公开(公告)号：WO1990012899A1

公开(公告)日：1990-11-01

申请号：PCT/US1990001971

申请日：1990-04-11

Applicant: BRUNSWICK CORPORATION

Inventor： BRUNSWICK CORPORATION ,  DONAHUE, Raymond, J. ,  HESTERBERG, William, G. ,  CLEARY, Terrance, M.

IPC: C22C21/02

CPC classification number: C22C21/02

Abstract: A hypereutectic aluminum silicon alloy having an improved distribution of primary silicon in the microstructure. The alloy is composed by weight of 20 % to 30 % silicon, 0.4 % to 1.6 % magnesium, up to 1.4 % iron, up to 0.3 % manganese, 0.25 % copper maximum and the balance aluminum. With this composition the aluminum silicon alloy system exhibits near zero shrinkage on solidification, a similarity of the liquid aluminum-silicon alloy and the primary silicon during the early stages of primary silicon precipitation, and thereby minimizes floatation of the precipitated primary silicon and to provide a more uniform distribution of the primary silicon in the microstructure and increase the wear resistant characteristics of the alloy.

公开(公告)号：WO1990005839A1

公开(公告)日：1990-05-31

申请号：PCT/US1989005365

申请日：1989-11-21

Applicant: BRUNSWICK CORPORATION

Inventor： BRUNSWICK CORPORATION ,  MEISENBURG, Gary, L.

IPC: F01M11/04

CPC classification number: F01M11/0408 ,  B63J4/00 ,  F16N2210/06

Abstract: A fluid flow tube (9) is provided which extends from the lower portion of the engine oil pan (7) to a point on the boat transom (2) below the pan. The upper end portion of the tube is connected through a control valve (10) which communicates with the pan interior. The lower or discharge tube end portion is connected through a fitting (11) extending through the transom. A removable plug (17) is associated with the fitting and, when removed, permits oil to drain out through the transom and into an oil collection receptacle when the control valve is opened.

公开(公告)号：WO1990003509A1

公开(公告)日：1990-04-05

申请号：PCT/US1989004056

申请日：1989-09-19

Applicant: BRUNSWICK CORPORATION

Inventor： BRUNSWICK CORPORATION ,  BETHEL, Steven, J. ,  BAUMHARDT, Robert, J.

IPC: F02F01/18

CPC classification number: F16J1/001 ,  F02B2075/025 ,  F02F1/183

Abstract: In a two-cycle internal combustion engine (10), the piston (20) has an outer peripheral oval shape (58) with a minor axis (62) offset from the centerline (54) of the wrist pin (26) towards a line (56) through the intake and exhaust ports (16 and 18). The outer peripheral shape of the piston also has increasing ovality, (Figs. 8, 9) from at least the wrist pin (26) upwardly to at least the piston rings (22, 24).

公开(公告)号：WO1990002477A1

公开(公告)日：1990-03-08

申请号：PCT/US1989003391

申请日：1989-08-08

Applicant: BRUNSWICK CORPORATION

Inventor： BRUNSWICK CORPORATION ,  FITZNER, Arthur, O.

IPC: H05K09/00

CPC classification number: F02P7/025 ,  F02P11/00 ,  H04B15/025

Abstract: A system and method for its implementation for suppressing RFI effects on an electronic control module (10) enclosed in a metal housing (12) includes inserting a plurality of high frequency shunts (16, 26) in the wires (14) attached to the module (10) through the housing (12). The shunts (16, 20), comprising by-passing capacitors (21, 30) include one capacitor (21) on the incoming wire (14) disposed closely adjacent the housing (12) and grounded thereto and another capacitor (30) on each wire (14) disposed closely adjacent the connection of the wire (14) to the active circuit (11) of the module (10) and grounded to the circuit ground network (27). The housing (12) includes a direct connection (20) to ground and the ground network (27) for the electronic module (10) has a single ground connection (35) to the housing (12).

公开(公告)号：WO1990000672A1

公开(公告)日：1990-01-25

申请号：PCT/US1989002993

申请日：1989-07-10

Applicant: BRUNSWICK CORPORATION

Inventor： BRUNSWICK CORPORATION ,  SLATTERY, Gordon, C.

IPC: F01M03/00

CPC classification number: F01M3/00 ,  F02B61/045 ,  F02B2075/025

Abstract: A marine propulsion system (200) having an outboard two cycle internal combustion engine (212) has a modified oil-fuel mixer (2, 602) preventing excess oil in the mixture as fuel runs out. The modified mixer includes an auxiliary chamber (602) having a fuel inlet (604) receiving fuel from the working chamber (22) of the mixer below a given level, a vapor inlet (606) receiving fuel vapor or air from the working chamber above the given level, and a vapor outlet (608) exhausting the vapor. When the fuel tank (5) runs dry, air is drawn through a transfer passage (38) in the mixer to one side of the movable diaphragm (24), and fuel pump (11) suction is applied to both sides of the diaphragm to halt movement thereof and stop further pumping of oil from the oil tank (7) to the engine. The invention also enhances accuracy of the oil-fuel mixture ratio during normal operation.

公开(公告)号：WO1989009163A1

公开(公告)日：1989-10-05

申请号：PCT/US1989000609

申请日：1989-02-15

Applicant: BRUNSWICK CORPORATION

Inventor： BRUNSWICK CORPORATION ,  MEISENBURG, Gary, L.

IPC: B63H21/26

CPC classification number: B63H20/002

Abstract: A marine drive (2) having a lower gearcase (4) with a torpedo housing (10) having an internal lubricant-containing cavity (26) has a removable drain plug (50) and drain plug hole (52) at a location away from the exterior hydrodynamic surface (46) of the torpedo housing along which water flows, to prevent cavitation burns on the torpedo housing and the propeller (24), and to aid in eliminating propeller ventilation.

