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1. 发明授权

US6146223A Marine propulsion unit with water inlets in all quadrants of the front portion of its torpedo-shape gearcase 有权
标题翻译：船用推进装置在其鱼雷形齿轮箱前部的所有象限中都有进水口
公开(公告)号：US6146223A
公开(公告)日：2000-11-14
申请号：US294974
申请日：1999-04-19
申请人： Michael A. Karls , Robert B. Weronke , Jeffrey J. Andrews
发明人： Michael A. Karls , Robert B. Weronke , Jeffrey J. Andrews
IPC分类号： B63H20/28 , F01P3/20 , F02B61/04 , B63H21/10
CPC分类号： F01P3/202 , B63H20/20 , B63H20/285 , F02B61/045 , B63H20/32 , B63H2020/326
摘要： A marine propulsion device is provided with a water inlet system that comprises at least a plurality of frontal inlet openings at the tapered forward end of a gearcase portion of a housing structure. The water inlet system can be provided for an outboard motor or a stern drive unit. Additional water flow can be provided through side inlet formed in the housing structure of the marine propulsion device where both the frontal inlet openings and side inlet openings are connected with fluid communication with the water pump mounted within the housing structure.
摘要翻译：船舶推进装置设置有进水系统，其在壳体结构的齿轮箱部分的锥形前端处包括至少多个前进入口。可以为舷外马达或船尾驱动单元提供进水系统。可以通过形成在船用推进装置的壳体结构中的侧入口提供额外的水流，其中正面入口和侧入口与进入壳体结构中的水泵的流体连通。

2. 发明授权

US5219272A Variable pitch marine propeller with hydrodynamic shifting 失效
标题翻译：具有水动力转换的变桨距船用螺旋桨
公开(公告)号：US5219272A
公开(公告)日：1993-06-15
申请号：US801719
申请日：1991-12-02
申请人： Ronald M. Steiner , Roger E. Koepsel , Michael A. Karls
发明人： Ronald M. Steiner , Roger E. Koepsel , Michael A. Karls
IPC分类号： B63H1/26 , B63H3/00
CPC分类号： B63H3/008 , B63H1/26
摘要： A marine propeller includes a hub rotatable about a longitudinal axis and having a plurality of blades extending radially outwardly therefrom and pivotable about respective radial pivot axes between a low pitch position and a high pitch position. Each blade has a hydrodynamic force characteristic which shifts the location of the resultant hydrodynamic force on the blade in a direction aiding up-pitching of the blade, and increasing the up-pitching pivot moment with decreasing angles of attack. A counteractive hydrodynamic force generating area is provided on the negative pressure backside surface of the blade and shifts the location of the resultant hydrodynamic force on the frontside surface forwardly with decreasing angle of attack. The blade is pivoted by increased water flow along the counteractive hydrodynamic force generating area with decreasing angles of attack, which increased water flow generates a backside hydrodynamic force on the blade at the counteractive hydrodynamic force generating area spaced from the pivot axis by a moment arm provided by the section of the blade between the pivot axis and the counteractive hydrodynamic force generating area, such that the backside hydrodynamic force acting on the moment arm pivots the blade to an increased pitch position. The counteractive hydrodynamic force generating area on the backside surface at the rearward trailing portion separates water flow along the backside surface at high angles of attack, and re-attaches water flow along the backside surface at low angles of attack to change the backside surface at the rearward trailing portion to a positive pressure area to generate the up-pitching moment.
摘要翻译：船用螺旋桨包括可围绕纵向轴线旋转的轮毂，并且具有从其径向向外延伸的多个叶片，并且能够在低俯仰位置和高俯仰位置之间围绕各自的径向枢转轴线枢转。每个叶片具有流体力学特性，其将所产生的流体动力力在叶片上的位置沿着辅助叶片的俯仰的方向移动，并且随着迎角的增加而增加俯仰的枢转力矩。在叶片的负压背面设置有反作用力流体动力产生区域，并随着攻角的减小而使前侧面上的所得流体动力的位置向前移动。叶片通过沿反作用力动力产生区域的增加的水流枢转，随着迎角的降低，增加的水流在与枢转轴线间隔开的力矩臂处的反作用力动力产生区域上在叶片上产生后侧流体动力通过在枢转轴线和反作用力动力产生区域之间的叶片的截面，使得作用在力矩臂上的背侧流体动力将叶片枢转到增加的俯仰位置。后尾部后表面上的反作用力动力产生区域以较高的迎角分离沿着背面的水流，并且以较低的迎角重新附着沿着背面的水流，以便在后向后部到正压区域以产生俯仰时刻。

