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    • 2. 发明公开
    • OIL PUMP
    • EP3276176A4
    • 2018-04-11
    • EP16768222
    • 2016-02-16
    • JATCO LTD
    • IDE ATSUYUKI
    • F04C2/10F04C15/00F04C15/06
    • F04C2/10F04C15/0049F04C15/06F04C2250/102
    • An oil pump (1) is provided with an inner rotor (22) configured to rotate integral with a shaft (20), an outer rotor (23) disposed in a loose-fit state within a pump chamber (31) and having an internal toothed portion provided on an inner periphery of the outer rotor and meshed with an external toothed portion provided on an outer periphery of the inner rotor (22), a ring-shaped pressure chamber (34) provided adjacent to the pump chamber (31) in a direction of a rotation axis (X), a discharge opening (241) for connecting the pump chamber (31) and the pressure chamber (34), and a discharge passage (35) having one end (35b) connected to the pressure chamber (34) and the other end serving as a connection opening (35a). The discharge passage (35) is formed to have a circular cross-sectional shape when viewed in the rotation axis X direction, and is provided at a position bridging the inside and outside of the outer periphery of the pressure chamber (34) when viewed in the rotation axis (X) direction. The one end (35b) of the discharge passage (35) is provided at a position reaching to a middle of the pressure chamber (34) when viewed in a radial direction of the rotation axis (X), and the discharge passage (35) and the pressure chamber (34) are in direct communication with each other.
    • 3. 发明公开
    • OIL PUMP
    • 油泵
    • EP3276176A1
    • 2018-01-31
    • EP16768222.8
    • 2016-02-16
    • Jatco Ltd.
    • IDE, Atsuyuki
    • F04C2/10F04C15/06
    • F04C2/10F04C14/18F04C15/0049F04C15/06F04C15/064F04C2250/102
    • An oil pump (1) is provided with an inner rotor (22) configured to rotate integral with a shaft (20), an outer rotor (23) disposed in a loose-fit state within a pump chamber (31) and having an internal toothed portion provided on an inner periphery of the outer rotor and meshed with an external toothed portion provided on an outer periphery of the inner rotor (22), a ring-shaped pressure chamber (34) provided adjacent to the pump chamber (31) in a direction of a rotation axis (X), a discharge opening (241) for connecting the pump chamber (31) and the pressure chamber (34), and a discharge passage (35) having one end (35b) connected to the pressure chamber (34) and the other end serving as a connection opening (35a). The discharge passage (35) is formed to have a circular cross-sectional shape when viewed in the rotation axis X direction, and is provided at a position bridging the inside and outside of the outer periphery of the pressure chamber (34) when viewed in the rotation axis (X) direction. The one end (35b) of the discharge passage (35) is provided at a position reaching to a middle of the pressure chamber (34) when viewed in a radial direction of the rotation axis (X), and the discharge passage (35) and the pressure chamber (34) are in direct communication with each other.
    • 本发明提供一种油泵(1),其具有与轴(20)一体旋转的内转子(22),在泵室(31)内以松配合状态配置的内转子(23) 设置在所述外转子的内周上并且与设置在所述内转子的外周上的外齿部啮合的环形压力室;邻近所述泵室设置的环形压力室, (X)的方向,用于连接泵室(31)和压力室(34)的排出口(241)以及具有与压力室(34)连接的一端(35b)的排出通道(35) (34),另一端用作连接开口(35a)。 当从旋转轴线X方向看时,排出通道(35)形成为具有圆形的横截面形状,并且设置在当观察时在压力室(34)的外周的内外桥接的位置处 旋转轴(X)方向。 从排出通路35的径向观察,排出通路35的一端35b设置在到达压力室34的中途的位置, 和压力室(34)彼此直接连通。
    • 8. 发明公开
    • Gear pump
    • Zahnradpumpe
    • EP2829731A1
    • 2015-01-28
    • EP14177941.3
    • 2014-07-22
    • JTEKT CORPORATION
    • Ebihara, TsuyoshiMorita, TeppeiUdo, Katsuhisa
    • F04C2/10F04C15/00F04C2/08
    • F04C2/10F04C2/086F04C2/102F04C15/0026F04C15/0049F04C2250/101
    • In a gear pump, an outer rotor (40) and an inner rotor (45) are disposed in a rotor installation chamber (15) defined by a pump body (10) and a pump cover (20). A suction port groove (22) and a discharge port groove (31) are formed in at least one of the pump body (10) and the pump cover (20). A narrowing portion (60) is formed at a portion of a radially outer side wall portion (25) of the suction port groove (22), the portion being close to a terminal end wall portion (27) of the suction port groove (22). The narrowing portion (60) narrows the groove width in the radial direction. A pressurizing region (62) that pressurizes oil in the gear chamber (50) is formed between the narrowing portion (60) and the terminal end wall portion (27).
    • 在齿轮泵中,外转子(40)和内转子(45)设置在由泵体(10)和泵盖(20)限定的转子安装室(15)中。 在所述泵体(10)和所述泵盖(20)的至少一个中形成有吸入口槽(22)和排出口槽(31)。 在吸入口槽(22)的径向外侧壁部(25)的一部分处形成有狭窄部(60),该部分靠近吸入口槽(22)的末端壁部(27) )。 狭窄部(60)使径向宽度变窄。 在减速部(60)与终端壁部(27)之间形成有对齿轮室(50)内的油进行加压的加压区域(62)。
    • 10. 发明公开
    • Simple fire truck with easy movement
    • 简易消防车轻微搅动
    • EP2617469A3
    • 2013-08-07
    • EP12003574.6
    • 2012-05-08
    • JM motors Co., Ltd.
    • Kno, Sung-Wang
    • A62C27/00F04C2/16F04C15/00
    • A62C27/00F04C2/086F04C2/16F04C14/28F04C15/0026F04C15/0049F04C15/0096
    • Provided is a simple fire truck that easily moves to a narrow fire occurred spot difficult for a car to enter by using a transfer wheel driven by a motor separately from a pump driven by an engine, the simple fire truck including: a depressurization groove that is formed between a chamber where a sealing unit receiving pressure of the pump is provided, and a suction hole, so as to depressurize a pressure of the chamber; a lubricating water supply unit for improving durability through lubrication and cooling by supplying lubricating water to an inlet of the chamber according to a vacuum pressure generated during an initial activation of the pump; and a rotor unit having a first protrusion at an end of a side of a rotor provided inside the chamber, and a second protrusion at a periphery of a shaft hole through which a rotation shaft penetrates. Accordingly, the simple fire truck easily moves to the narrow fire occurred spot difficult for a car to enter by using the transfer wheel driven by the motor separately from the pump driven by the engine, prevents a damage of the sealing unit by depressurizing a pressure transferred to the sealing unit by forming a groove between the chamber and a suction unit formed inside the pump, and improves durability of a positive-displacement pump through lubrication and cooling by using a lubricating water suction unit provided at a pump suction unit during an initial activation.