Aixro XF/XH40 Rotary Engines - Woelfle Engineering GmbH - rotary engine development and worldwide distribution

Continuous Power Source

The Aixro XF40 rotary engine combines the performance and power-to-weight ratio of a two-stroke engine with the torque and reliability of a four-stroke engine. Its design is based on the extremely robust Aixro XR50, and it has been optimized for endurance use. The engine has high-temperature ball and roller bearings to further improve its excellent emergency running properties, additional vents allow almost unidirectional mounting, and the autoventilated V-belt pulley keeps the drive belt cool. Furthermore the XF40's PVL ignition offers variable timing and the spark quality of a battery ignition without needing a permanent battery connection, and its dual intake is equipped with an in-line mechanical unit that ensures full power control.
The Aixro XH40 is identical with the XF40, but it is equipped with a centrifugal clutch inside the output belt pulley. It decouples the engine from the drivetrain in the engine starting phase, which makes it particularly intersting for applications such as manned and unmanned helicpoters.

Technical type power weight torque chamber volume max. rpm ignition output clutch	Specifications 4-stroke single rotor rotary engine 26 kW at 6500 rpm 18.7 kg excl. radiator and exhaust exceeding 35 Nm from 4500 rpm 294 ccm 7000 rpm PVL Fire 650 V-belt pulley (Ø59mm, 16 stripes PJ) optional centrifugal flywheel clutch (XH40)
Included Features	Mechanical single-cable dual inlet control Float carburettor with fuel pump K&N air filter Water channel vents for upside-down mount Water Pump with timing belt drive Onboard starter Ignition with start support 50W alternator autoventilated V-belt pulley Exhaust with 90° manifold and springs
Options	Ceramic apex seals Modular exhaust components Reduction drives upon request
Prices	Please contact a Dealer or Manufacturer
Documentation	Specification Sheet (.pdf) Operation Manual (.pdf) Dimensional Drawings (.pdf) Datenblatt (.pdf) Betriebsanleitung (.pdf) Zeichnungen (.pdf)