3. 发明授权

US4842559A Position control system for a marine propulsion device 失效
标题翻译：船用推进装置的位置控制系统
公开(公告)号：US4842559A
公开(公告)日：1989-06-27
申请号：US172399
申请日：1988-03-24
申请人： John J. Litjens , John M. Griffiths , Michael A. Karls
发明人： John J. Litjens , John M. Griffiths , Michael A. Karls
IPC分类号： B63H20/10
CPC分类号： B63H21/265
摘要： A position control system for a marine propulsion device senses an undesirable operating condition in the propulsion engine, such as low cooling water pressure at high speed or high engine temperature, to automatically lower the drive unit to a position in which the undesirable operating condition is likely to be alleviated. The system may include a logic timer circuit which will lower the drive unit for a short period of time, hold it in that position if the undesirable condition has been eliminated, or lower the drive unit further if the undesirable operating condition remains. The position control system may be incorporated into a conventional lift system, particularly a lift system used with a transom extension mounting assembly.
摘要翻译：用于船舶推进装置的位置控制系统感测推进发动机中不期望的操作状态，例如高速或高发动机温度下的低冷却水压力，以将驱动单元自动降低到不期望的操作条件可能的位置要缓解该系统可以包括逻辑定时器电路，其将在短时间段内降低驱动单元，如果不期望的状况已被消除，则将其保持在该位置，或者如果不期望的操作条件保持则进一步降低驱动单元。位置控制系统可以结合到传统的升降机系统中，特别是与横梁延伸安装组件一起使用的升降系统。

4. 发明授权

US4832639A Marine drive with air trap in auxiliary water inlet 失效
标题翻译：辅助进水口带有疏水阀的海上驱动
公开(公告)号：US4832639A
公开(公告)日：1989-05-23
申请号：US160192
申请日：1988-02-25
申请人： Michael A. Karls , James C. Dutcher
发明人： Michael A. Karls , James C. Dutcher
IPC分类号： F01P3/20 , F02B61/04
CPC分类号： F01P3/202 , F01P2050/12 , F02B61/045
摘要： A marine propulsion unit (10) has a depending gearcase (12) with one or more water inlet openings (22) in the sides of the gearcase for supplying water to a water pump (20), and an auxiliary water inlet opening (32) at an anti-ventilation plate (30) above the propeller (14) for supplying additional water to the water pump (20). The water passage (42, 50) from the auxiliary water inlet opening (32) to the water pump (20) has a portion (44, 52) extending downwardly below the level of the auxiliary water inlet opening (32) and communicating with the side water inlet openings (22). When the side water inlet openings (22) are below the water line and the auxiliary water inlet (32) is above the water line, water is received in the downwardly extending portion (44, 52) of the second passage (42, 50) and blocks air from flowing from the auxiliary inlet opening (32) to the water pump (20), to prevent engine overheating.
摘要翻译：船用推进单元（10）具有在齿轮箱的侧面具有一个或多个进水口（22）的向上齿轮箱（12），用于向水泵（20）供水，以及辅助进水口（32），在螺旋桨（14）上方的防通气板（30）上，用于向水泵（20）供应额外的水。从辅助水入口（32）到水泵（20）的水通道（42,45）具有向下延伸到辅助水入口（32）的水平面下方并与侧入口开口（22）。当侧水入口开口（22）位于水线下面并且辅助水入口（32）在水线之上时，水被容纳在第二通道（42,50）的向下延伸部分（44,45）中，并且阻止空气从辅助入口（32）流到水泵（20），以防止发动机过热。

