公开(公告)号：WO1997040297A2

公开(公告)日：1997-10-30

申请号：PCT/US1997002764

申请日：1997-02-25

Applicant: BRIGGS & STRATTON CORPORATION

Inventor： BRIGGS & STRATTON CORPORATION ,  SANTI, John, D.

IPC: F16H55/06

CPC classification number: F16H55/06 ,  B29C33/123 ,  B29D15/00 ,  B29L2015/003

Abstract: A composite gear includes one or more metal stamped plates (18, 20), and two thermoplastic layers (12, 14) disposed on opposite sides of the plates. Apertures (34) are provided in the stamped metal plates so that the molten thermoplastic material may flow through the apertures and anchor the two thermoplastic layers to each other as well as to the metal plates. The composite gear has composite gear teeth (11) which consist of one or more metal gear teeth portions sandwiched between two thermoplastic gear teeth portions. The thermoplastic gear teeth portions extend outwardly from the metal gear teeth portions so that the thermoplastic teeth portions absorb loads under normal operating conditions. Under abnormal conditions such as when an abrupt stop occurs, the thermoplastic portions of the gear teeth are compressed and the higher torque forces resulting from the abnormal condition are absorbed by the metal gear teeth portions. Unique tooling and manufacturing methods are also described to enable the composite gear to be made without overmolding the metal gear teeth portions.

Abstract translation: 复合齿轮包括一个或多个金属冲压板（18,20）和设置在板的相对侧上的两个热塑性层（12,14）。 在冲压的金属板中设置孔（34），使得熔融的热塑性材料可以流过孔并且将两个热塑性层彼此锚固并且固定到金属板。 复合齿轮具有由夹在两个热塑性齿轮齿部之间的一个或多个金属齿轮齿部分组成的复合齿轮齿（11）。 热塑性齿轮齿部分从金属齿轮齿部分向外延伸，使得热塑性齿部分在正常工作条件下吸收载荷。 在发生突然停止的异常条件下，齿轮齿的热塑性部分被压缩，并且由异常状态引起的较高扭矩力被金属齿轮齿部分吸收。 还描述了独特的工具和制造方法，以使复合齿轮能够在不使金属齿轮齿部分重叠的情况下制造。

公开(公告)号：WO1996005719A2

公开(公告)日：1996-02-29

申请号：PCT/US1995002765

申请日：1995-03-02

Applicant: BRIGGS & STRATTON CORPORATION

Inventor： BRIGGS & STRATTON CORPORATION ,  BRUENER, Patrick, J. ,  THARMAN, Paul, A. ,  FIORENZA, John, A., II ,  PFAFF, Joseph, L. ,  DYKSTRA, Richard, A.

IPC: A01D34/74

CPC classification number: A01D34/6806 ,  A01D34/74 ,  A01D34/78 ,  A01D34/81 ,  A01D34/82 ,  A01D34/828 ,  A01D2034/6843 ,  A01D2101/00

Abstract: The improved battery-powered lawnmower includes a safety key (48) that is automatically removed when the removable battery (22) is removed, while at the same time blocking the battery recharger receptacle. The lawnmower also includes a control circuit that shuts off the lawnmower upon the occurrence of one or more of several predetermined conditions, including low battery voltage, the encountering of heavy grass for a period of 3 seconds or more, and high motor current that may occur when the cutting blade is jammed. The cutting blade (264) is designed to move through any debris accumulated between the blade ends and the housing sidewall (284) without sacrificing the lift for needed cutting and mulching. The invention also includes a unique height adjustment assembly for adjusting the height of the chassis, a handle attachment that allows the handle to be positively tightened to the lawnmower chassis, and a telescoping groove (76) for the battery's quick connect/disconnect terminals.

Abstract translation: 一种带有安全钥匙（48）的改进的电池割草机，该安全钥匙（48）在可拆卸电池（22）被移除时同时阻挡电池充电槽而自动移除。 割草机还包括控制电路，该控制电路在发生一个或多个预定条件时切割割草机，包括低电池电压，3秒或更长时间的厚草接触以及过载电流。 在切割刀片拥塞时可能发生的发动机中。 切割刀片264适于移动通过叶片端部和壳体侧壁284之间积聚的所有碎屑，而不牺牲切割和研磨所需的抽吸效果。 本发明还涉及用于调节框架高度的单一组件，将把手牢固地锁定在割草机框架上的把手附接装置以及用于连接/断开端子的锥形凹槽（76）。 快速电池。

公开(公告)号：WO1994002721A1

公开(公告)日：1994-02-03

申请号：PCT/US1993006071

申请日：1993-06-24

Applicant: BRIGGS & STRATTON CORPORATION

Inventor： BRIGGS & STRATTON CORPORATION ,  LAMBERT, John, E. ,  PROCKNOW, David, W. ,  TRAYSER, David, A.

