公开(公告)号：US08550796B2

公开(公告)日：2013-10-08

申请号：US13264266

申请日：2010-04-14

申请人： Armando Codeca ,  Matteo Cortesi ,  Franco Fermini

发明人： Armando Codeca ,  Matteo Cortesi ,  Franco Fermini

IPC分类号： F04B49/00 ,  F04C14/18

CPC分类号： F04C2/102 ,  F04C14/185

摘要： An internal gear fluidic machine, in particular a pump for the lubrication circuit of a motor vehicle engine, comprises an operating part including an external gear (2) and an internal gear (4), which is housed within an axial cavity (25) of the external gear (2) and meshes with the latter. The external gear (2) is associated with a translating mechanism (8, 22), arranged to cause an axial sliding thereof relative to the internal gear (4) in order to vary the capacity and the fluid flow rate of the machine. The translating mechanism (8, 22) defines a first capacity, adjustment space (24) in communication with a high pressure chamber (48) of the machine, and a second capacity adjustment space (15) where pressure conditions exist that are dependent on the operating conditions of an element, different from the high pressure chamber (48), of a fluidic circuit in which the machine (1) is connected. The translating mechanism (8, 22) causes the sliding of the external gear (2) in response to the pressure conditions existing in the first or the second capacity adjustment spaces (24, 15), or in response to the combination of the pressure conditions existing in both spaces. The invention also concerns a method of varying the capacity of an internal gear fluidic machine.

摘要翻译： 内齿轮流体机械，特别是用于机动车辆发动机的润滑回路的泵，包括操作部件，该操作部件包括外齿轮（2）和内齿轮（4），内齿轮（4）容纳在轴向空腔 外齿轮（2）和后齿轮啮合。 外齿轮（2）与平移机构（8,22）相关联，该平移机构布置成相对于内齿轮（4）引起其轴向滑动，以便改变机器的容量和流体流速。 平移机构（8,22）限定与机器的高压室（48）连通的第一容量调节空间（24）和存在取决于所述机器的压力条件的第二容量调节空间（15） 与机器（1）连接的流体回路不同于高压室（48）的元件的操作条件。 平移机构（8,22）响应于存在于第一或第二容量调节空间（24,15）中的压力条件，或者响应于压力条件的组合，引起外齿轮（2）的滑动 存在于两个空格。 本发明还涉及一种改变内齿轮流体机器的容量的方法。

公开(公告)号：US20120107162A1

公开(公告)日：2012-05-03

申请号：US13264266

申请日：2010-04-14

申请人： Armando Codeca ,  Matteo Cortesi ,  Franco Fermini

发明人： Armando Codeca ,  Matteo Cortesi ,  Franco Fermini

IPC分类号： F04C14/18 ,  F04C2/10

CPC分类号： F04C2/102 ,  F04C14/185

摘要： An internal gear fluidic machine, in particular a pump for the lubrication circuit of a motor vehicle engine, comprises an operating part including an external gear (2) and an internal gear (4), which is housed within an axial cavity (25) of the external gear (2) and meshes with the latter. The external gear (2) is associated with a translating mechanism (8, 22), arranged to cause an axial sliding thereof relative to the internal gear (4) in order to vary the capacity and the fluid flow rate of the machine. The translating mechanism (8, 22) defines a first capacity, adjustment space (24) in communication with a high pressure chamber (48) of the machine, and a second capacity adjustment space (15) where pressure conditions exist that are dependent on the operating conditions of an element, different from the high pressure chamber (48), of a fluidic circuit in which the machine (1) is connected. The translating mechanism (8, 22) causes the sliding of the external gear (2) in response to the pressure conditions existing in the first or the second capacity adjustment spaces (24, 15), or in response to the combination of the pressure conditions existing in both spaces. The invention also concerns a method of varying the capacity of an internal gear fluidic machine.

摘要翻译： 内齿轮流体机械，特别是用于机动车辆发动机的润滑回路的泵，包括操作部件，该操作部件包括外齿轮（2）和内齿轮（4），内齿轮（4）容纳在轴向空腔 外齿轮（2）和后齿轮啮合。 外齿轮（2）与平移机构（8,22）相关联，该平移机构布置成相对于内齿轮（4）引起其轴向滑动，以便改变机器的容量和流体流速。 平移机构（8,22）限定与机器的高压室（48）连通的第一容量调节空间（24）和存在取决于所述机器的压力条件的第二容量调节空间（15） 与机器（1）连接的流体回路不同于高压室（48）的元件的操作条件。 平移机构（8,22）响应于存在于第一或第二容量调节空间（24,15）中的压力条件，或者响应于压力条件的组合，引起外齿轮（2）的滑动 存在于两个空格。 本发明还涉及一种改变内齿轮流体机器的容量的方法。