5. 发明授权

US4636175A Water inlet for outboard propulsion unit 失效
标题翻译：舷外推进单元进水口
公开(公告)号：US4636175A
公开(公告)日：1987-01-13
申请号：US796051
申请日：1985-11-07
申请人： Michael E. Frazzell , Michael A. Karls
发明人： Michael E. Frazzell , Michael A. Karls
IPC分类号： F01P3/20 , F02B61/04 , B63H21/10
CPC分类号： F01P3/202 , F02B61/045
摘要： Water inlets (16) are formed on the sides of the gearcase (13) of a marine propulsion unit. Ramps (26) and (27) are formed in the gearcase (13) ahead of the inlets (16) to direct flow to the inlets (16). The ramp (26) ahead of the upper ports (16) has a greater depth to provide a substantial flow of water at positive pressure, while the ramp (27) ahead of the lower ports (16) has a lesser depth to avoid disturbances in flow when the unit is operated at high speeds where the upper inlets (16) are normally above the resting surface of the water.
摘要翻译：水入口（16）形成在船用推进单元的齿轮箱（13）的侧面上。斜坡（26）和（27）在入口（16）的前方形成在齿轮箱（13）中，以引导流入入口（16）。在上端口（16）之前的斜面（26）具有更大的深度以在正压力下提供大量的水流，而下端口（16）之前的斜坡（27）具有较小的深度，以避免干扰当单元在高入口（16）通常位于水的静止表面上方的高速运行时流动。

6. 发明授权

US4589851A Flushing device for outboard motors 失效
标题翻译：舷外马达冲洗装置
公开(公告)号：US4589851A
公开(公告)日：1986-05-20
申请号：US732113
申请日：1985-05-09
申请人： Michael A. Karls
发明人： Michael A. Karls
IPC分类号： B63H20/36 , F01P11/00 , F02B61/04 , B08B9/00
CPC分类号： B63H20/36 , F01P11/00 , F02B61/045
摘要： A flushing device (12) is provided to supply water to an inlet (18) provided on the bottom of the anti-ventilation plate (14) of an outboard motor. The flushing device (12) uses a mounting bracket (22) to hold a resilient cup (20) compressed in place over the water inlet (18). A hose connector (24) allows the cup (20) to be connected to a water supply.
摘要翻译：提供冲洗装置（12）以向设置在舷外马达的防通气板（14）的底部上的入口（18）供水。冲洗装置（12）使用安装支架（22）来容纳压缩在入水口（18）上的适当位置的弹性杯（20）。软管连接器（24）允许杯（20）连接到供水。

7. 发明授权

US5902160A Twin propeller marine propulsion unit 失效
标题翻译：船舶推进装置与鱼雷入水口
公开(公告)号：US5902160A
公开(公告)日：1999-05-11
申请号：US21029
申请日：1998-02-09
申请人： Robert B. Weronke , Michael A. Karls , Roger E. Koepsel , Donald F. Harry
发明人： Robert B. Weronke , Michael A. Karls , Roger E. Koepsel , Donald F. Harry
IPC分类号： B63H5/10 , B63H20/14 , B63H20/20 , B63H20/26 , B63H20/28 , B63H23/30 , F01N13/12 , F01P3/20 , F02B61/04
CPC分类号： F01N13/12 , B63H20/20 , B63H20/26 , B63H20/285 , B63H21/28 , B63H5/10 , F01P3/202 , F02B61/045 , B63H23/30
摘要： An improved twin propeller marine propulsion unit. A vertical drive shaft is journaled in the lower gearcase and drives a pair of bevel gears. A pair of concentric propeller shafts are mounted in the lower torpedo section of the gearcase and each shaft carries a propeller. A slidable clutch is movable between a neutral, a forward, and a reverse position and serves to operably connect the outer propeller shaft with one of the bevel gears when the clutch is moved to the forward drive position. A gear is mounted for sliding movement in unison with the clutch and acts to operably engage the inner propeller shaft with the second bevel gear when the clutch is in the forward drive position so that both propellers are driven in opposite directions to provide forward motion for the watercraft. The propulsion unit also includes a dual cooling water pick-up system in which seawater is drawn to the water pump both through a series of vertical inlet ports in the gearcase and through a plurality of inlet holes that are located in the forward end of the lower torpedo section. Exhaust gas from the engine is discharged through the rear end of the lower housing section through axial passages in the hub of the forward propeller and then across the outer surface of the rear propeller.
摘要翻译：改进的双螺旋桨船用推进装置。一个垂直传动轴轴颈位于下齿轮箱中，并驱动一对锥齿轮。一对同心推进器轴安装在齿轮箱的下鱼雷部分，每个轴都带有螺旋桨。可滑动离合器可在空档，前进和后退位置之间移动，并且用于当离合器移动到前进驱动位置时可操作地连接外部推进器轴与其中一个锥齿轮。安装齿轮以与离合器一致地滑动运动，并且当离合器处于向前驱动位置时，用于将内推进器轴与第二锥齿轮可操作地接合，使得两个螺旋桨沿相反的方向被驱动以提供向前运动船只。推进装置还包括一个双重冷却水拾取系统，其中海水通过齿轮箱中的一系列垂直入口和通过位于下部的前端的多个入口孔被吸入水泵鱼雷部分。来自发动机的废气通过前部螺旋桨的轮毂中的轴向通道，然后穿过后部螺旋桨的外表面，通过下部壳体部分的后端排出。

