JPH0399809U

JPH0399809U -

Info

Publication number: JPH0399809U
Application number: JP920890U
Authority: JP
Priority date: 1990-01-31
Filing date: 1990-01-31
Publication date: 1991-10-18

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例としてのクリアラン
ス調整層付きロータリバルブ装置の要部を第４図
に対応させて模式的に示す縦断面図であり、第２
〜５は従来のロータリバルブ装置を示すもので、
第２図は従来のロータリバルブ装置を装備した自
動車用エンジンの平面視断面図、第３図はその側
断面図、第４図はそのハウジングの取付状態の他
の例を示すロータリバルブの要部の模式的な縦断
面図、第５図はそのバルブ開放タイミングの例を
示す図である。１……エンジン、１Ａ……燃焼室、１ａ……シ
リンダヘツド部分、１ｂ……シリンダブロツク、
２ａ〜２ｄ……シリンダ、３……インテークマニ
ホルド、４……ロータリバルブ、５……吸気弁、
６……排気弁、７……エキゾストマニホルド、１
０……クランクシヤフト、１１……ロータ、１２
……ロータバタフライ、１３……流路、１３ａ…
…流入孔、１３ｂ……流出孔、１４……ハウジン
グ、１４ａ……ハウジング１４の内周面、１４ａ
′……ハウジング１４の内周面１４ａの取付後の
断面形状、１５……シリンダヘツド１ａの壁部、
１６……ボルト、１７……クリアランス調整層、
１７ａ……クリアランス調整層１７の変形後で切
削前の表面、１７ｂ……クリアランス調整層１７
の切削後の表面。 FIG. 1 is a vertical sectional view schematically showing the main parts of a rotary valve device with a clearance adjustment layer as an embodiment of the present invention, corresponding to FIG.
~5 shows a conventional rotary valve device,
Fig. 2 is a plan view sectional view of an automobile engine equipped with a conventional rotary valve device, Fig. 3 is a side sectional view thereof, and Fig. 4 is a main part of the rotary valve showing another example of the mounting state of the housing. FIG. 5 is a schematic longitudinal sectional view of the valve opening timing. 1...Engine, 1A...Combustion chamber, 1a...Cylinder head part, 1b...Cylinder block,
2a to 2d...Cylinder, 3...Intake manifold, 4...Rotary valve, 5...Intake valve,
6...Exhaust valve, 7...Exhaust manifold, 1
0...Crankshaft, 11...Rotor, 12
...Rotor butterfly, 13...Flow path, 13a...
...Inflow hole, 13b...Outflow hole, 14...Housing, 14a...Inner peripheral surface of housing 14, 14a
'...Cross-sectional shape of the inner circumferential surface 14a of the housing 14 after installation, 15... Wall portion of the cylinder head 1a,
16...Bolt, 17...Clearance adjustment layer,
17a... Surface of clearance adjustment layer 17 after deformation and before cutting, 17b... Clearance adjustment layer 17
surface after cutting.

Claims

[Scope of utility model registration request]

A housing, an inflow hole and an outflow hole formed in the housing, a rotor inserted and pivotally mounted in the housing, and a predetermined hole of the rotor to open and close a flow path between the inflow hole and the outflow hole. In a rotary valve device equipped with a valve body provided at a certain position, a part of the housing that comes into sliding contact with the rotor is cut as the rotor rotates to automatically adjust the clearance between the rotor and the housing. A rotary valve device with a clearance adjustment layer, characterized in that a clearance adjustment layer is provided, and the clearance adjustment layer is formed in consideration of an amount of deformation due to attachment of the housing.