IPC: F02B19/12

CPC classification number: F02B43/00 ,  F02B1/04 ,  F02B19/12 ,  F02B23/08 ,  F02B65/00 ,  F02B2275/34 ,  F05C2201/046 ,  Y02T10/125 ,  Y02T10/32

Abstract: A small bore internal combustion engine having a four-stroke operating cycle which is adapted to function with natural gas and other gaseous fuels and which is particularly useful with residential heat pump assemblies with maximum life expectancy, high thermal efficiency, and low exhaust gas emissions, wherein provision is made for assembling the engine in a compact heat pump system with a low operating noise level and an extended engine maintenance interval.

Abstract translation: 具有四冲程操作循环的小口径内燃机，其适用于天然气和其它气体燃料的功能，并且其特别适用于具有最长使用寿命，高热效率和低废气排放的住宅热泵组件， 其中提供了将发动机组装在具有低操作噪音水平和延长的发动机维护间隔的紧凑型热泵系统中。

公开(公告)号：WO1997036095A1

公开(公告)日：1997-10-02

申请号：PCT/US1997002746

申请日：1997-02-24

Applicant: BRIGGS & STRATTON CORPORATION

Inventor： BRIGGS & STRATTON CORPORATION ,  CAYA, Donald, M. ,  BARNHARDT, Thomas, L.

IPC: F01L01/18

CPC classification number: F01L1/183 ,  F01L1/46 ,  F02B63/02 ,  F02B2075/027 ,  F02B2275/34 ,  F02F7/006

Abstract: The internal combustion engine includes a cast cylinder head having as-cast alignment ribs (26, 28) that align a squared-off fulcrum (56) in the rocker assembly. The rocker arm (42) also has two substantially flat surfaces that engage the planar sides of the fulcrum (56) to minimize lateral movement of the rocker arm (42). The fulcrum (56) is received between the cast alignment ribs (26, 28). The ribs are biased from a major axis to insure proper fulcrum alignment during assembly without the use of a jig.

Abstract translation: 内燃机包括铸造气缸盖，其具有对准摇摆组件中的方形支点（56）的铸造对准肋（26,28）。 摇臂（42）还具有两个基本平坦的表面，其接合支点（56）的平面侧，以最小化摇臂（42）的横向移动。 支点（56）被接收在铸造对准肋（26,28）之间。 肋条从长轴偏置，以确保组装过程中的适当的支点对准，而不使用夹具。

公开(公告)号：WO1997002415A1

公开(公告)日：1997-01-23

申请号：PCT/US1996005981

申请日：1996-04-30

Applicant: BRIGGS & STRATTON CORPORATION

Inventor： BRIGGS & STRATTON CORPORATION ,  ACKER, Richard, M. ,  BRUNELLI, Brian, T. ,  KAUTZER, Douglas, H.

IPC: F02B75/00

CPC classification number: F02B63/04 ,  F02B63/00 ,  F02B75/007 ,  F02B75/16 ,  F02B2063/045 ,  F02F7/0068

Abstract: An engine housing for a vertical crankshaft (12) engine may be directly mounted to a standard generator, pump, or other device without modifying the device housing. The engine housing has a plurality of raised mounting bosses (22), that are used to attach the device housing to the engine housing. If the engine housing has an oil slinger well (28), the raised mounting bosses (22) extend from the engine housing surface a sufficient distance to provide clearance for the oil slinger well (28). The engine housing also has a pilot that either receives an adapter ring (56) or a portion of a device pilot (54) to maintain the concentricity between the engine crankshaft (12) and the device shaft (30), as well as the proper alignment between the engine housing and the device housing.