8. 发明授权

US5470263A Method and apparatus for improving reverse thrust of a marine drive 失效
标题翻译：用于改善船用驱动器的反向推力的方法和装置
公开(公告)号：US5470263A
公开(公告)日：1995-11-28
申请号：US234397
申请日：1994-04-28
申请人： John M. Griffiths , David A. Gussert , Michael A. Karls
发明人： John M. Griffiths , David A. Gussert , Michael A. Karls
IPC分类号： B63H20/14 , B63H20/26
CPC分类号： B63H20/245 , B63H1/28 , B63H20/26
摘要： A marine drive has a reverse thrust cup on the propeller shaft between the propeller hub and the rear retaining nut. The reverse thrust cup permits the propeller hub to slide on the propeller shaft fore and aft. When the marine drive is in the forward direction the rearward thrust of the propeller forces the propeller hub to the forward position thereby directing engine exhaust out the rear of the propeller hub. Conversely, when the marine drive is in the reverse direction, the forward thrust created by the propeller hub forces the propeller hub to the rearward position thereby directing exhaust out a forward exhaust opening forward of the propeller blades increasing the reverse thrust of the marine drive.
摘要翻译：船用驱动器在螺旋桨毂和后固定螺母之间的传动轴上具有反向推力杯。反向推力杯允许螺旋桨轮毂在前后驱动轴上滑动。当船舶驱动器处于向前的方向时，推进器的向后推力迫使螺旋桨轮毂到达前进位置，从而将发动机排气引导到螺旋桨轮毂的后部。相反，当船舶驱动器处于相反方向时，由推进器轮毂产生的向前推力迫使推进器轮毂到达后部位置，从而引导排出向前的螺旋桨叶片前排气开口，从而增加船舶驱动器的反向推力。

