公开(公告)号：US20130074583A1

公开(公告)日：2013-03-28

申请号：US13246923

申请日：2011-09-28

申请人： Paul D. PERRY

发明人： Paul D. PERRY

IPC分类号： G01M3/20

CPC分类号： F02M25/0809

摘要： A vapor management system (10) includes a fuel tank (12), a canister (14), a pressure control valve (16) between the tank and canister and defining a high pressure side (34) and a low pressure side (32), a vacuum source (18), a purge valve (19) between the canister and vacuum source, a leak detection valve (20) connected with the canister and including a processor (30). A pressure sensor (24) and a temperature sensor (26) are disposed in a fuel vapor cavity of the fuel tank, with signals from the sensors being received by the processor. Based on an absolute temperature measured by the temperature sensor, the processor compares a predicted pressure in the fuel tank to the measured absolute pressure, and identifies a leak on the high pressure side if the predicted pressure is outside a tolerance range, while maintaining pressure in the fuel tank.

摘要翻译： 蒸汽管理系统（10）包括燃料箱（12），罐（14），罐和罐之间的压力控制阀（16），并且限定高压侧（34）和低压侧（32） ，真空源（18），在所述罐和真空源之间的净化阀（19），与所述罐连接并包括处理器（30）的泄漏检测阀（20）。 压力传感器（24）和温度传感器（26）设置在燃料箱的燃料蒸气腔中，来自传感器的信号由处理器接收。 基于由温度传感器测量的绝对温度，处理器将燃料箱中的预测压力与测量的绝对压力进行比较，并且如果预测压力在公差范围之外，则识别高压侧的泄漏，同时保持压力 燃油箱。

公开(公告)号：US07490624B2

公开(公告)日：2009-02-17

申请号：US11094789

申请日：2005-03-31

申请人： Gilles Delaire ,  Kirk Ivens ,  Paul D. Perry ,  Andre Veinotte

发明人： Gilles Delaire ,  Kirk Ivens ,  Paul D. Perry ,  Andre Veinotte

IPC分类号： F16K37/00 ,  F16K13/10 ,  F02M33/00

CPC分类号： F02M25/0854 ,  F16K13/10 ,  F16K17/196 ,  Y10T137/4553 ,  Y10T137/4568 ,  Y10T137/4666 ,  Y10T137/8326 ,  Y10T137/8342

摘要： A valve apparatus includes a housing, which defines an interior chamber, a baffle disposed in the interior chamber, and a volume of liquid. The housing includes first, second and third portions. The first portion includes first and second ports that communicate with the interior chamber. The second portion is spaced from the first portion along a longitudinal axis. And the third portion extends along the longitudinal axis between the first and second portions. The baffle at least partially defines a helical fluid flow path between the first and second ports, and the volume of the liquid is disposed in the second portion of the housing.

公开(公告)号：US20070256671A1

公开(公告)日：2007-11-08

申请号：US11797136

申请日：2007-05-01

申请人： Paul D. Perry

发明人： Paul D. Perry

IPC分类号： F02M33/02 ,  F16K17/26 ,  F16K31/14

CPC分类号： F02M25/0836 ,  F16K31/08 ,  Y10T137/7771 ,  Y10T137/7782

摘要： A pressure management apparatus (10) includes a housing (30) defining a fluid communication passage between first and second fluid ports (46, 48). A poppet (40) is disposed in the housing and is movable between first and second positions. The first position prevents fluid communication between the first and second ports and the second position permits fluid communication between the first and second ports. The poppet includes a structure (75) translatable along an axis relative to the housing. At least a portion of the structure includes a permanent magnet (72). A member (78) is fixed with respect to the housing and is associated with the structure. At least a portion of the member is of ferrous material such that the magnet is attracted to the member so that at least a portion of the poppet frictionally engages the member to create a dashpot damping of resonance of the poppet in the second position.

摘要翻译： 压力管理装置（10）包括限定在第一和第二流体端口（46,48）之间的流体连通通道的壳体（30）。 提升头（40）设置在壳体中并且可在第一和第二位置之间移动。 第一位置防止第一和第二端口之间的流体连通，并且第二位置允许第一和第二端口之间的流体连通。 提升阀包括可相对于壳体沿轴线平移的结构（75）。 该结构的至少一部分包括永磁体（72）。 构件（78）相对于壳体是固定的并且与结构相关联。 构件的至少一部分是铁质材料，使得磁体被吸引到构件，使得提升阀的至少一部分摩擦地接合构件，以产生在第二位置中提升阀共振的缓冲器阻尼。

公开(公告)号：US06585230B2

公开(公告)日：2003-07-01

申请号：US10209637

申请日：2002-08-01

申请人： Paul D. Perry

发明人： Paul D. Perry

IPC分类号： F02M3302

CPC分类号： F02M25/0809 ,  F02M25/0836 ,  F02M25/0854 ,  Y10T137/7771 ,  Y10T137/7781 ,  Y10T137/86324

摘要： An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the headspace in a fuel tank, a canister that collects volatile fuel vapors from the headspace, a purge valve, and all associated hoses and connections.

