a variable capacitor with the engine housing. The capacitance value of each variable capacitor changes as a function of the relative position of the piston to the housing. An oscillator circuit produces a capacitive signal that is indicative of the capacitance value of each variable capacitor. A microprocessor receives the capacitive signal and responsively determines one of a plurality of operating parameters of the engine.

Abstract translation: 在本发明的一个方面，公开了一种用于感测内燃机的多个操作参数的装置。 能量源向活塞提供电能，由此每个活塞与发动机壳体形成可变电容器。 每个可变电容器的电容值作为活塞与壳体的相对位置的函数而变化。 振荡器电路产生表示每个可变电容器的电容值的电容信号。 微处理器接收电容信号并且响应地确定发动机的多个操作参数之一。

公开(公告)号：US5438261A

公开(公告)日：1995-08-01

申请号：US197624

申请日：1994-02-16

Applicant: George Codina ,  Thomas M. Baker ,  Lisa A. Creger ,  J. Thomas Vachon

Inventor： George Codina ,  Thomas M. Baker ,  Lisa A. Creger ,  J. Thomas Vachon

IPC: G01B7/00 ,  F15B15/28 ,  G01D5/20 ,  G01B7/14 ,  F01B25/04 ,  G01P3/50 ,  H01F21/00

CPC classification number: G01D5/2006 ,  F15B15/28

Abstract: In one aspect of the present invention, an apparatus for determining an extended length of a hydraulic cylinder is disclosed. A piston and rod are contained within a cylindrical housing of the hydraulic cylinder. A coil is wound about the rod and is attached to the piston and an end of the cylindrical housing. The coil extends and retracts with the reciprocating movement of the piston. An oscillator is coupled to the coil and produces a position signal in response to the inductance of the coil. A circuit receives the position signal, and determines the incremental linear position and velocity of the piston and rod relative to the housing in response to the frequency of the position signal.

Abstract translation: 在本发明的一个方面，公开了一种用于确定液压缸延伸长度的装置。 活塞和杆被容纳在液压缸的圆柱形壳体内。 线圈围绕杆缠绕并附接到活塞和圆柱形壳体的端部。 线圈随着活塞的往复运动而伸缩。 振荡器耦合到线圈并响应于线圈的电感产生位置信号。 电路接收位置信号，并响应于位置信号的频率确定活塞和杆相对于壳体的增量线性位置和速度。

公开(公告)号：US4667738A

公开(公告)日：1987-05-26

申请号：US728612

申请日：1985-04-29

Applicant: George Codina

Inventor： George Codina

IPC: E21B43/24 ,  E21B43/26 ,  E21B49/00

CPC classification number: E21B43/26 ,  E21B43/2401 ,  E21B43/2405

Abstract: Disclosed is a method and apparatus for enhancing oil and/or gas production from a subterranean well by using high energy, short duration electrical pulses to fracture underground rock formations containing entrapped oil or gas. The invention obviates the large power requirements of the prior art devices by generating a series of constant pulses having different durations into the rock formation to determine its characteristic impedance. Once the characteristic impedance has been determined, a second pulse having an amplitude and duration matching this characteristic impedance is discharged into the rock formation to alter its dynamic characteristics. A third pulse is then discharged into the rock formation to cause its fracture.

Abstract translation: 公开了一种通过使用高能量，短持续时间的电脉冲来破坏含有截留的油或气体的地下岩层来提高来自地下井的油和/或气产量的方法和装置。 本发明通过产生具有不同持续时间的一系列恒定脉冲来消除现有技术装置的大功率需求，以确定其特征阻抗。 一旦确定了特征阻抗，具有与该特征阻抗匹配的幅度和持续时间的第二脉冲被排放到岩层中以改变其动态特性。 然后将第三脉冲排放到岩层中以引起其断裂。