Constant-temperature low-noise oil sump tank of engine

A technology of oil pan and engine, which is applied in the direction of engine components, machine/engine, engine lubrication, etc. It can solve the problems of damping performance decline, noise rising instead of falling, and high lubricating oil temperature

Inactive Publication Date: 2009-11-11
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are two disadvantages in the use of damping steel plates: one is that the heat dissipation performance of the oil pan made of damping steel plates is poor, resulting in high temperature of the lubricati

Method used

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  • Constant-temperature low-noise oil sump tank of engine
  • Constant-temperature low-noise oil sump tank of engine

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Embodiment Construction

[0008] The structural principles of the present invention will be further described below in conjunction with the embodiments. Engine constant temperature and low noise oil pan, with oil pan main body, solenoid valve, temperature sensor, controller, and transmission cable, etc. The main body 1 of the oil pan is designed as a double-layer sandwich structure, the inner layer is a common steel plate, and the outer layer is a composite damping steel plate. The coolant circulates in the interlayer, and the outer side of the oil pan main body 1 is coated with damping glue. The bottom of the main body of the oil pan is provided with a coolant inlet pipe 2 and a solenoid valve 3; the upper end of the main body of the oil pan is provided with a coolant outlet 4; the lower end of the main body of the oil pan is provided with a temperature sensor 5; the temperature sensor 5 and the solenoid valve 3 Connected with the transmission cable 6 and connected with the controller 7 (such as fig...

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Abstract

The invention discloses a constant-temperature low-noise oil sump of an engine. The main body of the oil sump is designed as the double-layer sandwich structure. The internal layer is made from the common steel plate while the external layer is made from the composite damping steel plate. The bottom of the main body of the oil sump is provided with an inlet pipe of cooling liquid and an electromagnetic valve. The upper end of the main body of the oil sump is provided with an outlet of cooling liquid while the lower end thereof is provided with a temperature sensor. Transmission lines are connected between the temperature sensor and the electromagnetic valve which are connected with a controller. The bottom of the main body of the oil sump is provided with a lubricant discharging outlet. The external side of the main body of the oil sump is pasted with damping rubber. The oil sump is characterized in that: the shell of the oil sump is modeled by the stamping of double-layer vibration-decreasing steel plates; the temperature of the oil sump shell is maintained within a certain range by the circulation of the cooling liquid in the sandwich structure; the damping performance decline of the damping steel plates, caused by the temperature rise of the lubricant of the engine, is eliminated so as to possibly increase noises; therefore the noise-reducing design is considered for the oil sump structure so as to achieve the purposes of decreasing vibration and reducing noise of the oil sump.

Description

technical field [0001] The invention belongs to internal combustion engine structural parts, in particular to a fuel tank bottom shell with constant temperature and low noise. Background technique [0002] Engine surface components include cylinder head, cylinder block-crankcase and several main casing parts (cylinder head cover, gear chamber cover, oil pan) and so on. Among them, the casing parts of the engine are the source of surface radiation noise. Such as figure 1 As shown, without acoustic optimization, the noise radiated from the oil pan accounts for about 35% of the noise of the whole machine when the speed is 3200r / min. More than half of the noise of the whole machine. Among the thin-walled parts of the engine, the oil pan is the most typical structure with the largest radiation surface, so the design of the oil pan is attached great importance at home and abroad. Optimizing the design of the thin-walled structure in the engine, especially for the oil pan, is a...

Claims

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Application Information

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IPC IPC(8): F01M11/00
Inventor 梁兴雨舒歌群卫海桥董立辉
Owner TIANJIN UNIV
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