Mechanical flameout tappet for engine
A mechanical and engine technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of increased production cost, moment of inertia and cost, etc., to reduce processing costs, facilitate switching, and achieve good versatility. Effect
Active Publication Date: 2010-11-17
JAPHL POWERTRAIN SYST
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Problems solved by technology
[0003] At present, in the mechanism for switching the working state of the valve driven by the overhead cam of the engine, one is realized by adding a rocker shaft. For example, in the published patent No. 200810212111. The arm and the zero-lift cam cooperate to realize cylinder killing. From the perspective of cylinder killing, this structure adds a rocker shaft and a zero-lift cam, which increases the moment of inertia and cost
The other is realized by means of compound cam, such as the camshaft in the publicized patent No. 200810097332.0, which can realize the variable displacement of the engine, that is, realize the cylinder killing, and adopt a normal lift cam and two zero lift cams The form realizes cylinder killing so that the number of cams is increased to three, which increases the production cost
Method used
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[0029] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the role and working principle of the various parts, etc., will be further described. Detailed instructions:
[0030] as attached Figure 1-Figure 5 As shown, the present invention is a mechanical cylinder-deactivation tappet of an engine, which includes a tappet housing 1 and a valve rod 16. The mechanical cylinder deactivation tappet of the engine also includes a spring seat 2, a return spring 3, a locking Pin I 4, locking pin II11, locking spring 24, the spring seat 2 is set in the tappet housing 1, and the cavity 22 formed by the spring seat 2 and the tappet housing 1 is installed in a resilient state The return spring 3 of the tappet housing 1 is provided with a hole-like structure 23 penetrating through both sides of the...
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The invention provides a mechanical flameout tappet for an engine, which is applied to the field of engine distribution. A spring retainer (2) of the mechanical flameout tappet for the engine is sleeved in a tappet shell (1); a return spring (3) in a forced state is arranged in a cavity (22) formed by the spring retainer (2) and the tappet shell (1); the middle part of the tappet shell (1) is provided with a hole-like structure (23) which passes through the side of the tappet shell (1); the middle position of the hole-like structure (23) is provided with a lock spring (24); a lock pin I (4) and a lock pin II (11) are arranged on the two sides of the lock spring (24); the spring (24) is pressed against a stepped face (27); and both the side I (28) of the lock pin I (4) and the side II (29) of the lock pin II (11) are communicated with an external oil groove (19). Through the structure of the invention, the engine can work with variable displacement by regulating the lift range of an engine valve.
Description
technical field [0001] The invention relates to the field of engine gas distribution, and more specifically, relates to a mechanical cylinder stop tappet of an engine. Background technique [0002] The engine variable displacement technology is the best solution to solve the high fuel consumption and low efficiency of the engine caused by the actual output power greatly exceeding the actual used power during the driving process of the automobile engine. It achieves the purpose of saving fuel by optimizing the working process of the engine in a planned way, improving the volumetric efficiency and combustion efficiency of the engine, and reducing the remaining power output, so as to reduce fuel consumption. The average fuel saving rate is around 3% to 8%. It is a technology with very broad application prospects. [0003] At present, in the mechanism for switching the working state of the valve driven by the overhead cam of the engine, one is realized by adding a rocker shaft...
Claims
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Inventor 王震
Owner JAPHL POWERTRAIN SYST