Low-energy-consumption braking switch

A brake switch, low energy consumption technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of easy damage to contact parts, large inertial force of rocker arm movement, leakage of HPD mechanism, etc. The effect of expanding the scope of application and improving reliability

Active Publication Date: 2017-08-18
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the report of the company (SAE 2016-01-8061), the HPD mechanism has problems such as serious leakage
In addition, this mechanism also has problems such as the large number of moving parts and large mass caused by the installation of the driving and adjusting mechanisms on the braking side on the brake rocker arm, which is not conducive to the low energy consumption of the valve drive system; in addition, the motion inertia of the rocker arm The force is large, and the contact parts of the system components are prone to damage
The drive oil of this mechanism is led from the inside of the shaft as the fixed fulcrum of the rocker arm to the movable fulcrum of the rocker arm to adjust the drive and brake adjustment mechanism. The oil circuit is relatively complicated and difficult to process.

Method used

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Embodiment Construction

[0018] The invention relates to a low energy consumption braking switch. Figure 1-4 They are schematic diagrams of the four implementations of the brake switch. It also includes a first hydraulic piston 7A, a second hydraulic piston 7B, a spool valve body 1 , a spool return spring 2 , a one-way valve spool 3 and a one-way valve return spring 4 . A mounting hole, a driving oil passage 01 , an oil draining oil passage 02 and a control oil passage 03 are arranged in the fixing part 8 . Both the first hydraulic piston 7A and the second hydraulic piston 7B are installed in the fixed part 8 or the piston bushing T2 fixed on the fixed part 8, or after the first hydraulic piston 7A and the second hydraulic piston 7B are nested, they are installed In the fixed part 8 or in the piston bushing T2 fixedly arranged on the fixed part 8 . The oil chamber between the first hydraulic piston 7A and the second hydraulic piston 7B is connected with the driving oil circuit 01 . The spool valve...

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Abstract

The invention discloses a low-energy-consumption braking switch and belongs to the field of engine valve driving and auxiliary braking. The low-energy-consumption braking switch comprises two hydraulic pistons arranged on a fixing part, a sliding valve body, a sliding valve return spring, a one-way valve core, a one-way valve return spring and the like. The driving modes and the braking modes are switched through a braking switch; and through match with different valve driving systems, the different schemes of various modes including the four-stroke driving mode, the two-stroke driving mode, the four-stroke braking mode, the two-stroke braking mode and the like can be achieved, and high-power, low-oil-consumption, low-emission and efficient graded braking is achieved. The low-energy-consumption braking switch is simple and compact in structure, high in reliability and low in cost.

Description

technical field [0001] The invention relates to a brake switch with low energy consumption, which belongs to the field of valve driving and auxiliary braking. Background technique [0002] With the rapid increase of the number of engines, the problem of driving safety has become one of the major problems restricting the sustainable development of our country. More and more countries list auxiliary braking system as one of the necessary accessories for vehicles. However, most of the current auxiliary braking systems have problems such as easy overheating of braking components, rapid reduction of braking efficiency, low controllability of braking efficiency, easy deviation of the vehicle during braking, and the space occupied by the braking system. Among the current engine auxiliary braking technologies, the decompression auxiliary braking technology has the best braking effect. It opens the exhaust valve with a small opening near the compression top dead center on the basis ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L13/06F01L13/00F01L1/344
CPCF01L1/34413F01L13/00F01L13/06
Inventor 崔靖晨隆武强田华周红秀王阳刘威
Owner DALIAN UNIV OF TECH
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