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Engine retarder

A retarder and engine technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of poor reliability and complex structure, and achieve the effect of high retardation

Inactive Publication Date: 2013-08-21
田丽欣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the engine retarders used in China are all controlled by oil circuits, and their structures are relatively complex and their reliability is relatively poor.

Method used

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  • Engine retarder
  • Engine retarder
  • Engine retarder

Examples

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Embodiment Construction

[0018] Attached below figure 1 to attach Figure 7 The present invention will be further described.

[0019] 1. As attached figure 1 The engine retarder shown includes a tappet 11, a cam 10 positioned below the tappet 11 for driving the tappet 11 to move up and down, a push rod vertically installed on the tappet 11, a conduit installed on the cylinder head, The valve 9 slidingly installed in the conduit and the valve rocker arm 2 rotatably installed through the rotating shaft 1, one end of the valve rocker arm 2 is rotatably connected to the top of the push rod, and the other end of the rocker arm 2 is located at the end of the valve 8 Directly above, the upper part of the valve 8 is equipped with a spring seat 6, the valve spring 7 is inserted on the valve 8 and its two ends are respectively clamped between the spring seat 6 and the guide tube, and a The depressing device of the swing arm 2 is pressed downwards at the same time. Above-mentioned depressing device comprises...

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Abstract

The invention relates to an engine retarder which comprises a tappet, a cam, a push rod, a guide pipe, an air valve and an air valve rocker. The cam is arranged below the tappet and used for driving the tappet to move up and down, the push rod is vertically arranged on the tappet, the guide pipe is arranged on a cylinder cover, the air valve is arranged in the guide pipe in a sliding mode, and the air valve rocker is arranged in a rotating mode through a rotating shaft. One end of the air valve rocker is connected with the top end of the push rod in a rotatable mode, and the other end of the air valve rocker is arranged above the air valve. A spring seat is arranged on the upper portion of the air valve, an air valve spring is inserted in the air valve, and two ends of the air valve spring are respectively clamped between the spring seat and the guide pipe. The engine retarder further comprises a pressing device which presses down the air valve rocker when the cam rotates to an interval angle area. After the air valve is opened, and when the pressing device makes the air valve to return, the air valve is blocked by the air valve rocker and can not be closed completely, a throttle clearance is formed, and the retardance effect is achieved. Moreover, the rotation angle of the supporting cam can be automatically adjusted according to the rotation speed of an engine, so that the purpose that a good retardance function exists at any rotation speed is achieved.

Description

technical field [0001] The invention relates to the technical field of internal combustion engines, in particular to an engine retarder. Background technique [0002] At the beginning of 2012, the Ministry of Industry and Information Technology issued the "Notice on Further Improving the Safety and Technical Performance of Large and Medium-sized Passenger and Truck Vehicles, Strengthening Vehicle <Announcement> Management and Registration Management", "Dangerous goods transport vehicles and trucks with a total mass of more than 12 tons should be equipped with retarders or other auxiliary braking devices". "From March 1, 2012, the newly finalized dangerous goods transport vehicles and passenger cars and trucks with a total mass greater than 12 tons shall meet the above requirements; since September 1, 2012, the production of dangerous goods transport vehicles, Passenger cars and trucks with a total mass greater than 12 tons shall meet the above requirements." [0003...

Claims

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Application Information

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IPC IPC(8): F01L13/06F01L9/04
Inventor 田丽欣田丽芳陈德阳张秀荣孙诗萌
Owner 田丽欣
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