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Multifunctional engine hydraulic drive control device

A drive control and engine technology, applied in the direction of engine components, machines/engines, fluid pressure actuators, etc., can solve the problem that there is not enough space to arrange the engine hydraulic drive device, the engine drive function and the automatic adjustment function of the valve clearance cannot be taken into account at the same time, etc. problem, to achieve the effect of compact structure

Active Publication Date: 2021-03-12
JIANSU JOINTEK PRECISION MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to overcome the problems that the existing engine valve mechanism has a compact structure, there is not enough space to arrange the engine hydraulic drive device, and the engine drive function and the automatic adjustment function of the valve clearance cannot be taken into account at the same time, the present invention provides a A multifunctional engine hydraulic drive control device

Method used

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  • Multifunctional engine hydraulic drive control device
  • Multifunctional engine hydraulic drive control device
  • Multifunctional engine hydraulic drive control device

Examples

Experimental program
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Effect test

Embodiment 1

[0043] The multifunctional engine hydraulic drive control device of the present invention can be used in a combined rocker arm type valve hydraulic drive device for an engine. The combined rocker arm type valve hydraulic drive device for an engine includes a rocker arm assembly 100, an exhaust valve group 300, and a valve bridge assembly 400 and limit assembly, the rocker arm assembly 100 includes a rocker arm shaft 170, a rocker arm body 110 and a drive oil circuit 120, the rocker arm shaft 170 is arranged in the rocker arm shaft hole 114, and the rocker arm body 110 is rotatably mounted on the rocker arm shaft 170 On, one end of the rocker arm body 110 is provided with a driving main piston 130, and the other end is provided with a first elephant foot assembly 140. The first elephant foot assembly 140 is an existing rocker arm elephant foot, which drives the main piston 130 and the main piston oil. Road 121 connects.

[0044] The valve bridge assembly 400 is located below th...

Embodiment 2

[0058] like Figure 7 Compared with Embodiment 1, the illustrated embodiment 2 differs only in that the drive control valve 150 is arranged on the rocker shaft 170, and the ends of the main piston oil passage 121 and the auxiliary piston oil passage 122 communicating with the drive control valve 150 are both An annular passage coaxial with rocker shaft 170 .

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Abstract

The multi-functional engine hydraulic drive control device of the present invention comprises a control valve carrier and a drive control valve. The control valve carrier is provided with a control valve hole, a hydraulic opening oil hole, a first drive oil hole, and a second drive Oil hole and lubricating oil hole, the drive control valve includes a control valve body, the control valve body is coaxial and slidably installed in the control valve hole, the elastic return component is installed on the control valve carrier, and the elastic return component is set in contact with the control valve body , the main and auxiliary oil passages of the control valve are opened on the control valve body, which are used in the single-valve main and auxiliary piston hydraulic drive device for the engine. When there is no oil pressure in the hydraulically opened oil hole, the second drive oil hole and the main oil passage of the control valve When the hydraulic opening oil hole is filled with oil, the control valve body moves up to the open position, and the main oil passage of the control valve is connected to the first driving oil hole and the second driving oil hole, which can realize different hydraulic pressures. Drives for hydraulic control of engines or other systems.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a multifunctional engine hydraulic drive control device. Background technique [0002] Engine retarders are increasingly used in medium-to-heavy commercial vehicles, where valve train-integrated engine braking systems are becoming more popular due to their low cost, high performance and reliability, and compact structure. One approach to engine braking system integration is to incorporate brake valve lift into the positive power cam and incorporate a "loose" device in the valvetrain to hide or inhibit the engine from performing the brake lift of the valves while in positive power mode. Procedure. The "idle" integrated engine braking system described above requires different oil supply pressure systems, the lower oil pressure system is used for lubrication or hydraulic lash adjusters operating at positive power of the engine, and the higher oil pressure system is used to drive th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L9/10F15B13/02F15B21/00
CPCF15B13/02F15B13/027F15B21/00
Inventor 崔立澜
Owner JIANSU JOINTEK PRECISION MASCH CO LTD