Diesel engine combustion device capable of changing clearance volume

A technology of clearance volume and combustion device, which is applied to the sealing device of the engine, combustion engine, mechanical equipment, etc., can solve the problems of unadjustable clearance volume, large pressure rise rate, low thermal efficiency, etc. The effect of increasing the burning speed and improving the thermal efficiency

Inactive Publication Date: 2013-05-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the piston goes up to the top dead center, the clearance volume cannot be adjusted, the pressure rise rate is large, and the fuel injection rate is too large, which will lead to rough work in the cylinder
When the fuel injection rate is small, after-combustion in the cylinder is serious and the thermal efficiency is low

Method used

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  • Diesel engine combustion device capable of changing clearance volume
  • Diesel engine combustion device capable of changing clearance volume
  • Diesel engine combustion device capable of changing clearance volume

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Embodiment Construction

[0012] The purpose and effects of the present invention will become more apparent by describing the present invention in detail below with reference to the accompanying drawings.

[0013] Such as figure 1 As shown, a diesel engine combustion device with variable clearance volume of the present invention includes: a cam 1, an adjustment rod 2, a housing 3, a gas sealing ring 4, a cylinder head 5, a cylinder block 6, a piston 7, a connecting rod 8. Housing cover 9, preload spring 10, adjusting piston 11, valve stem 12, intake manifold 13, piston gas sealing ring 14, oil sealing ring 15, crankcase 16.

[0014] Cylinder head 5, cylinder block 6, crankcase 16 are fixedly installed in sequence, and housing 3, valve stem 12 and intake manifold 13 are all installed on cylinder head 5. The housing upper cover 9 is fixedly installed on the housing 3, the central axis of the inner cavity of the housing 3 is aligned with the axis of a through hole on the cylinder head 5, the adjusting pi...

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PUM

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Abstract

The invention discloses a diesel engine combustion device capable of changing clearance volume which comprises a shell body, a pre-loaded spring, a gas sealing ring, an adjusting rod, a cylinder cover, a cylinder body, a piston, a correction rod, a sparking plug, an adjusting piston, a valve rod, an intake manifold, a piston gas sealing ring, an oil sealing ring and a crank case. A through hole is formed in the top of the cylinder cover, the shell body is installed in the through hole, the adjusting piston is arranged in a center through hole of the shell body, the lower end of the adjusting piston extends in the through hole of the cylinder cover, the adjusting rod is fixedly arranged on the adjusting piston, extends out from the shell body and abuts against a cam, and the pre-loaded spring is arranged inside the shell body to enable the adjusting piston to keep in a down-pressing state. The diesel engine combustion device capable of changing the clearance volume can optimize combustion conditions of a diesel engine, effectively solves the defect of rough running caused in the process of improving injection rate of the diesel engine, the engine is enabled to operate stably, and in addition, the diesel engine combustion device capable of changing the clearance volume benefits reliability improving of parts of the diesel engine. The diesel engine combustion device capable of changing the clearance volume is simple and stable.

Description

technical field [0001] The invention relates to a diesel engine combustion device, in particular to a diesel engine combustion device with variable clearance volume. Background technique [0002] Conventional diesel engines use compression ignition combustion. When the piston goes up to the top dead center, the clearance volume cannot be adjusted, the pressure rise rate is large, and the fuel injection rate is too large, which will lead to rough work in the cylinder. When the fuel injection rate is small, the afterburn in the cylinder is serious and the thermal efficiency is low. Contents of the invention [0003] The purpose of the present invention is to provide a diesel engine combustion device with a variable clearance volume for the deficiencies of the prior art. The shortcomings of rough work make the engine run smoothly and help improve the reliability of diesel engine parts. The device is simple and stable. [0004] The purpose of the present invention is achie...

Claims

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Application Information

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IPC IPC(8): F02D15/04F02B23/04F02F1/24F02F11/00
CPCY02T10/125Y02T10/12
Inventor 何文华胡滨鹏戴明新侯明阳王英辉
Owner ZHEJIANG UNIV
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