9. 发明授权

US5415575A Marine drive propeller clutch 失效
标题翻译：船用驱动螺旋桨离合器
公开(公告)号：US5415575A
公开(公告)日：1995-05-16
申请号：US248694
申请日：1994-05-24
申请人： Michael A. Karls
发明人： Michael A. Karls
IPC分类号： B63H23/30 , B63H20/14
CPC分类号： B63H23/30 , B63H21/28
摘要： An apparatus and method is provided to release a propeller from the driving engagement of a propeller shaft when the propeller hits an object with sufficient force to otherwise cause damage to the marine drive. A clutch with first and second clutch members disengagably drives the propeller with a plurality of clutch teeth on one of the clutch members and a corresponding plurality of clutch sockets on the other. The clutch teeth and clutch sockets engage to provide a nonslip direct drive from the propeller shaft to the propeller and disengage to allow the propeller shaft to rotate free of the propeller when the propeller strikes an object. The clutch members are biased together such that the clutch teeth engage the clutch sockets during normal boating operation. The torque required to disengage the clutch may be adjustable by an adjustable retaining nut, or by using a spring of different compression rate, or by changing the characteristics of the clutch teeth or clutch sockets. Preferably, the torque required to disengage the clutch is set to a level just below that which would cause damage to the marine drive.
摘要翻译：提供了一种装置和方法，用于当螺旋桨以足够的力撞击物体以便对船舶驱动器造成损坏时，从推进器轴的驱动接合中释放螺旋桨。具有第一离合器构件和第二离合器构件的离合器在离合器构件中的一个离合器和相应的多个离合器套筒中分离地驱动具有多个离合器齿的螺旋桨。离合器齿和离合器插座接合以提供从推进器轴到螺旋桨的非滑行直接驱动，并且当螺旋桨撞击物体时，该离合器齿和离合器插座脱离以允许传动轴旋转而不用螺旋桨旋转。离合器构件被偏压在一起，使得离合器齿在正常的划桨操作期间接合离合器插座。解除离合器所需的扭矩可以通过可调节的保持螺母或使用不同压缩比的弹簧或通过改变离合器齿或离合器插座的特性来调节。优选地，将离合器分离所需的扭矩设定在刚好低于会导致船舶驱动器损坏的水平。

10. 发明授权

US5304079A Supplemental remote mounted marine engine cooling system 失效
标题翻译：补充远程安装的船用发动机冷却系统
公开(公告)号：US5304079A
公开(公告)日：1994-04-19
申请号：US63004
申请日：1993-05-17
申请人： Michael A. Karls
发明人： Michael A. Karls
IPC分类号： B63H20/28 , B63H21/10 , F01P3/20 , F02B61/04
CPC分类号： B63H21/38 , B63H21/10 , F01P3/202 , F02B61/045
摘要： A supplemental remote mounted marine engine cooling system (20) includes a supplemental water pickup (36) mounted to the boat (18), and a flow control valve (38) supplying supplemental cooling water therethrough from the water pickup (36) to the main cooling system (20) when main cooling system water pressure on the downstream side (48) of a check valve (44) in the flow control valve (38) is less than supplemental cooling system water pressure on the upstream side (46) of the check valve (44), and blocking supplemental water flow therethrough when main cooling system water pressure is greater than supplemental cooling system water pressure. The control valve (38) also includes a relief valve (50) between the check valve (44) and the water pickup (36) and discharging excess supplemental cooling water when the check valve (44) is blocking water flow therethrough and supplemental cooling system water pressure is above a given bypass relief threshold. The control valve (38) provides continuous flow therethrough to a first outlet having the check valve (44) and/or a second bypass outlet having the relief valve (50), at high boat speed, to minimize deadhead pressure and minimize reduction in top end boat speed otherwise resulting from the addition of a supplemental water pickup. The water pickup (36) is provided by a tube (106) slicing out a core of water along the underside of the boat hull (108) with minimal drag and turbulence.
摘要翻译：补充的远程安装的船用发动机冷却系统（20）包括安装在船（18）上的辅助水拾取器（36）和流量控制阀（38），其将辅助冷却水从水拾取器（36）供应到主体冷却系统（20），当主冷却系统中流量控制阀（38）中的止回阀（44）的下游侧（48）上的水压小于辅助冷却系统时的上游侧（46）上的水压止回阀（44），当主冷却系统的水压大于补充冷却系统的水压时，阻止补水流过。控制阀（38）还包括在止回阀（44）和水拾取器（36）之间的安全阀（50），并且当止回阀（44）阻止水流过其中并排出补充冷却系统水压高于给定的旁路释放阈值。控制阀（38）提供连续的流动通过其到具有止回阀（44）的第一出口和/或具有安全阀（50）的第二旁路出口，以高的船速度，以最小化死头压力并使顶部的减少最小化否则由于添加补水吸引器而造成结束的船速。水拾取器（36）由管（106）提供，该管（106）以最小的阻力和湍流沿着船体（108）的下侧切出水芯。

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