JPS63202720U

JPS63202720U -

Info

Publication number: JPS63202720U
Application number: JP9486087U
Authority: JP
Priority date: 1987-06-20
Filing date: 1987-06-20
Publication date: 1988-12-27

Description

[Brief explanation of drawings]

第１，２図は本考案を具体化した一実施例を示
し、第１図はピストン冷却状態を示す要部縦断面
図、第２図は潤滑状態を示す要部縦断面図、第３
図は本考案の別例を示す要部縦断面図である。ピストン……１、下端開口……１ａ、噴射ノズ
ルを構成するノズル本体３及び噴射管……６、コ
ネクテイングロツド……７、頂面……７ａ、頂壁
……９、反射誘導面……１０，１１、噴射軸線…
…Ａ，Ｃ。 Figures 1 and 2 show an embodiment of the present invention, in which Figure 1 is a vertical sectional view of the main part showing the piston cooling state, Figure 2 is a vertical sectional view of the main part showing the lubrication state, and Figure 3 is a longitudinal sectional view of the main part showing the piston cooling state.
The figure is a longitudinal sectional view of a main part showing another example of the present invention. Piston...1, Lower end opening...1a, Nozzle body 3 and injection pipe constituting the injection nozzle...6, Connecting rod...7, Top surface...7a, Top wall...9, Reflection guiding surface... ...10,11, Injection axis...
...A,C.

Claims

[Scope of utility model registration request]

The inlet and outlet of an annular passage are drilled on the inner surface of the top wall of the piston, which is reciprocated up and down by a connecting rod with an oil introduction hole drilled in the top surface of the connection part with the piston. An injection nozzle communicating with the oil passage is provided at the lower end of the cylinder that guides the reciprocating motion, and the injection axis of the nozzle is inclined with respect to the direction of the reciprocating movement of the piston, and the injection nozzle is located at the top dead center side of the piston. The oil is disposed so as to be directed toward the entrance of the annular passage, and when the piston is at the bottom dead center side near the entrance of the annular passage, the oil is injected into the introduction hole of the connecting rod, intersecting the injection axis. The oil supply structure inside the piston has a reflective guiding surface that guides the flow.