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    • 6. 发明授权
    • Marine engine cooling systems and methods
    • US06682380B1
    • 2004-01-27
    • US09567539
    • 2000-05-05
    • Gregory D. IrwinDavid F. HamanPeter E. LucierRobert L. Bastrup
    • Gregory D. IrwinDavid F. HamanPeter E. LucierRobert L. Bastrup
    • B63H2110
    • F01P7/16B63H20/285F01P3/02F01P2003/021F01P2003/024F01P2003/028F01P2025/50F01P2050/04F02B61/045F02B75/22F02B2075/1824
    • The present invention, in one aspect, is a cooling system for a marine engine and includes cylinder cooling jackets, cylinder head cooling jackets, and thermostatic and pressure controls which facilitate safely operating the engine with low water flow rates. In one specific embodiment, the cooling system is employed in a marine engine including a V-type cylinder block with two cylinder banks and a valley between the banks. Each cylinder bank includes a plurality of cylinder bores (e.g., each cylinder bank includes three cylinder bores in a six cylinder engine), and respective exhaust ducts extend from and are in flow communication with each cylinder bore. Respective coolant flow paths extend from the valley to a section of each cylinder bore water jacket adjacent each cylinder exhaust duct. Specifically, water is provided from the valley to adjacent each exhaust duct in the cylinder banks. Each cylinder bore water jacket includes an outlet at an upper portion of each said cylinder bank. A water flow path extends from each cylinder bore water jacket outlet to a respective cylinder head water jacket. Variable thermostats are in flow communication with each cylinder bore water jacket, and each thermostat is in flow communication with a dump. Each flow path through the respective thermostats is in parallel with a respective cylinder head. The thermostats allow cooling of the cylinders to be thermostatically controlled. Specifically, the amount of water supplied to the cylinder head cooling jackets depends on the temperature condition at the thermostats. The cylinder head water jackets are in flow communication with a parallel connected blow off valve and thermostat. The blow off valve and thermostat are in flow communication with the water dump. When the blow off valve opens, maximum cooling is provided in that water flows unrestricted from the valley, to the cylinder cooling jackets, to the cylinder head cooling jackets, through the blow off valve to the dump.
    • 9. 发明授权
    • Fuel delivery system using two pressure regulators with a single electric fuel pump
    • 燃油输送系统使用两个压力调节器与单个电动燃油泵
    • US06453877B1
    • 2002-09-24
    • US09681020
    • 2000-11-28
    • Peter E. LucierRichard P. KolbHarvey Ruth
    • Peter E. LucierRichard P. KolbHarvey Ruth
    • F02M3704
    • F02M69/54F02M37/16F02M37/20F02M63/0225
    • A fuel delivery system uses a single electric fuel pump to deliver fuel to a fuel injected engine and returns excess fuel to the single electric fuel pump via a vapor separator and two pressure regulators. A primer bulb draws fuel from a fuel tank with a fuel supply line and transfers the fuel to the single electric fuel pump. The single electric fuel pump delivers fuel to a fuel rail assembly, which enables fuel to be distributed to each fuel injector during engine operation. A fuel return line connects the fuel rail assembly to the single electric fuel pump via the vapor separator to remove excess fuel from the fuel rail assembly and to transfer the excess fuel back to the single electric fuel pump for re-circulation. The first pressure regulator maintains a substantially constant pressure within the fuel injectors while the vapor separator purges entrained gas from the excess liquid fuel to avoid vapor lock. The second pressure regulator allows transfer of fuel to the single electric fuel pump from the vapor separator while preventing reverse flow of fuel from the fuel tank to the vapor separator.
    • 燃料输送系统使用单个电动燃料泵将燃料输送到燃料喷射的发动机,并通过蒸汽分离器和两个压力调节器将多余的燃料返回到单个电动燃料泵。 底漆灯从具有燃料供应管线的燃料箱中吸取燃料并将燃料转移到单个电动燃料泵。 单个电动燃料泵将燃料输送到燃料轨道组件,这使得在发动机运行期间能够将燃料分配到每个燃料喷射器。 燃料返回管线通过蒸汽分离器将燃料轨道组件连接到单个电动燃料泵,以从燃料轨道组件移除多余的燃料,并将多余的燃料转移回单个电动燃料泵以进行再循环。 第一压力调节器在燃料喷射器内保持基本上恒定的压力,同时蒸气分离器清除来自过量液体燃料的夹带气体,以避免气体锁定。 第二压力调节器允许从蒸汽分离器将燃料转移到单个电动燃料泵,同时防止燃料从燃料箱向蒸气分离器反向流动。