公开(公告)号：WO1989005916A1

公开(公告)日：1989-06-29

申请号：PCT/US1988004536

申请日：1988-12-19

Applicant: BRUNSWICK CORPORATION

Inventor： BRUNSWICK CORPORATION ,  DAVIS, James, A.

IPC: F02P15/02

CPC classification number: H01T13/462 ,  F02B2075/027 ,  F02P15/02 ,  F02P15/08

Abstract: A multipoint spark ignition system for an internal combustion engine. The head of each cylinder of the engine is provided with at least three openings, the axes of which intersect within the cylinder. A spark plug is threaded within each opening, and each spark plug includes a single electrode. The inner end of each electrode carries a thin metallic, laterally extending disc, and the peripheral edges of the discs are spaced apart to provide spark gaps. A first spark plug of the series is connected to the ignition coil of the engine while the electrode of the last spark plug in the series is connected to ground and the electrodes of the intermediate spark plugs are capacitively loaded.

公开(公告)号：WO1989004426A1

公开(公告)日：1989-05-18

申请号：PCT/US1988003925

申请日：1988-11-10

Applicant: BRUNSWICK CORPORATION

Inventor： BRUNSWICK CORPORATION ,  FITZNER, Arthur, O. ,  HARMER, William, D.

IPC: F02P01/08

CPC classification number: F02P7/067 ,  F02P7/0775 ,  G01D5/2457 ,  G01M15/06 ,  G01P3/465

Abstract: An annular permanent magnet rotor (8) is mounted around and fixed to a crankshaft (4) of an internal combustion engine (2) and has a plurality of circumferentially spaced magnetic poles (14) of sequentially alternating north-south polarity type, and a pole (18) reversed out of the alternating sequence. A first fixed stator (24) is provided by an annular ring concentric to the rotor (8) and has a plurality of poles (26) for magnetic flux coupling with the permanent magnet rotor poles (14). A second fixed stator (48) is axially spaced from the first stator (24) and has a pair of poles (50, 52) for magnetic flux coupling with the rotor (8). A first sensor coil (40) around the first stator (24) outputs a timing angle signal. Processing circuitry produces a series of digital pulses having ANGLE-defining edges occurring at fixed angular increments of crankshaft rotation. A second sensor coil (56) around the second stator (48) outputs an advance warning signal that a specific REFERENCE ANGLE-defining edge is about to appear in the series of digital pulses produced from the first sensor coil's output.

公开(公告)号：WO1989002326A1

公开(公告)日：1989-03-23

申请号：PCT/US1988002864

申请日：1988-08-19

Applicant: BRUNSWICK CORPORATION

Inventor： BRUNSWICK CORPORATION ,  HESTERBERG, William, G. ,  DONAHUE, Raymond, J. ,  CLEARY, Terrance, M.

IPC: B22D21/04

CPC classification number: B22D21/007 ,  B22C9/046

Abstract: A method of casting utilizing an evaporable foam system with a hypereutectic aluminum silicon alloy. The alloy is composed by weight of 16 % to 19 % silicon, 0.4 % to 0.7 % magnesium, up to 1.4 % iron, up to 0.3 % manganese, up to 0.37 % copper and the balance aluminum. The molten alloy is introduced into a mold in contact with an evaporable foam pattern formed of polystyrene, or the like. The heat of the molten alloy will decompose and vaporize the pattern and the vapor will enter the interstices of the surrounding sand, while the molten alloy will fill the void caused by the vaporization of the pattern. The heat of crystallization caused by precipitation of the silicon on solidifaction of the alloy will temporarily slow the solidification rate of the alloy, thus increasing the time for elimination of pattern residue vapors from the molten alloy.

Abstract translation: 一种使用具有过共晶铝硅合金的可蒸发泡沫体系的铸造方法。 该合金由16％至19％的硅，0.4％至0.7％的镁，至多1.4％的铁，至多0.3％的锰，至多0.37％的铜和余量的铝组成。 将熔融合金引入与由聚苯乙烯等形成的可蒸发泡沫图案接触的模具中。 熔融合金的热量将分解和汽化图案，并且蒸汽将进入周围砂的空隙，而熔融合金将填充由图案蒸发引起的空隙。 由于硅沉淀引起的结晶热会导致合金的固化速度暂时降低，从而增加了从熔融合金中去除图案残留蒸气的时间。

公开(公告)号：WO1988009428A1

公开(公告)日：1988-12-01

申请号：PCT/US1988001673

申请日：1988-05-20

Applicant: BRUNSWICK CORPORATION

Inventor： BRUNSWICK CORPORATION ,  WINBERG, Arvid, E.

IPC: F01N07/12

CPC classification number: F01N13/004 ,  F01N2590/02

Abstract: A marine engine exhaust muffler assembly (8) includes inlet and outlet members (10, 11), the axes (13, 14) of which are offset from each other. A muffler housing (12) is disposed between the inlet and outlet members (10, 11) and forms a chamber (15) having disposed therein an annular multi-layered cartridge (23), and with the layers having a multiplicity of perforations (27) therein for passage of exhaust gases and spent engine cooling water therethrough. The water assists in keeping the muffler clean. An imperforate arcuate blocking plate (31) is nested within the lower portionof the cartridge (23) to permit accumulation of the spent engine cooling water within the cartridge to aid in noise reduction at certain engine speeds. The blocking plate (31) is provided with a relief opening means for assisting in water drainage upon engine shutoff.