公开(公告)号：WO1998030819A2

公开(公告)日：1998-07-16

申请号：PCT/US1997024033

申请日：1997-12-29

Applicant: GENERAC CORPORATION

Inventor： GENERAC CORPORATION ,  HOENISCH, Herb ,  KERN, Robert, D. ,  RUEHLOW, Gerald, C. ,  SODEMANN, Wes ,  YANG, Fred

IPC: F16K00/00

CPC classification number: B08B3/026 ,  F04B49/03 ,  F04B2205/16 ,  Y10T137/7929 ,  Y10T137/7937

Abstract: Disclosed is a flow control valve (10) for a pressure washer (11) powered by a prime mover (27), e.g., an electric motor (27a) or an internal combustion engine (27b). The valve (10) has a housing (33) containing a piston assembly (34) and the assembly (34) has a mechanism (96) coupled to it for controlling prime mover power. The piston assembly (34) includes a first piston (39) sealing against the housing (33) and dividing the housing interior into two chambers (35, 37). Such first piston (39) is spring-biased to a first position during periods when no output flow is being demanded from the washer (11). The assembly (34) also has a second piston (59) spring-biased to seal against the first piston (39) during periods of no flow. When flow is demanded by opening the nozzle (19), the pressure in the second chamber (37) diminishes. And when the difference between the pressure in the second chamber (37) and that in the first chamber (35) exceeds a predetermined value, the assembly (34) shifts to a second position, causing the mechanism (96) to actuate the prime mover (27).

Abstract translation: 公开了一种用于由例如电动机（27a）或内燃机（27b）的原动机（27）供电的压力清洗器（11）的流量控制阀（10）。 阀（10）具有包含活塞组件（34）的壳体（33），并且组件（34）具有联接到其上的用于控制原动机动力的机构（96）。 活塞组件（34）包括密封抵靠壳体（33）并将壳体内部分成两个腔室（35,37）的第一活塞（39）。 在不需要从垫圈（11）输出流量的期间，这样的第一活塞（39）被弹簧偏压到第一位置。 组件（34）还具有弹簧偏置以在不流动的时段期间密封抵靠第一活塞（39）的第二活塞（59）。 当通过打开喷嘴（19）要求流动时，第二腔室（37）中的压力减小。 并且当第二室（37）中的压力与第一室（35）中的压力差超过预定值时，组件（34）移动到第二位置，使机构（96）致动原动机 （27）。

公开(公告)号：WO1998025049A1

公开(公告)日：1998-06-11

申请号：PCT/US1997022212

申请日：1997-12-02

Applicant: GENERAC CORPORATION

Inventor： GENERAC CORPORATION ,  KERN, Robert, D. ,  RUEHLOW, Gerald, C.

IPC: F16H01/02

CPC classification number: F02B63/04 ,  F02B75/007 ,  F16H1/08 ,  H02K7/116 ,  Y10T74/19642 ,  Y10T74/19647

Abstract: In an engine-generator set (10), the generator (13) has a first shaft (25) driving a generator armature (27) and also has a second shaft (19) in spaced relationship to the first shaft (25). The second shaft (19) is coupled to the engine (11) and there is a respective gear (21 or 23) on each of the shafts (19, 25) which provides a "step-down" gear reduction for powering the generator (13) at, e.g., 1800 rpm, where the engine speed is greater than 1800 rpm. Preferably, the engine (11) is coupled to the generator armature shaft (25) through a torsional coupling (17) for isolating engine vibration from the generator (13).

Abstract translation: 在发动机发电机组（10）中，发电机（13）具有驱动发电机电枢（27）的第一轴（25），并且还具有与第一轴（25）间隔开的第二轴（19）。 第二轴（19）联接到发动机（11），并且在每个轴（19,25）上具有相应的齿轮（21或23），其提供用于为发电机供电的“降压”齿轮减速 13），例如1800rpm，其中发动机转速大于1800rpm。 优选地，发动机（11）通过用于将发动机振动与发电机（13）隔离的扭转联轴器（17）联接到发电机电枢轴（25）。

公开(公告)号：WO1998030785A1

公开(公告)日：1998-07-16

申请号：PCT/US1997024032

申请日：1997-12-29

Applicant: GENERAC CORPORATION

Inventor： GENERAC CORPORATION ,  BAYER, Don ,  HOENISCH, Herb ,  KERN, Robert, D. ,  RUEHLOW, Gerald, C. ,  SODEMANN, Wes