摘要翻译： 集成的压力管理系统管理压力并检测燃料系统中的泄漏。 集成压力管理系统还对燃料箱中的顶部空间进行泄漏诊断，从顶部空间收集挥发性燃料蒸气的罐，净化阀以及所有相关联的软管和连接。

公开(公告)号：US06561009B1

公开(公告)日：2003-05-13

申请号：US10122619

申请日：2002-04-15

申请人： Paul D. Perry ,  Raymond Rasokas

发明人： Paul D. Perry ,  Raymond Rasokas

IPC分类号： G01M304

CPC分类号： F02M25/0818 ,  F02M25/089

摘要： A leak test system and method for a motor vehicle fuel system. A pump forces air under pressure into vapor containment space. The pump operates in accordance with steps established by a processor. The pump creates superatmospheric target pressure in the space during an initial charging phase step, and after completion of that step, the pump is duty-cycled to regulate pressure in the space at the target pressure. A duty cycle comprises a burst of individual air pulses, one after another. The processor processes data corresponding to the duty cycle using P-I-D operations to set the number of pulses in a succeeding burst for regulating the pressure. When stability of the duty cycle is attained, the period of the duty cycle indicates leakage from the space.

摘要翻译： 一种用于机动车辆燃料系统的泄漏测试系统和方法。 泵将压力下的空气压入蒸汽容纳空间。 泵根据处理器建立的步骤进行操作。 泵在初始充电阶段步骤期间在空间中产生超大气压的目标压力，并且在该步骤完成之后，泵被占空循环以调节在目标压力下的空间中的压力。 占空比一个接一个地包括单独的空气脉冲的突发。 处理器使用P-I-D操作处理对应于占空比的数据，以设置用于调节压力的后续脉冲串中的脉冲数。 当达到占空比的稳定性时，占空比的周期表示从空间泄漏。

公开(公告)号：US06505514B1

公开(公告)日：2003-01-14

申请号：US09543741

申请日：2000-04-05

申请人： Paul D. Perry

发明人： Paul D. Perry

IPC分类号： G01L700

CPC分类号： F02M25/0809 ,  F02M25/0836 ,  F02M25/0854 ,  H01H35/2614 ,  H01H35/34

摘要： A sensor arrangement for an integrated pressure management apparatus. The sensor arrangement includes a chamber having an interior volume that varies in response to fluid pressure in the chamber. The chamber includes a diaphragm displaceable between a first configuration corresponding to fluid pressure above a certain pressure level and to a second configuration corresponding to fluid pressure below the certain pressure level. A resilient element biases the diaphragm toward the first configuration and a switch is actuated by the diaphragm in the second configuration.

摘要翻译： 一种用于集成压力管理装置的传感器装置。 传感器装置包括具有响应腔室中的流体压力而变化的内部容积的室。 所述腔室包括可在对应于高于某一压力水平的流体压力的第一构型与对应于低于所述特定压力水平的流体压力的第二构型之间移动的隔膜。 弹性元件将隔膜朝向第一构造偏置，并且在第二构造中由隔膜致动开关。

公开(公告)号：US06470861B1

公开(公告)日：2002-10-29

申请号：US09566138

申请日：2000-05-05

申请人： Paul D. Perry

发明人： Paul D. Perry

IPC分类号： F02M3302

CPC分类号： F02M25/0854 ,  F02M25/0809 ,  F02M25/0836 ,  Y10T137/7771 ,  Y10T137/7782

摘要： An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the headspace in a fuel tank, a canister that collects volatile fuel vapors from the headspace, a purge valve, and all associated hoses and connections.

