JPH0191036U

JPH0191036U -

Info

Publication number: JPH0191036U
Application number: JP18811187U
Authority: JP
Priority date: 1987-12-09
Filing date: 1987-12-09
Publication date: 1989-06-15
Anticipated expiration: 2002-12-09
Also published as: JPH0649860Y2

Description

[Brief explanation of drawings]

第１図乃至第４図は本考案の実施例を示し、第
１図は渦流室周辺の縦断正面図、第２図はシリン
ダヘツドの要部横断平面図、第３図は位置決め用
筒形ピン周辺の拡大縦断正面図、第４図はこの筒
形ピン周辺の拡大横断平面図であり、第５図及び
第６図は従来例を示し、第５図は第１図相当図、
第６図は第５図のＣ部の拡大平面図である。１……主燃焼室、２……渦流室、３……渦流室
周壁、４……シリンダ、５……シリンダブロツク
、６……シリンダヘツド、７……シリンダジヤケ
ツト部分、８……ヘツドジヤケツト部分、９……
噴口、１０……口金嵌合孔、１１……渦流室口金
、１３……位置決め用嵌合孔、１４……位置決め
用筒形ピン、１５……１４の筒孔、１６……筒孔
の上端部、１７……導水孔、１８……導水溝、１
９……通水口、２０……７の上壁。 Figures 1 to 4 show an embodiment of the present invention, with Figure 1 being a longitudinal sectional front view around the swirl chamber, Figure 2 being a cross-sectional plan view of the main part of the cylinder head, and Figure 3 being a positioning cylindrical pin. FIG. 4 is an enlarged cross-sectional plan view of the periphery of the cylindrical pin, FIG. 5 and FIG. 6 show conventional examples, and FIG. 5 is a view equivalent to FIG.
6 is an enlarged plan view of section C in FIG. 5. FIG. 1... Main combustion chamber, 2... Swirl chamber, 3... Swirl chamber peripheral wall, 4... Cylinder, 5... Cylinder block, 6... Cylinder head, 7... Cylinder jacket part, 8... Head jacket part , 9...
Nozzle, 10...Cap fitting hole, 11...Swirl chamber cap, 13...Fitting hole for positioning, 14...Cylindrical pin for positioning, 15...14 cylindrical hole, 16...Top end of cylindrical hole Part, 17...Water guide hole, 18...Water guide groove, 1
9...Water port, 20...Top wall of 7.

Claims

[Scope of utility model registration request]

A swirl chamber peripheral wall 3 surrounding the swirl chamber 2 of the pre-chamber type swirl chamber type combustion chamber of the water-cooled diesel engine E is formed inside the cylinder head 6 at a position eccentric from the main combustion chamber 1. A swirl chamber cap 11 is fitted and fixed into a cap fitting hole 10 formed in the lower half, and a nozzle 9 is opened diagonally downward toward the axis of the main combustion chamber 1 in the bottom wall of the swirl chamber cap 11. In a swirl chamber cap attachment device for a pre-chamber swirl chamber type combustion chamber of a water-cooled diesel engine, a portion of the swirl chamber cap 11 and a cap fitting hole 10 are located outside the outer peripheral surface of the main combustion chamber 1 between the fitting surfaces of the swirl chamber cap 11 and the cap fitting hole 10. By drilling a positioning fitting hole 13 in the positioning part and fitting the positioning cylindrical pin 14 into the positioning fitting hole 13, the swirl chamber cap 11 is positioned in the circumferential direction, and the vortex chamber cap 11 is positioned near the cylindrical pin 14. A water guide hole 17 is formed in the upper wall 20 of the cylinder jacket portion 7 of the cylinder block 5, and a water guide groove 18 is formed between the contact surfaces 21 between the cylinder block 5 and the cylinder head 6. A water inlet 19 is opened at the end, and the cylindrical hole 1 of the cylindrical pin 14 is opened.
The upper part 16 of the cylinder head 6 is connected to the swirl chamber peripheral wall 3 of the cylinder head 6.
A water-cooled diesel engine characterized in that the head jacket part 8 is connected to the head jacket part 8 on the outer periphery of the cylinder jacket part 7, and the head jacket part 8 is connected to the cylinder jacket part 7 through a water guide hole 17, a water guide groove 18, a water inlet 19, and a cylindrical hole 15. Swirl chamber cap attachment device for the sub-chamber type vortex chamber type combustion chamber.