IPC: F01B03/00

CPC classification number: F04B53/164 ,  B23P11/025 ,  F04B1/124

Abstract: Disclosed is a piston (10) for a water pump (15), e.g., a pressure washer pump. The piston (10) includes a piston body (49) and a piston head (37, 61, 83 or 87) and in the improvement, the piston body (49) is solid, homogeneous ceramic. That is, the piston body (49) has a generally cylindrical surface (59) and the body (49) is circumscribed by the surface (59) and is homogeneous ceramic. A method for making a piston (10) for a water pump (15) includes the steps of providing a piston body (49) made of a ceramic material, and making a piston head (37, 61 or 83) of steel and having a pocket (67) formed therein. The head (37, 61 or 83) is heated, the pocket (67) and the body (49) are engaged in overlapping relationship and the head (37, 61 or 83) is allowed to cool and "shrink-fit" to the piston body (49). In specific embodiments, the piston head (37 or 61) is formed to have a relief groove (79) circumscribing the pocket (67) for reducing compression forces resulting from such cooling.

Abstract translation: 公开了一种用于水泵（15）的活塞（10），例如压力清洗泵。 活塞（10）包括活塞主体（49）和活塞头（37,61,83或87），并且在改进中，活塞体（49）是固体均匀的陶瓷。 也就是说，活塞体（49）具有大致圆柱形的表面（59），并且主体（49）被表面（59）外接，并且是均匀的陶瓷。 一种制造用于水泵（15）的活塞（10）的方法包括以下步骤：提供由陶瓷材料制成的活塞体（49），并制成钢的活塞头（37,61或83），并具有 口袋（67）形成在其中。 头部（37,61或83）被加热，口袋（67）和主体（49）以重叠关系接合，头部（37,61或83）被允许冷却和“收缩配合”到 活塞体（49）。 在具体实施例中，活塞头（37或61）形成为具有围绕口袋（67）的释放槽（79），用于减小由此产生的压缩力。

公开(公告)号：WO1993026082A1

公开(公告)日：1993-12-23

申请号：PCT/US1993005638

申请日：1993-06-11

Applicant: GENERAC CORPORATION

Inventor： GENERAC CORPORATION ,  KERN, Robert ,  RUEHLOW, Gerald ,  MCLEAN, Graham ,  WHEELEY, Michael ,  WEDEL, Frank ,  KASTNER, Mark

IPC: H02P09/14

CPC classification number: H02P9/04 ,  F02B63/04 ,  F02B63/042

Abstract: An engine-driven generator (10) includes an internal combustion engine (12), a permanent magnet alternator (14) and an AC to AC converter (16). The output frequency and voltage of the permanent magnet alternator (14) are largely dependent on engine speed and the alternator load (26). The AC to AC converter (16) converts the speed-dependent alternating current developed by the alternator (14) to another alternating current whose frequency and voltage are largely independent of engine speed. Voltage regulation is provided by varying the engine speed in accordance with the load current. Frequency regulation is provided by frequency dividing the alternator output by an integer divisor that varies in accordance with engine speed. Additional voltage regulation is provided by deleting selected cycles of the alternator output current as needed to maintain the RMS output voltage within predetermined limits.

Abstract translation: 发动机驱动的发电机（10）包括内燃机（12），永磁式交流发电机（14）和AC至AC转换器（16）。 永磁式交流发电机（14）的输出频率和电压在很大程度上取决于发动机转速和交流发电机负载（26）。 AC到AC转换器（16）将由交流发电机（14）产生的与速度相关的交流电转换成其频率和电压很大程度上与发动机转速无关的另一交流电。 通过根据负载电流改变发动机转速来提供电压调节。 通过将交流发电机输出分频除以发动机转速变化的整数除数来提供频率调节。 通过根据需要删除交流发电机输出电流的选定周期来提供额外的电压调节，以将RMS输出电压维持在预定限度内。

公开(公告)号：WO1998030943A1

公开(公告)日：1998-07-16

申请号：PCT/US1997024034

申请日：1997-12-29

Applicant: GENERAC CORPORATION

Inventor： GENERAC CORPORATION ,  GILPATRICK, Richard, J. ,  SODEMANN, Wes

IPC: G05D11/00

CPC classification number: F04B17/06 ,  F04B17/05 ,  F04B49/24 ,  Y10T137/0368 ,  Y10T137/2584 ,  Y10T137/2587 ,  Y10T137/2599 ,  Y10T137/2617 ,  Y10T137/262 ,  Y10T137/7905 ,  Y10T137/791

Abstract: A flow-responsive diverting valve (10) having a valving chamber (45), a fluid inlet (49) and two fluid outlets (43, 81). A magnet (55) is fixed on the valve body (25) and when fluid flows into the inlet (49) at the low flow rate, a valving device (51) is restrained by the magnet (55). When fluid flows into the inlet (49) at a higher flow rate, the device (51) closes the first outlet (43) and diverts water to the second outlet (81).

