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Four-stroke engine of vertical shaft OHC structure

A four-stroke engine, engine technology, applied in the direction of machine/engine, mechanical equipment, valve drive device, etc., to ensure separation and recovery, reduce abnormal consumption, and optimize engine emissions

Inactive Publication Date: 2015-10-21
JIANGSU LINHAI POWER MACHINERY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of poor performance, excessive lubricating oil consumption, poor operation reliability, etc. Technical issues, provide "a vertical axis OHC structure four-stroke engine"

Method used

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  • Four-stroke engine of vertical shaft OHC structure
  • Four-stroke engine of vertical shaft OHC structure

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Embodiment

[0023] The lubricating oil pool collects the lubricating oil separated and settled from the valve train cavity and the respirator chamber; the lubricating oil separated and settled in the valve train cavity is directly collected into the lubricating oil pool below; Under the action of gravity, the oil flows into the lubricating oil sump from the return hole of the separator at the lower side of the separator.

[0024] The lubricating oil mist generating mechanism is arranged in such a way that the lubricating oil tank chamber is arranged above the engine main body, the engine output mechanism is arranged below the engine main body, the crankshaft is vertically supported on the crankcase and installed in the crankcase chamber, and the output end of the crankshaft extends downwards And it is connected with the engine output mechanism arranged under the main body of the engine, and the other end extends upwards through the lubricating oil tank chamber and the driving pulley, and a...

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Abstract

The invention discloses a four-stroke engine of a vertical shaft OHC structure. The four-stroke engine of the vertical shaft OHC structure comprises an engine body and a timing transmission mechanism arranged above the engine body. The engine body mainly comprises a crankcase, a cylinder body and a cylinder head. The timing transmission mechanism is mainly composed of a driving belt wheel, a timing belt and a driven belt wheel which are located above the oil face of lubrication oil, and further mainly comprises a gas distribution mechanism, a lubrication mechanism and an oil-gas separation and lubrication oil recycling mechanism. The gas distribution mechanism is mainly composed of a cam, a cam rocker, a cam transmission shaft and an inlet and exhaust valve. The lubrication mechanism mainly comprises a lubrication oil mist generation mechanism and a lubrication channel. The oil-gas separation and lubrication oil recycling mechanism mainly comprises a cylinder head cavity, a partition board and a returned oil sucker. The novel vertical shaft OHC structure is adopted and the oil mist lubrication mode is adopted; the structural design is reasonable and compact; the cost is low; the consumption of the lubrication oil can be effectively reduced; engine emission is optimized; the operation reliability of the engine is improved.

Description

Technical field: [0001] The invention relates to the field of gasoline engines, in particular to a four-stroke gasoline engine in which the output shaft of the engine is used vertically downward, and in particular to a four-stroke engine with a vertical axis OHC structure. Background technique: [0002] The engine with the output shaft vertically downward is mainly used for supporting the rotary tiller. In the past, the engines with the output shaft vertically downward used in supporting rotary tillers were mainly two-stroke gasoline engines and a small number of four-stroke engines. Two-stroke gasoline engines can no longer meet people's requirements for environmental protection and comfort due to high emissions and high noise; the four-stroke engines currently used are often general-purpose models. The performance is poor when the output shaft is used vertically downward, especially when the output shaft is used vertically downward, the engine block is in a horizontal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B75/02F01L1/02F01M9/12F01M11/03
Inventor 张荣山马骏袁银兰程乐陈春王宜萍
Owner JIANGSU LINHAI POWER MACHINERY GROUP
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