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Exhaust brake for maintaining back pressure

A technology of exhaust braking and back pressure, which is applied to exhaust devices, engine components, combustion engines, etc., and can solve problems such as fuel efficiency decline and total weight increase

Inactive Publication Date: 2016-08-10
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the related art, since the check valve protrudes toward the engine, there is a design limitation in the layout of the engine compartment
In addition, since the housing is provided with the check valve installed therein, the overall weight of the vehicle increases, eventually degrading fuel efficiency

Method used

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  • Exhaust brake for maintaining back pressure
  • Exhaust brake for maintaining back pressure
  • Exhaust brake for maintaining back pressure

Examples

Experimental program
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Embodiment Construction

[0015] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0016] like Figures 1 to 4B As shown in , an exhaust brake according to an exemplary embodiment of the present disclosure includes a valve housing 100 installed in an exhaust pipe (not shown) and a butterfly valve 200 installed in the valve housing 100 .

[0017] like Figure 3A and Figure 3B As shown in , the valve housing 100 has passages through which the exhaust gas flows.

[0018] like Figure 3A As shown in , the butterfly valve 200 opens the channel of the valve housing 100, and as Figure 3B As shown, the butterfly valve 200 blocks the passage of the valve housing 100 .

[0019] The mandrel 120 is attached to the center portion of the butterfly valve 200 . The spindle 120 is rotatably mounted across the valve housing 100 . An actuator 130 that rotates the spindle 120 is mounted outside the valve housing 100 .

[0020] ...

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PUM

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Abstract

An exhaust brake includes a valve housing allowing an exhaust gas to flow therein. A butterfly gate is installed in the valve housing to block the exhaust gas flow and has a through hole for discharging a portion of the exhaust gas when a back pressure of the exhaust gas is equal to or higher than a reference pressure.

Description

[0001] Cross References to Related Applications [0002] This application is based upon and claims the benefit of priority from Korean Patent Application No. 10-2015-0014971 filed with the Korean Intellectual Property Office on Jan. 30, 2015, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to exhaust brakes, and more particularly, to exhaust brakes capable of constantly maintaining back pressure. Background technique [0004] Commercial vehicles with heavy loads, such as trucks, include exhaust brakes for deceleration when driving down hills or at high speeds by operating the foot brake as the primary braking device. Such an exhaust brake forcibly suppresses exhaust gas (exhaust gas) after combustion in a combustion chamber of the engine from being discharged into the air, thus enabling the engine to function as a compressor for obtaining braking power. [0005] When the emission of exhaust...

Claims

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Application Information

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IPC IPC(8): F02D9/06
CPCF02D9/06F01N5/00F01N13/08Y02T10/12
Inventor 赵载说
Owner HYUNDAI MOTOR CO LTD