Abstract translation: 具有阀室（45），流体入口（49）和两个流体出口（43,81）的流量响应转向阀（10）。 磁体（55）固定在阀体（25）上，并且当流体以低流量流入入口（49）时，阀装置（51）被磁体（55）约束。 当流体以更高的流速流入入口（49）时，装置（51）关闭第一出口（43）并将水转移到第二出口（81）。

公开(公告)号：WO1993026077A1

公开(公告)日：1993-12-23

申请号：PCT/US1993005525

申请日：1993-06-10

Applicant: GENERAC CORPORATION

Inventor： GENERAC CORPORATION ,  KERN, Robert ,  RUEHLOW, Gerald ,  MCLEAN, Graham ,  WEDEL, Frank ,  CERNEY, Dennis

IPC: H02K37/00

CPC classification number: H02K21/222 ,  H02K1/16 ,  H02K15/16 ,  H02K2201/09 ,  Y10T29/49009 ,  Y10T29/49012

Abstract: A permanent magnet alternator (14) includes a stator core (26) having outwardly projecting teeth (32) and further includes a plurality of permanent magnets (10) surrounding the stator core (26). The stator core (26) is formed from a continuous, helically wound metallic strip (44) having a plurality of teeth (32) defined between slots formed in one edge thereof. The stator core (26) is formed by winding the strip (44) edgewise around a cylindrical mandrel. To facilitate winding and avoid distortion, arcuate regions, conforming to the curve of the mandrel, are formed in the strip (44) opposite the teeth (32).

Abstract translation: 永磁式交流发电机（14）包括具有向外突出的齿（32）的定子铁芯（26），并且还包括围绕定子铁心（26）的多个永磁体（10）。 定子芯（26）由连续的螺旋缠绕的金属条（44）形成，金属条（44）具有限定在其一个边缘中形成的槽之间的多个齿（32）。 定子芯（26）通过围绕圆柱形心轴缠绕条带（44）而形成。 为了方便卷绕并避免变形，在与齿（32）相对的条带（44）中形成符合心轴曲线的弧形区域。

公开(公告)号：WO1993025808A1

公开(公告)日：1993-12-23

申请号：PCT/US1993005637

申请日：1993-06-11

Applicant: GENERAC CORPORATION

Inventor： GENERAC CORPORATION ,  KERN, Robert ,  RUEHLOW, Gerald ,  HOENISCH, Herb ,  SARDER, Mark

IPC: F02D11/10

CPC classification number: F01M1/02 ,  F01L1/46 ,  F01L13/085 ,  F01M1/16 ,  F02B63/00 ,  F02B2075/027 ,  F02B2275/34 ,  F02D2009/0261 ,  Y10T74/2101

Abstract: An internal combustion engine (12) for portable power generating equipment includes a camshaft assembly (48) having an integral oil pump (56) at one end thereof. The camshaft (50), which is preferably formed of two dissimilar materials, is mounted for axial movement in response to increased oil pressure so as to provide automatic oil pressure regulation. An automatic compression release system (76) is provided for reducing engine compression at low speeds to reduce cranking resistance during starting. Speed control is provided by a stepper motor (20) coupled through a cam (28) to the engine throttle (19). The cam (28) is shaped so as to counteract the non-linear relationship between throttle position and engine power and speed so as to provide a desired relationship between the position of the stepper motor (20) and the engine power and speed.

Abstract translation: 一种用于便携式发电设备的内燃机（12）包括在其一端具有一体式油泵（56）的凸轮轴组件（48）。 优选地由两种不同材料形成的凸轮轴（50）被安装成响应于增加的油压而轴向移动，以便提供自动油压调节。 提供了一种自动压缩释放系统（76），用于在起动期间减小发动机在低速下的压缩，以减少起动阻力。 由通过凸轮（28）联接到发动机油门（19）的步进马达（20）提供速度控制。 凸轮28被成形为抵消节气门位置和发动机功率和速度之间的非线性关系，从而在步进电动机20的位置与发动机功率和速度之间提供期望的关系。