An engine

By using a cable and locking assembly in the engine, the problem of speed and power deviation caused by reduced elasticity of the speed regulating spring is solved, ensuring that the engine can still reach the rated power and speed when the elastic element loses elasticity, thus meeting the requirements of environmental reliability tests.

CN115306568BActive Publication Date: 2026-07-24JIANGSU CHANGFA AGRI EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU CHANGFA AGRI EQUIP
Filing Date
2022-08-31
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The reduced elasticity of the speed regulating spring in existing engines leads to excessive deviations in engine speed and power, failing to meet the requirements of environmental reliability testing and affecting the working efficiency of machinery and the acquisition of environmental protection certificates.

Method used

The system uses a cable and locking assembly. When the elastic element loses elasticity, the cable tightens and pulls the connecting arm, allowing the fuel injection pump to reach its maximum opening, thus ensuring that the engine reaches its rated power and speed.

Benefits of technology

When the elasticity of the elastic element weakens, the fuel injection pump is controlled to reach its maximum opening through the cooperation of the pull cable and the locking assembly, so as to ensure the rated power and speed of the engine and meet the requirements of environmental reliability test.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN115306568B_ABST
    Figure CN115306568B_ABST
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Abstract

The application provides an engine, comprising: a body, an oil injection pump and a speed regulating assembly, the body is externally provided with a gear chamber, the gear chamber comprises a gear chamber wall and a cavity formed in the gear chamber wall; the oil injection pump is fixed to the gear chamber wall; the speed regulating assembly comprises an adjusting part and a first rotating shaft, the adjusting part comprises an adjusting arm, one end of the first rotating shaft located outside the cavity is provided with a rocker arm, the adjusting arm and the rocker arm are connected through an elastic element, one end of the first rotating shaft located in the cavity is provided with a first connecting arm, the first connecting arm is connected with the oil injection pump, the speed regulating assembly further comprises a pull wire, the pull wire is connected with the adjusting arm and the rocker arm. Through the cooperation of the pull wire and the locking assembly, when the first spring elasticity is weakened, the operating arm is adjusted to the position in contact with the limiting screw, the pull wire is taut, and the third connecting arm is pulled to rotate through the same angle as when the first spring elasticity is not weakened, thereby controlling the oil injection pump to reach the maximum opening.
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