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Built-in oil pump gear chamber

A technology for gear chambers and oil pumps, which is applied to oil pans, mechanical equipment, engine components, etc. It can solve the problems of oil pump casing expansion, increased oil leakage probability, and seal failure, so as to reduce processing difficulty and solve sealing problems. Sexual failure, the effect of ensuring sealing

Pending Publication Date: 2022-05-24
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a structure, although it is convenient to disassemble and assemble, and the design cost of the gear chamber is low, but it will need to process a large flat sealing surface, which will increase the chance of oil leakage; and the front oil seal of the crankshaft is installed on the oil pump housing The heat generated when the inner rotor of the oil pump runs at high speed will cause the oil pump casing to expand, and the seal between the front oil seal and the oil pump casing will fail from time to time, especially the oil pump casing made of aluminum parts has a high oil leakage rate

Method used

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  • Built-in oil pump gear chamber
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Embodiment Construction

[0025] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0026] The specific embodiment of the present invention is as follows: Figure 1-8 As shown, a gear chamber with built-in oil pump includes a gear chamber 1. A positioning boss 2 is arranged in the gear chamber 1. The positioning boss 2 is provided with a crankshaft front oil seal mounting hole 3 which is adapted to the crankshaft. 1 is provided with a plurality of oil pump installation holes 4 on the bottom wall, and an oil inlet hole 5 is arranged on the inner side of the plurality of oil pump installation holes 4, and the hole wall of the oil inlet hole 5 is provided with a downward extension to the gear chamber 1. The oil inlet passage 6 at the bottom end is provided with an oil inlet flange 7 at the oil passage open...

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Abstract

The invention discloses a built-in oil pump gear chamber which comprises a gear chamber body, a positioning boss is arranged in the gear chamber body, a crankshaft front oil seal mounting hole matched with a crankshaft is formed in the positioning boss in a penetrating mode, a plurality of oil pump mounting holes are formed in the bottom wall in the gear chamber body, and oil inlet holes are formed in the inner sides of the oil pump mounting holes. The hole wall of the oil inlet hole is provided with an oil inlet channel extending downwards to the bottom end of the gear chamber, an oil inlet flange is arranged at an oil channel opening in the bottom end of the oil inlet channel, oil outlet holes are formed in the inner sides of the multiple oil pump mounting holes, and the hole wall of each oil outlet hole is provided with an oil outlet channel extending towards one side to the side wall of the gear chamber. An oil outlet channel outlet perpendicular to the oil outlet channel is formed in the side wall in the gear chamber. The invention discloses a built-in oil pump gear chamber, belongs to the technical field of oil pump assembly, and aims to reduce a connecting end face needing to be machined, reduce machining difficulty and ensure connection sealing performance.

Description

technical field [0001] The present invention relates to oil pump assembly technology, more particularly, it relates to a gear chamber for built-in oil pump. Background technique [0002] At present, the assembly position sequence between the upper gear chamber (1 cast iron or cast aluminum) and the oil pump of the diesel engine is that the oil pump is installed on the side of the gear chamber (ie, the front end of the engine), and the crankshaft is driven coaxially to make the oil pump The speed is the same as the engine speed. Such a structure, although it is easy to disassemble and assemble, and the design cost of the gear chamber is low, it will need to process a large flat sealing surface, which will increase the probability of oil leakage; and the front oil seal of the crankshaft is installed on the oil pump housing, The heat generated by the high-speed operation of the inner rotor of the oil pump will cause the expansion of the oil pump casing, and the seal failure be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F7/00F02F11/00F01M1/02F01M11/00
CPCF02F7/0021F02F11/00F01M1/02F01M11/0004F01M2001/0284
Inventor 梁振杰
Owner GUANGXI YUCHAI MASCH CO LTD
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