Abstract translation: 用于竖直曲轴（12）发动机的发动机壳体可以直接安装到标准发电机，泵或其他装置，而不改变装置壳体。 发动机壳体具有多个凸起的安装凸起（22），用于将装置壳体附接到发动机壳体。 如果发动机壳体具有抛油环（28），则凸起的安装凸台（22）从发动机壳体表面延伸足够的距离以提供抛油环（28）的间隙。 发动机壳体还具有可以接收适配环（56）或设备导向件（54）的一部分以维持发动机曲轴（12）和装置轴（30）之间的同心度的导向装置，以及适当的 发动机壳体和设备壳体之间的对准。

公开(公告)号：WO1997001699A1

公开(公告)日：1997-01-16

申请号：PCT/US1996004103

申请日：1996-03-26

Applicant: BRIGGS & STRATTON CORPORATION

Inventor： BRIGGS & STRATTON CORPORATION ,  GUND, Heinz, K.

IPC: F02D09/02

CPC classification number: F02D9/02 ,  F02D2009/0208 ,  F02D2009/0216 ,  F02D2009/0218

Abstract: The air vane governor has improved speed droop characteristics under no load and light load conditions to prevent engine stumbling. The air vane governor includes a primary spring (50) and a secondary spring (64) both springs oppose the movement of the air vane (30) at no load and light load conditions. At increased load, the secondary spring (64) drops out. The tension on both springs (50, 64) is adjustable. The added spring force of the secondary spring (64) makes the governor less sensitive at no load and light load, resulting in more even operation, particularly during engine warmup.

Abstract translation: 空气调节器在无负载和轻负载条件下具有改善的速度下垂特性，以防止发动机绊倒。 气动叶片调节器包括主弹簧（50）和次弹簧（64），两个弹簧在无负载和轻负载条件下与空气叶片（30）的运动相对。 在增加的负载下，次级弹簧（64）脱落。 两个弹簧（50,64）上的张力是可调节的。 次级弹簧（64）的增加的弹簧力使得调速器在空载和轻负载下不太敏感，导致更均匀的操作，特别是在发动机预热期间。

公开(公告)号：WO1998030788A1

公开(公告)日：1998-07-16

申请号：PCT/US1997023042

申请日：1997-12-11

Applicant: BRIGGS & STRATTON CORPORATION

Inventor： BRIGGS & STRATTON CORPORATION ,  GRACYALNY, Gary, J.

IPC: F01L13/08

CPC classification number: F01L13/085

Abstract: A centrifugally-responsive compression release apparatus relieves compression in more than one cylinder of an internal combustion engine during starting. The compression release apparatus utilizes a centrifugally-responsive, flyweight (28), a single shaft (20) operable by the flyweight (28), and one or more lift members movable by the shaft (20) and engageable with one or more valve operating devices. The compression release appparatus may employ a single lift member that is engageable with two valve operating devices upon rotation of the shaft, or alternatively, a pair of lift members each engageable with a distinct valve operating device. Thus, the compression release apparatus is particularly adaptable to reducing compression in two cylinders of a V-twin engine, but may be adapted to reducing compression in an engine having more than two cylinders.

Abstract translation: 离心响应式压缩释放装置在启动期间减轻内燃机的多于一个气缸的压缩。 压缩释放装置利用离心响应的飞重（28），由飞重（28）可操作的单个轴（20）和可由轴（20）移动的一个或多个提升构件，并可与一个或多个阀操作 设备。 压缩释放装置可以采用单个提升构件，该提升构件可以在轴的旋转时与两个气门操作装置接合，或者替代地，一对提升构件，每个提升构件可与不同的气门操作装置接合。 因此，压缩释放装置特别适用于减小V型双发动机的两个气缸中的压缩，但是可以适于减少具有两个以上气缸的发动机的压缩。

公开(公告)号：WO1997037120A1

公开(公告)日：1997-10-09

申请号：PCT/US1997000684

申请日：1997-01-22

Applicant: BRIGGS & STRATTON CORPORATION

Inventor： BRIGGS & STRATTON CORPORATION ,  RASMUSSEN, Jerome ,  SANTI, John, D. ,  GUNTLY, Thomas, G.

IPC: F02M07/02

CPC classification number: F02M19/03 ,  F02M7/02

Abstract: A carburetor including a carburetor body (22) having a throat (24) extending from an intake (26) to a discharge (28), and a fuel nozzle (32) positioned within the throat and including an upstream orifice facing substantially upstream and a downstream orifice facing substantially downstream. A surface area of the upstream orifice is smaller than a surface area of the downstream orifice. If more than one orifice is provided on each side, a combined surface area of all upstream orifices is less than a combined surface area of all downstream orifices. The upstream orifice is positioned closer to the carburetor body than any of the downstream orifices. The downstream orifice includes a plurality of downstream orifices that have an average position that is centered with respect to the throat.

