Turboshaft engine with parallel shafts

申请公布号：

US9297305(B2)

申请号：

US201013395212

申请日期：

2010.09.29

申请公布日期：

2016.03.29

申请人：

TURBOMECA

发明人：

Drachsler Antoine;Perbos Alain Michel;Silet Joel

分类号：

F02C3/14;F02C3/10;F02C3/05

主分类号：

F02C3/14

代理机构：

Oblon, McClelland, Maier & Neustadt, L.L.P.

代理人：

Oblon, McClelland, Maier & Neustadt, L.L.P.

地址：

Bordes FR

摘要：

A free-turbine turboshaft engine including a gas generator including at least one compressor supplied with air, a combustion chamber receiving the compressed air at the output of the compressor, and at least one generator turbine mechanically connected to the compressor by a drive shaft and driven by gases from combustion of fuel carried out in the combustion chamber, and including a free turbine supplied by the gases from the combustion after passing through the generator turbine and which drives a power shaft positioned non-coaxially relative to the drive shaft of the gas generator and supplying the power of the turboshaft engine via a reduction gear. The combustion chamber is a substantially cylindrical or frusto-conical chamber, coaxial with the axis of the generator turbine, and includes a single injector.

主权项：

1. A turboshaft engine with a free turbine for an aircraft, comprising: a gas generator comprising at least one compressor supplied with air; a combustion chamber receiving compressed air leaving the compressor; at least one generator turbine connected mechanically to the compressor by a drive shaft and driven by gases arising from fuel combustion carried out in the combustion chamber; a free turbine supplied with the gases arising from the combustion after passage thereof through the generator turbine, and which drives a power shaft not in an extension of the drive shaft of the gas generator, and supplying the turboshaft engine power via a reduction gearbox, wherein the generator turbine is of axial type and the combustion chamber is a substantially cylindrical or frustoconical chamber, in an extension of the axis of the generator turbine, and comprising a single injector; wherein the power shaft is oriented parallel to the drive shaft; and wherein the reduction gearbox is associated with an accessories gearbox, the two gearboxes being positioned in the longitudinal direction on a level with an air inlet of the compressor.