公开(公告)号：US07047911B2

公开(公告)日：2006-05-23

申请号：US10604929

申请日：2003-08-27

申请人： Neil E. Robb ,  James E. Ignatovich ,  Dale M. Pickelman ,  Theodore A. Malott ,  Gary E. Hart

发明人： Neil E. Robb ,  James E. Ignatovich ,  Dale M. Pickelman ,  Theodore A. Malott ,  Gary E. Hart

IPC分类号： F01P7/02

CPC分类号： F01P7/085 ,  F01P7/042 ,  F16D43/284

摘要： A hydraulically controlled fan drive system for controlling the cooling of an engine and having a method of engagement includes a housing assembly containing a hydraulic fluid and an engaging circuit. The engaging circuit includes a pitot tube coupled within the housing assembly that receives at least a portion of the hydraulic fluid as the housing assembly rotates to drive a clutch pack (and coupled fan) via static pressure. A fluid controller having binary control adjusts the static pressure within the pitot tube at a given rotational speed, thereby controlling the engagement of the clutch pack to a fully engaged drive (utilizing friction type engagement), a fully disengaged drive, and at least two partially engaged clutch positions (i.e. partially engaged utilizing a wet viscous type clutch engagement). To control static pressure release, the fluid controller may utilize a dual spool system valving arrangement or a parallel fixed orifice binary control.

摘要翻译： 一种用于控制发动机冷却并具有接合方法的液压控制风扇驱动系统，包括容纳液压流体和接合回路的壳体组件。 接合电路包括耦合在壳体组件内的皮托管，其随着壳体组件旋转以接收经由静压力驱动离合器组件（和联接的风扇）的至少一部分液压流体。 具有二进制控制器的流体控制器以给定的转速调整皮托管内的静压力，由此控制离合器组件与完全接合的驱动（利用摩擦式接合），完全脱开的驱动器以及至少部分地 接合的离合器位置（即，使用湿粘性离合器接合部分接合）。 为了控制静压释放，流体控制器可以利用双阀芯系统阀装置或平行固定孔二进制控制。

公开(公告)号：US06644933B2

公开(公告)日：2003-11-11

申请号：US10038690

申请日：2002-01-02

申请人： Gerard M. Light ,  James E. Ignatovich ,  Neil E. Robb

发明人： Gerard M. Light ,  James E. Ignatovich ,  Neil E. Robb

IPC分类号： F04B4900

CPC分类号： F16D35/024 ,  F16D37/02 ,  F16D2037/005

摘要： An electronically-controlled viscous coupling is coupled to a water pump to control the coolant flow rate of engine coolant to an engine at a given engine speed to maximize fuel economy and minimize emissions. The viscous coupling has a stationary electrical coil that, when excited by electrical current, induces the driven disk to flex away from an input disk within the viscous, thereby increasing the size of the shear area, thereby decreasing the amount of torque produced to drive the water pump shaft and impellers that control the coolant flow rate. A carrier coupled to the back of the driven disk maximizes the amount of flex allowed to the driven disk, thereby assuring a maximum decrease in rotational speed of the impellers at a given engine speed and ensuring that the driven disk does not contact the stationary coil.

公开(公告)号：US07249664B2

公开(公告)日：2007-07-31

申请号：US11079040

申请日：2005-03-14

申请人： James E. Ignatovich ,  Theodore A. Malott ,  Dale Pickelman

发明人： James E. Ignatovich ,  Theodore A. Malott ,  Dale Pickelman

IPC分类号： F16D25/0638

CPC分类号： F16D43/284 ,  F01P5/02 ,  F01P7/046 ,  F01P7/08 ,  F16D2048/0221

摘要： A hydraulically controlled fan drive system (12) having a method of engagement includes a housing assembly (20) containing a hydraulic fluid (48) and an engaging circuit (36). The engaging circuit (36) includes a pitot tube (152) coupled within the housing assembly (20) that receives at least a portion of the hydraulic fluid (48). An engaging circuit (36) engages the housing assembly (20) to a fan shaft (44) in response to supply of the hydraulic fluid (48) from the pitot tube (152). An electrical control circuit (40) having a relief valve assembly (225) coupled to a main controller (176) is used to control the fluid pressure within the pitot tube (152) that controls the engagement of the housing assembly (20).

摘要翻译： 具有接合方法的液压控制风扇驱动系统（12）包括容纳液压流体（48）和接合回路（36）的壳体组件（20）。 接合电路（36）包括耦合在壳体组件（20）内的皮托管（152），其容纳至少一部分液压流体（48）。 响应于来自皮托管（152）的液压流体（48）的供应，接合电路（36）将壳体组件（20）接合到风扇轴（44）。 具有联接到主控制器（176）的安全阀组件（225）的电气控制电路（40）用于控制皮托管（152）内的控制壳体组件（20）的接合的流体压力。