Oil supply apparatus for vehicle

Patent metadata

Field	Value
Publication number	US-10486085-B2
Application number	US-201815869496-A
Country	US
Kind code	B2
Filing date	Jan 12, 2018
Priority date	Jan 31, 2017
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

An oil supply apparatus for a vehicle includes: an oil pump that supplies oil in an oil pan that stores the oil circulating in an engine; an oil supply passageway that supplies the oil from the oil pump to a lubricating part and a hydraulic actuating part of the engine; and a bubble separating unit that is provided in the oil supply passageway and separates bubbles contained in the oil.

First claim

What is claimed is:

1. An oil supply apparatus for a vehicle, comprising:
an oil pump that supplies oil in an oil pan that stores the oil circulating in an engine;
an oil supply passageway that supplies the oil from the oil pump to a lubricating part and a hydraulic actuating part of the engine; and
a bubble separating unit that is provided in the oil supply passageway and separates bubbles contained in the oil,
wherein the bubble separating unit includes a volume portion provided in the oil supply passageway and having a predetermined flow path cross-sectional area, and
wherein the volume portion is disposed at a branch portion of the oil supply passageway which is divided into the hydraulic actuating part and the lubricating part, and the volume portion is configured to supply the hydraulic actuating part with the oil from which the bubbles are separated, and supply the lubricating part with the oil containing a predetermined amount of separated bubbles.

2. The oil supply apparatus according to claim 1 ,
wherein the oil supply passageway includes:
a first oil passageway that supplies the oil from the oil pump to the volume portion;
a second oil passageway that connects the volume portion and the hydraulic actuating part to each other; and
a third oil passageway that connects the volume portion and the lubricating part to each other, and

a connecting portion between the second oil passageway and the volume portion is disposed below a connecting portion between the first oil passageway and the volume portion.

3. The oil supply apparatus according to claim 2 ,
wherein a connecting portion between the third oil passageway and the volume portion is disposed at a same height as or above the connecting portion between the first oil passageway and the volume portion.

4. The oil supply apparatus according to claim 2 ,
wherein a cross-sectional area of a boundary portion between the volume portion and the first oil passageway is larger than a cross-sectional area of the first oil passageway.

5. The oil supply apparatus according to claim 1 ,
wherein the bubble separating unit is disposed at an upstream side from the hydraulic actuating part in the oil supply passageway.

6. The oil supply apparatus according to claim 1 ,
wherein the hydraulic actuating part includes a variable valve timing mechanism and a lash adjuster.

7. The oil supply apparatus according to claim 1 ,
wherein the lubricating part includes a cam shower for supplying the oil to a cam shaft.

8. An oil supply apparatus for a vehicle, comprising:
an oil pump that supplies oil in an oil pan that stores the oil circulating in an engine;
an oil supply passageway that supplies the oil from the oil pump to a lubricating part and a hydraulic actuating part of the engine; and
a bubble separating unit that is provided in the oil supply passageway and separates bubbles contained in the oil,
wherein the bubble separating unit includes
a volume portion provided in the oil supply passageway and having a predetermined flow path cross-sectional area, and
a vibration generating unit disposed in the volume portion,

wherein the volume portion is disposed at a branch portion of the oil supply passageway which is divided into the hydraulic actuating part and the lubricating part, and the volume portion is configured to supply the hydraulic actuating part with the oil from which the bubbles are separated, and supply the lubricating part with the oil containing a predetermined amount of separated bubbles.

9. The oil supply apparatus according to claim 8 ,
wherein the oil supply passageway includes:
a first oil passageway that supplies the oil from the oil pump to the volume portion;
a second oil passageway that connects the volume portion and the hydraulic actuating part to each other; and
a third oil passageway that connects the volume portion and the lubricating part to each other, and

a connecting portion between the second oil passageway and the volume portion is disposed below a connecting portion between the first oil passageway and the volume portion.

10. The oil supply apparatus according to claim 9 ,
wherein a connecting portion between the third oil passageway and the volume portion is disposed at a same height as or above the connecting portion between the first oil passageway and the volume portion.

11. The oil supply apparatus according to claim 10 ,
wherein a cross-sectional area of a boundary portion between the volume portion and the first oil passageway is larger than a cross-sectional area of the first oil passageway.

12. The oil supply apparatus according to claim 8 ,
wherein the bubble separating unit is disposed at an upstream side from the hydraulic actuating part in the oil supply passageway.

13. The oil supply apparatus according to claim 8 ,
wherein the hydraulic actuating part includes a variable valve timing mechanism and a lash adjuster.

14. The oil supply apparatus according to claim 8 ,
wherein the lubricating part includes a cam shower for supplying the oil to a cam shaft.

15. The oil supply apparatus according to claim 8 ,
wherein the vibration generating unit is provided to be in contact with the oil in the volume portion.

Assignees

• Aisin Seiki

Inventors

• Terada Mitsuru
• Matsushima Kazuya

Classifications

• F01M11/08 Primary

  Separating lubricant from air or fuel-air mixture before entry into cylinder (separating in general B01D) · CPC title

• F01M1/02

  using lubricating pumps (pumps in general F04; lubricating pumps per se F16N) · CPC title

• B01D19/0078 Primary

  by vibration · CPC title

• B01D2221/00

  Applications of separation devices · CPC title

• F01M11/02

  Arrangements of lubricant conduits · CPC title