Internal-Gear Pump and Hydraulic Circuit for a Motor Vehicle Drivetrain,申请号US201414484682-传众专利搜索

Internal-Gear Pump and Hydraulic Circuit for a Motor Vehicle Drivetrain

申请公布号：US2015086403(A1)

申请号：US201414484682

申请日期：2014.09.12

申请公布日期：2015.03.26

申请人：

GETRAG Getriebe-und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG

发明人：Schweiher Mark;Hoffmeister Thomas;Schuster Sven;Berg Holger

分类号：F04C2/10;F04C14/12;F04C15/06

主分类号：F04C2/10

地址：Untergruppenbach DE

摘要：An internal-gear pump has a housing which has a first fluid port and a second fluid port. An inner rotor is mounted in the housing so as to be rotatable about an inner rotor axis and has an external toothing. An outer rotor is rotatable in the housing about an outer rotor axis and has an internal toothing which, to generate a pump action, engages with the external toothing of the inner rotor. The internal-gear pump furthermore has a ring element which is mounted movably in the housing so as to be pivotable between a first position and a second position. At least a third fluid port is formed on the housing. The third fluid port is arranged relative to the ring element such that, in the first position of the ring element, the third fluid port is connected to the second fluid port. In the second position, said third fluid port is separated from the second fluid port.

主权项：1. An internal-gear pump, having: a housing which has a first fluid port and a second fluid port; an inner rotor which is mounted in the housing so as to be rotatable about an inner rotor axis and which has an external toothing; an outer rotor which is rotatable in the housing about an outer rotor axis and which has an internal toothing which, to generate a pump action, engages with the external toothing of the inner rotor; and a ring element which is mounted movably in the housing and which is pivotable between a first position and a second position;wherein at least a third fluid port is formed on the housing, wherein the third fluid port is arranged relative to the ring element such that, in the first position of the ring element, the third fluid port is connected to the second fluid port, and in the second position, said third fluid port is separated from the second fluid port.