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Valve gear control device for internal combustion engine

A technology for control devices and internal combustion engines, applied in valve devices, mechanical equipment, transportation and packaging, etc., can solve the problems of cumbersome processing and complicated oil circuit formation, and achieve the effects of improving sealing, realizing miniaturization, and improving installation rigidity.

Inactive Publication Date: 2010-07-14
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of using a single spool valve, not only the size of the spool valve itself becomes larger and the processing becomes complicated, but also the formation of the oil passage becomes complicated.
In addition, in the case of using multiple spool valves, in order to avoid interference with the increased oil passage, there will be a problem of increasing the size

Method used

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  • Valve gear control device for internal combustion engine
  • Valve gear control device for internal combustion engine
  • Valve gear control device for internal combustion engine

Examples

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no. 1 example

[0047] First, in figure 1 Among them, the internal combustion engine main body 20 of the V-type multi-cylinder internal combustion engine mounted on a vehicle has a rear cylinder bank BR, and is arranged in a V-shaped manner in front of the rear cylinder bank BR in cooperation with the rear cylinder bank BR. Cylinder bank BF. The rear bank BR is composed of a rear cylinder block 21R, a rear cylinder head 22R coupled to the upper end of the rear cylinder block 21R, and a rear cylinder head cover 23R coupled to the rear cylinder head 22R. The front bank BF is composed of a front cylinder block 21F, a front cylinder head 22F joined to the upper end of the front cylinder block 21F, and a front head cover 23F joined to the front cylinder head 22F. Also, the rear and front cylinder blocks 21R, 21F are integrally formed with the crankcase 24 .

[0048] Rear cylinder bank BR as figure 2 As shown, there are first, second and third cylinders C1 , C2 , C3 arranged in series from the ...

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Abstract

A valve gear control device for an internal combustion engine is adapted such that hydraulic pressure control means controls hydraulic pressure applied to a valve operation mode change mechanism. The hydraulic pressure control means has a holder mounted on a cylinder head, a spool valve formed by slidably installing a spool valve body in a valve body, and electromagnetic on-off valves for controlling hydraulic pressure in a pilot hydraulic pressure chamber. The holder (109) is constructed by integrally interconnecting a to-be-received section (109a) and a projection section (109b) by a connection section (109c). The to-be-received section (109a) is received between the head cover and the cylinder head (22R). The projection section (109b) projects outward from the cylinder head (22R) and the head cover and having the electromagnetic on-off valves (113, 114) mounted on the projection section (109b). A seal surface (116) between the connection section (109c) and the head cover is formed on the connection section (109c), and the valve body (110) is provided contiguous to the to-be-received section (109a) so as to be received between the head cover and the cylinder head (22R). This enhances sealing characteristics between the holder and the head cover.

Description

technical field [0001] The present invention relates to a valve control device for an internal combustion engine, which has a hydraulic valve operation state changing mechanism for switching the operation state of an internal combustion engine valve disposed in a cylinder head capable of opening and closing operations, and a valve control device for an internal combustion engine. A hydraulic control unit that controls the hydraulic pressure acting on the valve action state changing mechanism. Background technique [0002] For example, in Patent Document 1, etc., there is known a valve control device for an internal combustion engine in which a hydraulic pressure acting on a valve operating state changing mechanism is controlled by a hydraulic control unit, the hydraulic control unit is configured to have a retainer attached to the cylinder head a spool valve configured by accommodating a spool spool in a valve body connected to the retainer in a slidable manner, one end of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L13/00F02F1/24
CPCF01L2800/08F01L2001/3443F01L1/181F01L1/22F01L1/20F01L2001/028F01L2001/34433F01L2001/34426F02F1/24F02F2007/0063F01L2105/00F01L2810/02F01L2001/0535F01L1/267F01L13/0005Y10T137/86895F01L2305/00
Inventor 熊谷和英新里智则井川诚崇
Owner HONDA MOTOR CO LTD
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