OIL LUBRICATING STRUCTURE

• US 20090107769A1
• Filed: 10/27/2008
• Published: 04/30/2009
• Est. Priority Date: 10/29/2007
• Status: Abandoned Application

• Current Assignee: Aisin AW Company Limited (Aisin Corp.), Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Aisin AW Company Limited (Aisin Corp.), Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Sato, Akihiro, Motoike, Kazutoshi, Matsushita, Junji
• Application Number:
  US12/258,776
• Publication Number:
  US 20090107769A1
• Time in Patent Office: Days
• US Class Current: 184/6.200
• CPC Class Codes: B60K 1/02 comprising more than one electric motor
• CPC Class Codes: B60K 6/365 with the gears having orbital motion
• CPC Class Codes: B60K 6/405 Housings
• CPC Class Codes: B60K 6/445 Differential gearing distribution type
• CPC Class Codes: B60K 6/547 the transmission being a stepped gearing
• CPC Class Codes: F16H 57/0404 Lubricant filters
• CPC Class Codes: F16H 57/0424 Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes means for guiding lubricant into an axial channel of a shaft F16H57/0426
• CPC Class Codes: F16H 57/0443 for supply of lubricant during tilt or high acceleration, e.g. problems related to the tilt or extreme acceleration of the transmission casing and the supply of lubricant under these conditions
• CPC Class Codes: F16H 57/0445 for supply of different gearbox casings or sections
• CPC Class Codes: F16H 57/0476 Electric machines and gearing, i.e. joint lubrication or cooling or heating thereof
• CPC Class Codes: F16H 57/0484 with variable gear ratio or for reversing rotary motion
• CPC Class Codes: Y02T 10/62 Hybrid vehicles

Abstract

An oil lubricating structure includes a main body case having a housing chamber in which an element requiring a supply of oil is housed, an oil reservoir which is provided below the main body case and has an oil chamber in which oil collects, an oil supply portion which has an inlet port through which oil is drawn in from the oil chamber and which supplies oil collected in the oil chamber to the element requiring a supply of oil through the inlet port, and a duct member provided in the oil chamber. An oil return hole is provided which is formed in a bottom surface of the main body case toward the front of the oil reservoir and through which oil returns to the oil reservoir from the main body case. One end portion of the duct member is connected to the oil return hole and the other end portion of the duct member is positioned farther to the rear than the inlet port.

Claims

1. An oil lubricating structure comprising:

a main body case that has a housing chamber in which an element requiring a supply of oil is housed;

an oil reservoir which is provided below the main body case and has an oil chamber in which oil collects;

an oil supply portion which has an inlet port through which oil is drawn in from the oil chamber, and which supplies oil collected in the oil chamber to the element requiring a supply of oil through the inlet port; and

a duct member provided in the oil chamber,

wherein an oil return hole is provided which is formed in a bottom surface of the main body case toward the front of the oil reservoir and through which oil returns to the oil reservoir from the main body case, and

wherein one end portion of the duct member is connected to the oil return hole and the other end portion of the duct member is positioned farther to the rear than the inlet port.

2. The oil lubricating structure according to claim 1, wherein the oil supply portion has a strainer, and the inlet port is provided in the strainer.

3. The oil lubricating structure according to claim 2, wherein the inlet port is positioned toward the rear of the strainer.

4. The oil lubricating structure according to claim 2, wherein the duct member has a one-way valve which allows oil to move from the housing chamber into the oil chamber but prevents oil from moving from the oil chamber into the housing chamber.

5. The oil lubricating structure according to claim 2, wherein the oil reservoir has a magnetic member provided near the other end portion of the duct member.

6. The oil lubricating structure according to claim 5, wherein the magnetic member is provided detachable with respect to the oil reservoir.

7. The oil lubricating structure according to claim 1, wherein the other end portion of the duct member has a curved portion that is curved toward the front.

8. The oil lubricating structure according to claim 7, wherein the duct member has a one-way valve which allows oil to move from the housing chamber into the oil chamber but prevents oil from moving from the oil chamber into the housing chamber.

9. The oil lubricating structure according to claim 7, wherein the oil reservoir has a magnetic member provided near the other end portion of the duct member.

10. The oil lubricating structure according to claim 9, wherein the magnetic member is provided detachable with respect to the oil reservoir.

11. The oil lubricating structure according to claim 1, wherein the duct member has a one-way valve which allows oil to move from the housing chamber into the oil chamber but prevents oil from moving from the oil chamber into the housing chamber.

12. The oil lubricating structure according to claim 1, wherein the oil reservoir has a magnetic member provided near the other end portion of the duct member.

13. The oil lubricating structure according to claim 12, wherein the magnetic member is provided detachable with respect to the oil reservoir.