Abstract translation: 一种化油器，包括具有从进气口（26）延伸到排出口（28）的喉部（24）的化油器本体（22）和位于喉部内的燃料喷嘴（32），并且包括基本上游的上游孔口和 下游孔面向大致下游。 上游孔的表面积小于下游孔的表面积。 如果在每一侧设置多于一个孔，则所有上游孔的组合表面积小于所有下游孔的组合表面积。 上游孔位于比任何下游孔更靠近化油器体的位置。 下游孔包括多个下游孔，其具有相对于喉部居中的平均位置。

公开(公告)号：WO1997032121A1

公开(公告)日：1997-09-04

申请号：PCT/US1996018594

申请日：1996-11-20

Applicant: BRIGGS & STRATTON CORPORATION

Inventor： BRIGGS & STRATTON CORPORATION ,  GONNERING, John, B.

IPC: F02D31/00

CPC classification number: F02D31/002

Abstract: The engine governor outputs a pulse width modulated actuator control signal at two or more frequencies to improve actuator performance. In one embodiment, the control signal has a frequency of about 60 to 70 hertz when the throttle is nearly closed, and switches to a frequency of between 5 to 30 hertz once the throttle is between 50 to 75 percent open. In a second embodiment, the frequency of the actuator control signal decreases in a linear manner from 60 to 70 hertz to between 5 to 30 hertz as the throttle is opened from a closed throttle position to wide open throttle. A decrease in frequency with increased throttle opening provides additional control signal off time, thereby allowing the magnetic field in the actuator to sufficiently dissipate for proper dithering action.

Abstract translation: 发动机调速器以两个或更多个频率输出脉宽调制致动器控制信号，以提高执行器性能。 在一个实施例中，当节气门几乎闭合时，控制信号具有约60至70赫兹的频率，并且一旦节流阀打开50％至75％之间，则切换到5至30赫兹之间的频率。 在第二实施例中，当节气门从关闭的节气门位置打开到大开的节气门时，致动器控制信号的频率以线性方式从60至70赫兹减小到5至30赫兹。 随着节气门开度的增加，频率的降低提供了额外的控制信号关闭时间，从而允许致动器中的磁场充分消散以进行适当的抖动动作。

公开(公告)号：WO1997027389A1

公开(公告)日：1997-07-31

申请号：PCT/US1996019916

申请日：1996-12-09

Applicant: BRIGGS & STRATTON CORPORATION

Inventor： BRIGGS & STRATTON CORPORATION ,  OSWALD, Denis, A. ,  EMMER, Mark, W. ,  EDMONDS, Daniel, W. ,  JOHNSON, Robert, S.

IPC: F02F01/32

CPC classification number: F02F1/38 ,  F02B2075/027 ,  F02B2275/34 ,  F02F1/243 ,  F02F1/32 ,  F02F2001/247 ,  F02F2200/06

Abstract: The cylinder head assembly (10) includes a cast member (12), and a substantially planar member (14) that is affixed to an upper end of the cast member (12). The substantially planar member (14) includes apertures (74, 76) to anchor the intake and exhaust rocker studs (79), apertures that receive the intake and exhaust valve, and apertures that receive the push rod guides. The substantially planar member also has spring locators for the intake and exhaust valve (32) return springs. The cast member (12) is affixed to the engine cylinder (17), and includes cast intake and exhaust manifolds (26), bosses for receiving the intake and exhaust valves (32), a cast pocket for receiving the intake and exhaust push rods (72), and air cooling fins (68). A head cover (16) is disposed on an opposite side of the planar member (14). The invention eliminates the need for two cast components.

Abstract translation: 气缸盖组件（10）包括铸造构件（12）和固定到铸件（12）的上端的基本平坦的构件（14）。 基本平坦的构件（14）包括用于锚固进入和排出摇杆（79）的孔（74,76），容纳进气门和排气门的孔以及容纳推杆导向件的孔。 基本平坦的构件还具有用于进气和排气阀（32）复位弹簧的弹簧定位器。 铸造构件（12）固定在发动机气缸（17）上，并且包括铸造进气和排气歧管（26），用于接收进气门和排气门的凸起（32），用于接收进气和排气推杆 （72）和空气冷却翅片（68）。 头盖（16）设置在平面构件（14）的相对侧上。 本发明消除了对两个铸件的需要。