Structure for attaching oil jet valve

Patent metadata

Field	Value
Publication number	US-9822676-B2
Application number	US-201515110234-A
Country	US
Kind code	B2
Filing date	Jan 15, 2015
Priority date	Jan 17, 2014
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

A structure for attaching an oil jet valve includes a bracket secured to an internal combustion engine with a seal member, an attachment concavity extending through the interior of the bracket, an insertion hole extending through the interior of the internal combustion engine, an oil jet valve, a first stepped part formed in the oil jet valve, a second stepped part formed in the attachment concavity, and an interlocking member. The width of a wide part of the first stepped part is less than the width of a narrow part of the second stepped part. The width of the wide part of the first stepped part is less than the width of a portion, of the inner surface of the attachment concavity, that faces the wide part of the first stepped part.

First claim

The invention claimed is:

1. An oil jet valve coupling structure comprising:
a bracket fixed to an internal combustion engine with a seal member located in between;
a coupling recess that extends inside the bracket and opens in an opposing surface opposed to the internal combustion engine;
a socket that extends inside the internal combustion engine and opens in an opposing surface opposing the bracket;
an oil jet valve including a first end and a second end, wherein the oil jet valve is coupled to the internal combustion engine with the first end fitted into the coupling recess and the second fitted into the socket;
a step-shaped first step formed on the oil jet valve, wherein the first step includes a wide portion, which is where the oil jet valve has a large width in a direction orthogonal to a direction in which the oil jet valve is fitted into the coupling recess and which is a fitted portion of the oil jet valve fitted into the coupling recess, and a narrow portion, which is formed closer to the internal combustion engine than the wide portion and which is where the oil jet valve has a small width in the orthogonal direction;
a step-shaped second step formed in the coupling recess, wherein the second step includes a wide portion, which is where the coupling recess has a large width in the orthogonal direction, and a narrow portion, which is formed closer to the internal combustion engine than the wide portion and which is where the coupling recess has a small width in the orthogonal direction; and
a securing member located between the first step and the second step, wherein
the wide portion of the first step has a smaller width than the narrow portion of the second step, and
the wide portion of the first step has a smaller width than a portion of an inner surface of the coupling recess opposed to the wide portion of the first step.

2. The oil jet valve coupling structure according to claim 1 , wherein
the oil jet valve includes an outer surface with a flange formed thereon projecting from the entire circumference of the oil jet valve;
the flange includes an edge that defines the wide portion of the first step;
the outer surface includes a portion closer to the internal combustion engine than the flange that defines the narrow portion of the first step;
the coupling recess includes an inner surface with an annular groove formed therein extending along the entire circumference of the oil jet valve;
the groove includes a bottom that defines the wide portion of the second step; and
the inner surface of the coupling recess includes a portion closer to the internal combustion engine than the groove that defines the narrow portion of the second step.

3. The oil jet valve coupling structure according to claim 1 , wherein the securing member is a snap ring.

4. The oil jet valve coupling structure according to claim 1 , wherein
the oil jet valve has a circular cross section in the direction orthogonal to the direction in which the oil jet valve is fitted into the coupling recess;
the wide portion of the first step is a large diameter portion where the oil jet valve has a large outer diameter, and the narrow portion of the first step is a small diameter portion where the oil jet valve has a small outer diameter;
the coupling recess has a circular cross section in the direction orthogonal to the direction in which the oil jet valve is fitted into the coupling recess;
the wide portion of the second step is a large diameter portion where the coupling recess has a large inner diameter, and the narrow portion of the second step is a small diameter portion where the coupling recess has a small inner diameter.

Assignees

• Toyota Motor Co Ltd
• Aisin Seiki

Inventors

• Takasaki Shinya
• Miyachi Eiji

Classifications

• F16N21/00

  Conduits; Junctions (in general F16L); Fittings for lubrication apertures · CPC title

• F01M1/08 Primary

  Lubricating systems characterised by the provision therein of lubricant jetting means · CPC title

• F01P3/06

  Arrangements for cooling pistons · CPC title

• F02F7/0068

  Adaptations for other accessories · CPC title

• F01M1/16

  Controlling lubricant pressure or quantity (rendering machines or engines inoperative or idling on lubricant pressure failure F01M1/22) · CPC title