Cylinder-deactivation tappet device of engine

An engine and relative motion technology, applied in the direction of engine components, engine control, machine/engine, etc., can solve the problems of difficult engine cylinder technology and small installation space, and achieve high practical value, reduce fuel consumption, and reduce emissions.
CN102400731AInactive Publication Date: 2012-04-04SAIC MOTOR
6 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SAIC MOTOR
Publication Date
2012-04-04
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a cylinder-deactivation tappet device of an engine. The cylinder-deactivation tappet device comprises a shell, a bracket and lock pin components, wherein the shell covers a valve mechanism, the upper end of the shell is closed, and the shell is contacted with a cam; at least two openings are arranged on the side wall of the shell; the bracket is arranged inside the shell, and one end of the bracket is pressed against a valve rod of the valve mechanism by using a first elastic part which is clamped between the bracket and the shell; and the lock pin components are arranged in each opening and constructed to be in contact fit with the bracket during normal operation of the engine to keep the shell and the bracket from relatively moving, and during cylinder deactivation of the engine, the lock pin components are separated from the bracket to make the shell capable of moving relative to the bracket under the action of the cam. By adoption of the cylinder-deactivation tappet device of the engine, long-lift and zero-lift two-stage adjustment of valve lift can be realized, so that valve movement can be stopped when necessary so as to cause cylinder deactivation of the engine to reduce oil consumption and discharge of harmful gas; and an original tappet can be directly replaced with the cylinder-deactivation tappet device without replacement of a cylinder cover of the engine. Therefore, the cylinder-deactivation tappet device is good in technical expansibility and high in practical value.
Need to check novelty before this filing date? Find Prior Art

Description

【Technical field】

[0001] The invention relates to a tappet device, in particular to an engine deactivation tappet device capable of realizing two-stage adjustable lift of a valve mechanism in long lift and zero lift. The invention belongs to the technical field of automobiles. 【Background technique】

[0002] In order to ensure that the car has sufficient power when accelerating or climbing a slope, it is necessary to reserve reserve power for the engine during design. This will cause the engine to often work under low-load conditions, thereby causing problems such as low efficiency and high fuel consumption. In this regard, engine cylinder deactivation technology can be used to solve it. "Engine cylinder deactivation" refers to stopping the work of certain cylinders in the engine cylinders under specific working conditions, and at the same time stopping the movement of the valves. Therefore, in order to ensure that the total output power of the engine remains unchanged, the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More