Onboard generators

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更新时间：2015-11-05 13:43
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经营模式：经销和服务商
地区：海外美国
电话：400-003-8030
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Key Features

The 3W 28i engine is supplied together with UAV Factory’s proprietary 100W onboard generator system. The generator system is factory installed on the 3W 28i engine, tuned and tested before delivery.
The two-stroke 3W 28i engine is a proven choice for unmanned aircraft vehicles due to excellent power-to-weight ratio and reliability. The 28i engine is available in both pusher and tractor versions. It is also possible to order 3W 28 CS engine, which offers higher power output.
The 3W 28i engine and generator system is often used for unmanned aircraft vehicles with the takeoff weight of 8 to 23 kg.
The following items are included in the 3w 28i engine and generator system:

3W 28i (or 28 CS) engine. Pusher or tractor engine versions are available
Ignition unit
Preinstalled 100W onboard generator system
Generator Power Unit
Wiring with Fischer push-pull connectors installed
Two level anti-vibration engine mount (optional)
Hitec digital throttle servo and linkage (optional)

Engine Specifications:

PARAMETER	VALUE
Engine model	3W 28i or 28 CS, two stroke
Power	3.35 hp (28i) or 3.55 hp (28 CS)
Capacity	28 cc
Speed range	1500-8500 rpm
Oil / Gasoline Ratio	1:50 / 2% mix
Recommended 2-bladed Propellers	16x10, 18x8, 18x10, 20x8
Recommended 3-bladed Propellers	16x8, 16x10
Engine weight ( including ignition)	1.2 kg
Muffler	Not included

Electrical Specifications:

PARAMETER	VALUE
Generator type	Brushed
Generator voltage range	13 – 50 VDC
External power supply voltage range	13 – 50 VDC
Battery Type	3 cells Li-Polymer (not included)
Battery Voltage	12.6 V
Maximum battery charging current	2 A
Maximum continuous generator current	3.5 A
Maximum continuous battery current	8 A
Maximum continuous external power current	8 A
Output voltage	6 V and 12 V
Maximum output voltage ripple	50 mV @6V 50 mV@12V
Continuous load current, 6 Volt output ^1,2	5 A
Continuous load current, 12 Volt output ^1,2	5 A
Maximum GPU efficiency	90 %
Maximum total generator system efficiency	75 %
Maximum peak load current	10 A for 10 seconds
No load GPU current	110 mA
Tachometer range	1000-9000 rpm
Tachometer accuracy	200 rpm
Current sensor range	0 to 10 A
Current sensor accuracy	0.2 A
Voltage sensor accuracy	0.1 V
Serial Communication	5V TTL

Generator System Mechanical Specifications:

PARAMETER	VALUE
GPU Dimensions	59.4 x 115.8 x 32.4 mm
GPU Weight	~190 grams
Complete Onboard Generator System weight	~550 grams
Maximum GPU enclosure temperature	70°C
Environmental protection	IP 64 standard, IP 68 on request
Operating temperature	- 40°C to +50°C 2
Electrical connectors	Fischer 104 Series push-pull connector

¹ Generator continuous current must not exceed 3.5 A
² Enclosure temperature must not exceed 70 °C , additional cooling may be required