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    • 4. 发明授权
    • Rotational control apparatus
    • 旋转控制装置
    • US5586635A
    • 1996-12-24
    • US414279
    • 1995-03-31
    • Chris NelsonDavid R. HennessyJames P. LeClaire
    • Chris NelsonDavid R. HennessyJames P. LeClaire
    • F16D25/08F16D25/12F16D25/06
    • F16D25/123F16D25/08
    • A rotational control apparatus (A) having a rotatable input (26 or 180) and output (26 or 180) with respective interface discs (106, 180). Three sets of two diametrically opposed pistons (64 and 66, 68 and 70, 72 and 74) are controllable to rotatably relate the interface discs (106, 180). The piston sets (64 and 66, 68 and 70, 72 and 74) include piston heads (76) with dissimilar diameters such that each of the sets of pistons (64 and 66, 68 and 70, 72 and 74) may apply a dissimilar torque for a given amount of air pressure. Each of the piston sets (64 and 66, 68 and 70, 72 and 74) may be actuated independently or in combination with each of the other sets of pistons (64 and 66, 68 and 70, 72 and 74) such that the interface discs (106, 180) may be rotatably related to each other with varying degrees of torque. The rotational control apparatus (A) also includes a unique interface disc (106) with a frustoconical annular projection (136) for drawing relatively hot air away from the hub (26) near the interface disc (106) and out of the apparatus (A). The rotational control apparatus (A) further includes a unique set of axially extending channels (38, 60, 111) for the conveyance of air for cooling the interface discs (106, 180) from a location remote from the interface discs (106, 180). Blades (152) on interface disc (106) draw relatively cool air through the channels (38, 60, 111) to the hub (26) near the interface disc (106).
    • 旋转控制装置(A)具有可旋转的输入(26或180)以及具有相应接口盘(106,180)的输出(26或180)。 三组两个直径相对的活塞(64和66,68和70,72和74)是可控制的,以可旋转地联接接口盘(106,180)。 活塞组件(64和66,68和70,72和74)包括具有不同直径的活塞头(76),使得每组活塞(64和66,68和70,72和74)可以施加不同的 给定空气压力的扭矩。 每个活塞组(64和66,68和70,72和74)可以独立地或与其它活塞组(64和66,68和70,72和74)中的每一个组合地致动,使得界面 盘(106,180)可以以不同的扭矩相互可旋转地相关联。 旋转控制装置(A)还包括具有截头圆锥形环形突起(136)的独特的界面盘(106),用于将接近盘(106)附近的轮毂(26)的相对热空气从设备(A) )。 旋转控制装置(A)还包括一组独特的轴向延伸的通道(38,60,111),用于输送空气以从远离接口盘(106,180)的位置冷却接口盘(106,180) )。 接口盘(106)上的叶片(152)将较冷的空气通过通道(38,60,111)吸附到接口盘(106)附近的轮毂(26)。
    • 9. 发明授权
    • Integrated fan assembly with variable pitch blades
    • 具有可变桨距叶片的集成风扇组件
    • US06109871A
    • 2000-08-29
    • US829060
    • 1997-03-31
    • Chris NelsonDave HennessyBradford Palmer
    • Chris NelsonDave HennessyBradford Palmer
    • F01P7/06F04D29/26F04D29/32F04D29/36G01B7/14G01P3/487F04D27/00
    • F04D29/362F01P7/06F04D29/263G01B7/14G01P3/487
    • A fan assembly (10) includes first and second housing sections (70, 72) which, when mated by a first set of fasteners, define a plurality of circumferentially spaced openings (162) that lead to an internal housing chamber (82). The fan assembly (10) also includes a plurality of blade units (140), each of which includes an integral support stem (142) having a journal portion (148) rotatably mounted within a respective one of the openings (162), an enlarged flange portion (144) and a radial post portion (138) rotatably supported by a hub member (106) within the internal chamber (82). Each blade unit (140) preferably has a thrust bearing (156), bushing sleeve (158) and fan blade (152) integrated with the support stem (142), with the fan blade (152) being preferably molded to the support stem (142) following positioning of the thrust bearing (156) and bushing sleeve (158) to form an integral component. The fan assembly (10) further includes an actuator member (112) that is movably supported within the internal housing chamber (82) and which is adapted to engage a pin (166) of the support stem (142) at a position offset from a rotational axis thereof to adjust the pitch of the fan blades (152). The fan assembly (10) is adapted to be attached to a drive device (12) with a portion (42) of the drive device (12) covering a first set of fasteners (78) such that the first and second housing sections (70, 72) can only be disassembled following detachment from the drive device (12). A sensing arrangement (58, 180) is also preferably provided to generate signals indicative of at least one of the pitch and rotating speed of the fan blades (152).
    • 风扇组件(10)包括第一和第二壳体部分(70,72),当第一组紧固件配合时,第一和第二壳体部分限定出多个周向间隔开的开口(162),其通向内部容纳室(82)。 风扇组件(10)还包括多个叶片单元(140),每个叶片单元包括具有可旋转地安装在相应的一个开口(162)内的轴颈部分(148)的整体支撑杆(142),放大 凸缘部分(144)和由内部腔室(82)内的轮毂构件(106)可旋转地支撑的径向柱部分(138)。 每个叶片单元(140)优选地具有与支撑杆(142)成一体的推力轴承(156),衬套套管(158)和风扇叶片(152),其中风扇叶片(152)优选地被模制到支撑杆 142)以及推力轴承(156)和衬套套(158)的定位之后形成一个整体部件。 风扇组件(10)还包括致动器构件(112),该致动器构件(112)可移动地支撑在内部容纳室(82)内,并且适于在支撑杆(142)的销钉(166) 旋转轴线以调节风扇叶片(152)的间距。 风扇组件(10)适于附接到驱动装置(12),其中驱动装置(12)的一部分(42)覆盖第一组紧固件(78),使得第一和第二壳体部分(70) ,72)只能在与驱动装置(12)分离之后被拆卸。 还优选地,提供感测装置(58,180)以产生指示风扇叶片(152)的俯仰和转速中的至少一个的信号。