Automatic speed adjusting device for small-size two-stroke gasoline engine

A gasoline engine, automatic speed regulation technology, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve problems such as product launch, and achieve the effect of increasing reliability and service life

Inactive Publication Date: 2015-07-22
ZHEJIANG ZHONGJIAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, many manufacturers, scientific research institutes and people of insi

Method used

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  • Automatic speed adjusting device for small-size two-stroke gasoline engine
  • Automatic speed adjusting device for small-size two-stroke gasoline engine
  • Automatic speed adjusting device for small-size two-stroke gasoline engine

Examples

Experimental program
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Example Embodiment

[0015] Figure 1 to Figure 3 Shown, for the present invention creates the concrete embodiment of a kind of small two-stroke gasoline engine automatic speed control device, it comprises carburetor 1, speed regulating motor 3, circuit controller 4, engine 5, flywheel and magneto 6, engine High voltage pack 7, speed regulating motor 3 are fixed on the carburetor 1 by mounting bracket 2, and the engine speed signal of the flywheel and magneto 6 that are installed on the crankshaft of engine 5 is transmitted to circuit controller 4, and circuit controller 4 and After the set speed is compared, the rotation signal of the speed regulating motor is output, so that the speed regulating motor 3 rotates forward or reversely, the throttle opening of carburetor 1 is opened or closed at a certain angle driven by speed regulating motor 3, and the throttle opening of carburetor 1 changes Control the engine 5 rotating speed, make the engine 5 rotating speed work at a constant speed under the s...

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PUM

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Abstract

The invention discloses an automatic speed adjusting device for a small-size two-stroke gasoline engine. The device comprises a carburetor (1), an adjustable-speed motor (3), a circuit controller (4), the engine (5), a flywheel and magnet motor (6) and an engine high pressure pack (7), the adjustable-speed motor (3) is fixed on the carburetor (1) through a mounting bracket (2), engine speed signals of the flywheel and magnet motor (6) which is installed on a crankshaft of the engine (5) are transmitted to the circuit controller (4), after making comparison with a set revolving speed, the circuit controller (4) outputs an adjustable-speed motor revolution signal, the adjustable-speed motor (3) is made to revolve forward or reversely, the accelerator opening of the carburetor (1) is driven by the adjustable-speed motor (3) to be opened or closed for a certain angle, the accelerator opening variation of the carburetor (1) controls the revolving speed of the engine (5), and the engine (5) is made to work at a constant speed under the set revolving speed. By means of the structure, the device has the advantages that the structure is simple and reasonable, the operation and use are convenient, the engine speed is adjusted automatically according to the set revolving speed, the operation is safe and reliable, and the device is capable of meeting emission requirements of the United States and the European Union.

Description

technical field [0001] The invention relates to a small two-stroke gasoline engine, in particular to an automatic speed control device for a small two-stroke gasoline engine that uses the power generated by the high-pressure package of the engine to automatically control the throttle opening of the carburetor to achieve automatic speed regulation. Background technique [0002] As a power device, a small two-stroke gasoline engine is widely used in lawn mowers, brush cutters, trimmers, tillers, scarifiers, planters, It has been widely used in gasoline saws and other equipment. However, due to the limitation of its own structure, the fuel utilization rate of the small two-stroke gasoline engine is low, and a considerable part of the oil gas is discharged without combustion or insufficient combustion, resulting in a considerable part of HC (hydrocarbons) in the exhaust gas. [0003] With the step-by-step improvement of emission regulations in the United States and the European...

Claims

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Application Information

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IPC IPC(8): F02D1/04
Inventor 周建峰杨海岳
Owner ZHEJIANG ZHONGJIAN TECH
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