Vertical Twin cylinder "Bottle" engine

    Kit Price £214 + p&p - special order, please Contact us for status.

  • DescriptionModel Engine

    All Chiltern Model Steam Engine kits are fully machined and can be easily assembled with basic tools. The model engines are fully working and can be run using live steam or simply using compressed air from foot or hand pumps.

    The vertical twin cylinder Bottle engine is basically two single cylinder Bottle engines connected via a common crank shaft. As such it is still relatively simple and retains the basic mechanics of engines which powered larger plant which needed the extra power provided by a twin cylinder engine.

    This engine layout has two double acting cylinders, eccentric driven slide valves and a brass flywheel offers smooth running and is capable of powering a range of accessories, in a variety of roles. The engine also includes triple split bronze pedestal bearings for the crank shaft and two cast pillars and base.

    On the twin crankshaft, the cranks for each cylinder are offset by 90° which means the engine will self-start in any position.

    The kit consists of precision produced parts each carefully made and checked to ensure reliability in service.

    The cylinder assembly and piston is manufactured from brass and the piston shaft and valve from stainless steel so are not susceptible to corrosion. The piston shaft passes through an adjustable gland which is readily accessible.

    To power the engine with live steam, connect it to our Horizontal 3.5" Model Steam Boiler.

    In addition to the kit, subject to availability, a finished engine is available in black, red, green or blue. Please contact us for availability and pricing.
  • The pictures are of the finished models after painting and polishing.

    NOTE: Cylinder cross head capscrews now replaced with stainless steel socket head capscrews.

    Click picture to get enlarged view
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  • SpecificationCompleted Model

    Type: Vertical Slide
    Bore: 14mm
    Stroke: 18mm
    Flywheel Diameter: 56mm
    Valve type: Slide
    Height: 160mm
    Length: 110mm
    Width: 75mm
    Weight: 2.0kg
    Connections: 1/4" x 40 tpi ME