PMP90H is a 2 cylinder opposed, 2 stroke and air-cooled piston engine.

With high efficiency fuel atomization, stratified sweeping and electronic control technology, combustible gasoline and RP-3 aviation makes it perfect characteristic, low temperature quick start, low fuel consumption and high power weight ratio.

PMP90H ideal for those UAV which request special fuel and flight duration. Suitable for small shipborne UAV, forest fire-fighting UAV, fire-fighting unmanned helicopter, oil-electric hybrid multi-rotor aircraft, etc.

PMP90H heavy fuel piston engine consists of engine system, generating unit and preheating unit.

The engine system consists of intake system, casing, crankshaft assembly, piston assembly, cylinder block and electronic control system.

Type：2 cylinder opposed, 2 stroke and air-cooled, ignition piston engine.

Dimension：295mm×150mm×165mm

Bore：44mm

Stroke：33mm

Displacement：100ml

Net weight：≯3.85kg

Max. power：5kW@8500rpm

Fuel consumption rate：≤350g/kW·h

Start time：≯3s

Max. starting height：≮4750m

Limited altitude：7000m

Feeding mode：EFI

Feul：RP-3 aviation kerosene or gasoline

TBO：≮300h

Generation Unit and Technical Parameters

Power generation unit includes high efficiency generator and ACDC module, which can provide power for UAV airborne equipment. (Optional)

Mount：coaxial mounting

Generator weight：360g

ACDC weight：860g

Working temperature：-55℃~70℃

Power：300W≥at 5500rpm

Out put voltage：triple output， 28VDC,13VDC,6VDC

Preheating Unit and Technical Parameters:

In order to achieve fast and reliable starting of engine at low temperature situation, preheating unit can provide thermal energy to efficient atomization mechanism, to gain better atomization and evaporation of heavy fuels.

preheating unit consists of lithium battery and preheating wire harness. High preheating efficiency, Short preparation time（10~15s），High integration and easy to carry. (Optional)

Total weight：≤6kg

Rated voltage：36VDC

Rated current：20A

Max. discharge current：40A，continuous discharge time≮5min

Battery：20Ah

PMP90H型重油活塞发动机由发动机系统、发电单元、预热单元组成，其中发电单元与预热单元为选配。

发动机系统及技术参数

发动机系统由进气系统、机匣、曲轴组件、活塞组件、缸体、电控系统组成。

型式：双缸对置、两冲程风冷、点燃式活塞发动机

尺寸：295mm×150mm×165mm

缸径：44mm

行程：33mm

排量：100ml

本体重量：≯3.85kg

最大功率：5kW@8500rpm

耗油率：≤350g/kW·h

起动时间：≯3s

最大起动高度：≮4750m

最大使用高度：7000m

供油方式：电喷

使用燃油：RP-3航空煤油或汽油

使用寿命：≮300h

发电单元及技术参数

发电单元包含高效率发电机和ACDC模块，可为无人机机载设备提供用电，为选配件。

安装形式：同轴安装

发电机重量：360g

ACDC模块重量：860g

使用环境：-55℃~70℃

发电功率：5500rpm工作转速下发电功率不低于300W

输出电压：三路输出，分别为28VDC、13VDC、6VDC

预热单元及技术参数

预热单元的作用是发动机起动前为高效雾化机构提供热能，使得重油燃料能够充分雾化蒸发，实现发动机在低温状态下快速可靠起动。系统预热效率高，所需准备时间短（10~15s），主要由锂电池和预热线束组成，设备集成化程度高，方便携带，为选配件。

总重量：≤6kg

供电电压：36VDC

额定电流：20A

最大放电电流：40A，可持续放电时间≮5min

电池容量：20Ah