Belt pulley system of engine

A pulley and engine technology, applied in machine/engine, belt/chain/gear, transmission, etc., can solve problems such as structural interference, and achieve the effect of changing resonance characteristics and preventing abnormal noise

Pending Publication Date: 2020-08-28
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the application of the pulley separator improves the durability and noise of the belt and tensioner, this structure causes noise-vibration-harshness (NVH) due to the interference between the structures

Method used

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  • Belt pulley system of engine
  • Belt pulley system of engine
  • Belt pulley system of engine

Examples

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Embodiment Construction

[0016] It will be understood that the term "vehicle" or "vehicular" or other similar terms as used herein generally includes motor vehicles, for example passenger cars including sport utility vehicles (SUVs), buses, trucks, commercial vehicles of all kinds; Ships including boats, watercraft, aircraft, etc.; and including hybrid vehicles, electric vehicles, combustion vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g., fuels from non-petroleum sources) .

[0017] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will be further understood that when used in this specification, the words "comprising" and / or "comprising" specify the presence of stated features, integers, steps,...

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PUM

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Abstract

A belt pulley structure of an engine is provided to prevent abnormal noise from generating between a belt pulley and a torsional vibration damper. The belt pulley structure includes a stepped portionthat is formed in a shape that blocks a cavity in a radial direction thereof. The cavity is formed at a portion where a belt pulley and a torsional vibration damper face each other.

Description

technical field [0001] The present invention relates to a pulley structure of an engine, and more particularly, to a pulley structure that prevents abnormal noise from being generated between the pulley and a torsional vibration damper. Background technique [0002] Such as figure 1 As shown, a mild hybrid vehicle configuration with a 48V battery installed is to omit the alternator of a conventional vehicle and install a 48V battery, a direct current / direct current (DC / DC) converter, and a mild hybrid starter generator (MHSG) Structure. The mild hybrid structure of 48V receives the power required by the vehicle through the electric motor in the operating range such as starting and acceleration, and has the advantage of improving the fuel efficiency of the vehicle through the regenerative braking function that resumes during vehicle braking The energy generated and stored in the battery. [0003] However, due to the frequent starting of MHSG and the use of torque assist an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/36F16F15/124
CPCF16H55/36F16F15/124F16H2055/366F16F15/1442Y02T10/62F16H57/0006F16H41/24F02B67/06F16D41/04F16F15/063F16F15/10
Inventor 宋缮永文晶焕
Owner HYUNDAI MOTOR CO LTD
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