Integral sealing scraper for camshaft phase machine of vehicle engine VVT system

A technology for automobile engines and camshafts, which is applied to the sealing device of the engine, engine components, machines/engines, etc. It can solve the difficulty of monitoring scrapers and shrapnel, missed or wrong installation of scrapers and shrapnel, and increase parts manufacturing Cost and other issues, to achieve the effect of improving product quality control, simplifying structure and precision, and improving service life

Inactive Publication Date: 2017-03-22
JIANGSU PACIFIC PRECISION FORGING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the existing scraper-plus-shrapnel structure makes it difficult to monitor the scraper and shrapnel during product assembly, and there are dead spots in monitoring, so that the scraper and shrapnel are missing or wrongly installed; and the scraper-plus-shrapnel structure, by Composition of two parts increases the manufacturing cost, logistics and storage cost, quality control cost of the part, and the product assembly efficiency is low

Method used

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  • Integral sealing scraper for camshaft phase machine of vehicle engine VVT system
  • Integral sealing scraper for camshaft phase machine of vehicle engine VVT system
  • Integral sealing scraper for camshaft phase machine of vehicle engine VVT system

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Embodiment 1)

[0023] See Figure 1 to Figure 3 , the present invention is an integral sealing scraper for a camshaft phaser of an automobile engine VVT ​​system, which has a scraper 1; The sealing surface 5 and the sealing surface 6 at the upper and lower ends are integrally set in a U shape. The two sides of the U-shaped opening of the scraper 1 are bent to form an upper elastic piece 7 and a lower elastic piece 8 with a central symmetry and a linear increase in elastic force; the upper elastic piece 7 and the lower elastic piece 8 are formed. The shrapnel 8 is provided with a small window gap for improving the stability of the phaser; the upper shrapnel 7 and the lower shrapnel 8 are both formed by a straight line parallel to the main sealing surface 3, near the center of the scraper 1 and low near the end face of the scraper 1. The arc line segment is integrally formed with the bending segment that is bent toward the main sealing surface 3 through the transition of the fillet.

[0024] ...

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Abstract

The invention relates to an integral sealing scraper for a camshaft phase machine of a vehicle engine VVT system. The integral sealing scraper has a scraper; the scraper is blanked and bent through a flat plate to form a U shape integrated by a main sealing surface, a left side sealing surface, a right side sealing surface and end sealing surfaces at the upper and lower two ends; two side ports of the U shape of the scraper are bent to form an upper elastic piece and a lower elastic piece, which are symmetric about center and have linearly increased elastic force; small window gaps for improving stability of the phase machine are respectively formed in the upper elastic piece and the lower elastic piece; and the upper elastic piece and the lower elastic piece integrally consist of straight line sections parallel to the main sealing surface, arc line sections with one low parts near the center of the scraper and one high parts far from the center of the scraper, and bent sections transited through round angles and bent to the main sealing surface. The scraper adopts a metal material to improve wear resistance so as to prolong the service life of the phase machine; the smoothness of the sealing surface of the scraper is improved, so that the sealing effect is good, and the internal friction force of the phase machine is reduced; and the scraper is simple in part machining and assembly, and increases the assembly production pass percent.

Description

technical field [0001] The invention relates to the technical field of manufacturing a camshaft phaser of a VVT system for an automobile engine, in particular to an integral sealing scraper for a camshaft phaser of a VVT system of an automobile engine. Background technique [0002] VVT system is widely used in new gasoline and diesel automobile engines, it can increase engine power, torque, and reduce fuel consumption and exhaust emissions. The camshaft phase adjuster is an important executive component in the variable valve timing system. It controls the camshaft phaser by switching the oil channel to the camshaft phaser by the oil control valve according to the control signal sent by the engine ECU control system. angle, so as to achieve the purpose of precise control of valve timing. [0003] The VVT ​​system outputs the control signal to the OCV valve from the car ECU. The OCV valve pushes the spool through electromagnetic force to realize the hydraulic oil circuit cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/344F02F11/00
CPCF01L1/3442F01L2001/34479
Inventor 王国华黄浩狄雷夏汉关
Owner JIANGSU PACIFIC PRECISION FORGING
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