摘要翻译： 集成的压力管理系统管理压力并检测燃料系统中的泄漏。 集成压力管理系统还对燃料箱中的顶部空间进行泄漏诊断，从顶部空间收集挥发性燃料蒸气的罐，净化阀以及所有相关联的软管和连接。

公开(公告)号：US06283097B1

公开(公告)日：2001-09-04

申请号：US08918065

申请日：1997-08-25

申请人： John E. Cook ,  Paul D. Perry ,  Craig A. Weldon

发明人： John E. Cook ,  Paul D. Perry ,  Craig A. Weldon

IPC分类号： F02M3704

CPC分类号： F02M25/0818

摘要： A leak detection system for detecting leakage from a portion of a vapor confinement space which is upstream of an inlet of a canister purge valve relative to an engine. During a test, an electric-motor-operated air pump pumps atmospheric air through a flowpath providing communication between the pump and the vapor confinement space. A flowmeter has a thermistor in the flowpath. The thermistor has a predetermined temperature vs. electric current characteristic that enables it to provide a signal correlated to flow of air through the flowpath. An electric circuit supplies and measures the electric current drawn by the thermistor to create a signal representative of the pumped airflow. The test is conducted in accordance with an algorithm that pre-heats the thermistor to a stable state before the pump is turned on. The pump is then turned on to create a predefined superatmospheric target pressure in the vapor confinement space. Once the target pressure is reached, the airflow measured by the flowmeter provides a leakage measurement. The pump is then shut off and the vapor space vented to atmosphere through the flowmeter and pump. The thermistor current draw is once again measured to detect any drift in its characteristic.

摘要翻译： 一种泄漏检测系统，用于检测来自罐排放阀的入口相对于发动机的上游的蒸汽限制空间的一部分的泄漏。 在测试期间，电动机操作的空气泵通过提供泵和蒸汽限制空间之间的连通的流动路径泵送大气。 流量计在流路中具有热敏电阻。 热敏电阻具有预定的温度对电流特性，使其能够提供与通过流路的空气流相关的信号。 电路提供并测量由热敏电阻吸引的电流，以产生代表泵送气流的信号。 该测试根据在泵打开之前将热敏电阻预热到稳定状态的算法进行。 然后将泵打开以在蒸汽限制空间中产生预定的超大气压目标压力。 一旦达到目标压力，流量计测量的气流就会提供泄漏测量。 然后关闭泵，蒸汽空间通过流量计和泵排放到大气中。 再次测量热敏电阻电流消耗以检测其特性中的任何漂移。

公开(公告)号：US6016690A

公开(公告)日：2000-01-25

申请号：US36128

申请日：1998-03-06

申请人： John E. Cook ,  Paul D. Perry ,  Paul V. Terek

发明人： John E. Cook ,  Paul D. Perry ,  Paul V. Terek

IPC分类号： G01M3/02 ,  G01M3/32

CPC分类号： G01M3/025

摘要： A leak detection method for an on-board evaporative emission leak detection system that detects leakage from an evaporative emission space of a fuel system of an automotive vehicle. During a leak detection test, a vent valve closes, and a purge valve, that selectively communicates the evaporative emission space with the engine intake manifold, opens to cause vacuum to be drawn in the evaporative emission space. A vacuum regulator valve regulates evaporative emission space vacuum to a defined vacuum. Subsequently, the purge valve closes. Loss of vacuum, indicative of leakage, is signaled by a pressure sensor. An algorithm detects a substantially constant rate of vacuum loss and then measures the amount of loss over a defined time interval. That measurement is then compensated for volume of the evaporative emission space and rate of fuel volatilization to arrive at a value forming a basis for making a leakage determination.

摘要翻译： 一种用于检测来自机动车辆的燃料系统的蒸发排放空间的泄漏的车载蒸发排放泄漏检测系统的泄漏检测方法。 在泄漏检测测试期间，排气阀关闭，并且将选择性地将蒸发发射空间与发动机进气歧管连通的排气阀打开，从而在蒸发发射空间内吸引真空。 真空调节阀将蒸发发射空间真空调节至确定的真空。 随后，清洗阀关闭。 通过压力传感器发出指示泄漏的真空损失。 算法检测基本上恒定的真空度损失率，然后在规定的时间间隔内测量损失量。 然后，该测量值补偿蒸发发射空间的体积和燃料挥发速率，以达到形成泄漏确定基础的值。

公开(公告)号：US5727532A

公开(公告)日：1998-03-17

申请号：US739741

申请日：1996-11-07

申请人： Gary Everingham ,  John E. Cook ,  Paul D. Perry ,  Murray F. Busato

发明人： Gary Everingham ,  John E. Cook ,  Paul D. Perry ,  Murray F. Busato

IPC分类号： F02M25/08 ,  F02M33/02

CPC分类号： F02M25/0836 ,  F02M2025/0845

摘要： The purge valve embodies a solenoid that has a linear force vs. current characteristic acting on the armature. Effects of hysteresis are minimized by certain constructional features and the manner of operating the valve by an associated control circuit.

摘要翻译： 吹扫阀体现了螺线管，其具有作用在电枢上的线性力与电流特性。 通过某些结构特征和相关控制电路操作阀门的方式，使滞后效应最小化。