公开(公告)号：US09506476B2

公开(公告)日：2016-11-29

申请号：US14002914

申请日：2012-03-02

Applicant: Christian Homeyer ,  Klaus Willenborg ,  Roland Fiola

Inventor： Christian Homeyer ,  Klaus Willenborg ,  Roland Fiola

IPC: F04D29/06 ,  F01D25/20 ,  F16N7/40

CPC classification number: F04D29/06 ,  F01D25/20 ,  F16N7/40

Abstract: An oil supply system for a propeller turbine engine includes a first oil circuit for supplying the turbomachine and a second oil circuit for supplying the propeller gearbox and the high-pressure pump associated with a propeller adjusting device. The two oil circuits are integrated into a common oil tank and connected to one another by means of an oil supply line in the flow direction downstream of the first and the second oil conveying pumps in such a way that a limited oil volumetric flow can flow from the first oil circuit into the second oil circuit, and only in this direction, if the pressure difference between the first and the second oil circuits falls below a certain level in the event of a pressure reduction in the second oil circuit. In this way, a sufficiently high initial pressure of the oil is produced at the high-pressure pump, even at low propeller speeds and during transient propeller adjustment processes, so that the function of the propeller adjusting device is not impaired and the high-pressure pump is not damaged. Limiting the oil volumetric flow in the oil supply line connecting the two oil circuits prevents that the turbomachine is inadequately supplied with oil, while oil is being removed from the first oil circuit.

Abstract translation: 用于螺旋桨式涡轮发动机的供油系统包括用于供应涡轮机的第一油回路和用于供应螺旋桨变速箱的第二油回路和与螺旋桨调节装置相关联的高压泵。 两个油回路被集成到共同的油箱中，并且通过在第一和第二输油泵的下游的流动方向上的供油管线彼此连接，使得有限的油体积流量可以从 第一油回路进入第二油路，并且仅在该方向上，如果在第二油回路中的压力降低的情况下，第一和第二油回路之间的压力差低于一定水平。 以这种方式，即使在低螺旋桨速度和瞬时螺旋桨调节过程中，高压泵也产生足够高的初始压力，因此螺旋桨调节装置的功能不受损害，高压 泵没有损坏。 限制连接两个油回路的供油管路中的油体积流量，防止涡轮机供油不足，同时从第一个油路中取出油。

公开(公告)号：US20140050561A1

公开(公告)日：2014-02-20

申请号：US14002914

申请日：2012-03-02

Applicant: Christian Homeyer ,  Klaus Willenborg ,  Roland Fiola

Inventor： Christian Homeyer ,  Klaus Willenborg ,  Roland Fiola

IPC: F04D29/06

CPC classification number: F04D29/06 ,  F01D25/20 ,  F16N7/40

Abstract: An oil supply system for a propeller turbine engine includes a first oil circuit for supplying the turbomachine and a second oil circuit for supplying the propeller gearbox and the high-pressure pump associated with a propeller adjusting device. The two oil circuits are integrated into a common oil tank and connected to one another by means of an oil supply line in the flow direction downstream of the first and the second oil conveying pumps in such a way that a limited oil volumetric flow can flow from the first oil circuit into the second oil circuit, and only in this direction, if the pressure difference between the first and the second oil circuits falls below a certain level in the event of a pressure reduction in the second oil circuit. In this way, a sufficiently high initial pressure of the oil is produced at the high-pressure pump, even at low propeller speeds and during transient propeller adjustment processes, so that the function of the propeller adjusting device is not impaired and the high-pressure pump is not damaged. Limiting the oil volumetric flow in the oil supply line connecting the two oil circuits prevents that the turbomachine is inadequately supplied with oil, while oil is being removed from the first oil circuit.

Abstract translation: 用于螺旋桨式涡轮发动机的供油系统包括用于供应涡轮机的第一油回路和用于供应螺旋桨变速箱的第二油回路和与螺旋桨调节装置相关联的高压泵。 两个油回路被集成到共同的油箱中，并且通过在第一和第二输油泵的下游的流动方向上的供油管线彼此连接，使得有限的油体积流量可以从 第一油回路进入第二油路，并且仅在该方向上，如果在第二油回路中的压力降低的情况下，第一和第二油回路之间的压力差低于一定水平。 以这种方式，即使在低螺旋桨速度和瞬时螺旋桨调节过程中，高压泵也产生足够高的初始压力，因此螺旋桨调节装置的功能不受损害，高压 泵没有损坏。 限制连接两个油回路的供油管路中的油体积流量，防止涡轮机供油不足，同时从第一个油路中取出油。