Variable Air Valve System For Combustion Motor
An internal combustion engine, variable technology, applied in the direction of mechanical equipment, engine components, machines/engines, etc., can solve problems such as shortened maintenance cycle, unsuitable rocker arm switching, insufficient actuator stroke, etc., to reduce position accuracy, The effect of reducing the quantity and enhancing the machining accuracy
Inactive Publication Date: 2015-07-22
HONDA MOTOR CO LTD
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- Application Information
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Problems solved by technology
As a result, the service cycle of the connecting pin may be shortened due to wear (abrasion), or the amount of actuator stroke becomes insufficient, resulting in unsuitable control of switching between connecting and disconnecting the rocker arm
Method used
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Embodiment Construction
[0058] Now, embodiments of the present invention will be described hereinafter with reference to the accompanying drawings.
[0059] will refer to Figure 1 to Figure 4 A first embodiment of the present invention is described. First, in figure 1 In this case, the internal combustion engine may be, for example, a small engine mounted on a motorcycle. The engine block 10 of the internal combustion engine includes: a cylinder block 11 having a cylinder bore 12 in which a piston 13 is slidably fitted; a cylinder head 15 connected to the cylinder block 11 such that A combustion chamber 14 is defined between the cylinder block 11 , and the top of the piston 13 faces the combustion chamber;
[0060] The cylinder head 15 is provided with an intake port 18 and an exhaust port 19 communicating with the combustion chamber 14 . An intake system 21 having a fuel injection valve 20 is connected to the intake port 18 , and an exhaust system (not shown) is connected to the exhaust port 19...
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Provided is a variable air valve system for a combustion motor. In the variable air valve system, the pressing force transmission member at least comprises a push rod which forms part of the pressing force producing source. The housing of the pressing force producing source is installed to an engine body. The pressing force transmission member is designed for slidingly connected with one end of one of the connecting pins located at one end along the axial direction. The connecting pins are pressed by a side spring toward the axial direction in a tilted manner and are mutually contacted, thereby allowing axial motion between the connecting position where adjacent rocker arms are connected and the breaking position where the connection is broken, thus to simplify the supporting structure of the push rod in the pressing force producing source. The central section of the pressing force transmission member can slidingly support to the engine body. The contact surface of the pressing portion used for contacting with the sliding contact surface of the side end portion of the pressing port formed at the rod form a spherical shape, thereby enhancing the abrasion resistance capability of the pressing portion and the rod in the contact area thereof.
Description
[0001] Cross References to Related Applications [0002] This application claims priority to Japanese Patent Application No. 2010-199666 filed on September 7, 2010 and Japanese Patent Application No. 2010-221406 filed on September 30, 2010, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a variable valve system for an internal combustion engine, wherein a plurality of connecting pins are slidably fitted in a plurality of rocker arms, and the plurality of connecting pins are spring-biased toward one side in the axial direction. and contact each other, thereby allowing movement in the axial direction between a connection position for connecting adjacent rocker arms and a disconnection position for releasing the connection, the plurality of rocker arms being arranged adjacent to each other and A rocker arm connected to and operated in association with an engine valve is included, and the pressing force t...
Claims
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IPC IPC(8): F01L13/00F01L1/12
Inventor 藤久保诚片冈大久保克博藁品拓哉塙薰
Owner HONDA MOTOR CO LTD