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October 31, 2005 No.1084

MHI To Market New Multipurpose 2-Cycle Gasoline Engines
- Lightest in the Class and Greatly Improved Easy-starting -
Tokyo, October 31, 2005 - On November 1st, Mitsubishi Heavy Industries, Ltd. (MHI) will commence marketing of Mitsubishi Meiki TB Series, new 2-cycle, multipurpose gasoline engines. The TB Series was developed through fully remodeling of existing TL Series that was introduced 13 years ago. The TB Series boasts the lightest weight engine in the class and will help reduce burden and tiredness from working long hours. The TB Series engines also feature greatly improved easy-starting function, in addition to weight reduction. MHI will markets the engines in agricultural machinery field, mainly for brush cutter application, and targets TB Series' sales of 100,000 units per year.

Mitsubishi Meiki Engine TB23
  Mitsubishi Meiki Engine TB23
   
In response to aging of agricultural workers, the TB Series was developed with the basic concept of "friendly and easy operation." The new models are available in 3 models - TB20, 20 cc (cubic centimeter) displacement class; TB23, 23 cc class; and TB26, 26 cc class - and six types - each model is available either flange type or clutch case built-in type.

All models, with streamlined design emphasizing roundness, achieved "weight reduction" and "easy-starting," as well as easy-to-use operability with various new ideas. Specifically, weight reduction is realized through size-reduction of ignition coil and application of new material for a rotor - approximately 10% lighter than the TL series. Especially, TB26 adopt magnesium alloy for its clutch case to attain further weight reduction.

For easy starting, TB Series includes "Miracle Start" mechanism as standard equipment that enables to reduce the power required for engine starting to half. Usability is further enhanced with many features, including one-touch detachment/attachment of air-cleaner cover for easy cleaning or replacement of the element.

MHI began production of Mitsubishi Meiki Engines in 1946 originally for its scooters, and the cumulative total production of the engines has recorded 20 million units in March 2005. On the strength of the new engine series introduction, MHI will further strengthen its marketing activities of 2-cycle and 4-cycle, multi-purpose gasoline engines in agricultural machinery and industrial machinery fields.


Major Specifications of Mitsubishi Meiki Engine TB Series

Models

TB20

TB23

TB26

Engine Type

Air-cooled, two-stroke, piston valve method gasoline engine

Bore x Stroke (mm)

30.2 x 28

32 x 28

34 X 28

Displacement (cm3)

20.1

22.5

25.4

Fuel

Mixture of gasoline and lubricating oil (ratio 50:1)

Lubrication Oil

2-cycle motor oil (JASO FC class or ISO EGC class)

Starting System

Recoil starter ("Miracle Start," standard equipment)

Ignition System

TCI (Transistor Capacitor Ignitor)

Ignition Plug

NGK BM6A

NGK BPM7Y

Carburetor

Diaphragm type (overflow return)

Air-cleaner

Semi-dry type, polyurethane foam

Rotation

Counter-clockwise: facing to the engine from PTO shaft side

Fuel Tank Capacity (liters)

0.4

0.5

0.6

Dry weight (kg)

Flange type

2.0

2.1

2.25

Clutch case built-in type

2.2

2.3

2.45

Dimensions (mm)
Length x Width x Height

Flange type

153 x 206 x 214

153 x 214 x 214

153 x 219 x217

Clutch case built-in type

243 x 206 x 214

243 x 214 x 214

244 x 219 x 217



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About Mitsubishi Heavy Industries
Mitsubishi Heavy Industries, Ltd. (MHI), headquartered in Tokyo, Japan, is one of the world's leading heavy machinery manufacturers, with consolidated sales of 2,590 billion yen in fiscal 2004 (year ended March 31, 2005). MHI's diverse lineup of products and services encompasses shipbuilding, steel structures, power plants, chemical plants, steel plants, environmental equipment, industrial and general machinery, aircraft, space rocketry and air-conditioning systems.
For more information, please visit the MHI website (http://www.mhi.co.jp).


PRESS CONTACT:
Hideo Ikuno: h.ikuno@daiya-pr.co.jp
Tel: +813-6716-5277, Fax: +813-6716-5929
Daiya PR (in charge of public relations for Mitsubishi Heavy Industries, Ltd.)
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