Oil supplying device

• US 7,195,103 B2
• Filed: 04/16/2002
• Issued: 03/27/2007
• Est. Priority Date: 04/21/2001
• Status: Expired due to Fees

• Current Assignee: ZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: ZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Cizmarik, Jens, Blechschmidt, Dirk, Bathe, Kurt
• Primary Examiner(s): FENSTERMACHER, DAVID MORGAN
• Application Number:
  US10/474,598
• Publication Number:
  US 20040108168A1
• Time in Patent Office: 1,806 Days
• Field of Search: 184/13.1, 184/11.4, 184/65, 744/733.6, 384/375, 384/392
• US Class Current: 184/13.1
• CPC Class Codes: F16H 2063/325 Rocker or swiveling forks, i.e. the forks are pivoted in the gear case when moving the sleeve
• CPC Class Codes: F16H 57/042 Guidance of lubricant
• CPC Class Codes: F16H 57/0423 Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes means for guiding lubricant into an axial channel of a shaft F16H57/0426; lubrication by injection, injection nozzles or tubes therefore F16H57/0456
• CPC Class Codes: F16H 57/0468 Shift rods or shift forks
• CPC Class Codes: F16H 57/0494 with variable gear ratio or for reversing rotary motion
• CPC Class Codes: F16H 63/206 the final output mechanisms being mounted coaxially on a single shaft, e.g. mono rail shift mechanism
• CPC Class Codes: F16H 63/32 Gear shift yokes, e.g. shift forks
• CPC Class Codes: Y10T 74/20177 Particular element [e.g., shift fork, template, etc.]
• CPC Class Codes: Y10T 74/20183 Shift fork structure

Abstract

An oil supplying device (34, 36, 38) for a vehicle transmission (2) having one transmission housing (4, 6) with gears (10, 12, 16, 18, 22) situated upon shafts (8, 14, 20) and having teeth, bearings in which gears (10, 12, 16, 18, 22) and shafts (8, 14, 20) are rotatably mounted and one switch gear (30, 32, 50) suited to connect the gears (10, 12, 16, 18, 22) and shafts (8, 14, 20) for a transmission of torque. The device has an oil collecting duct (34) arranged on movable elements (32, 50) of the switch gear (30, 32, 50) which moves with the elements (32, 50) of the switch gear (30, 32, 50) and which extends substantially through the part in the transmission housing (4, 6) having all the gears (10, 12, 16, 18, 22). The oil collecting duct (34) has at least one opening (36, 38) which during movements of the elements (32, 50) of the switch gear (30, 32, 50) coats areas within the transmission housing (4, 6) on which the bearings and teeth are situated.

Claims

1. An oil supplying device (34, 36, 38) for a vehicle, the oil supply device being accommodated within a transmission (2) having a housing (4, 6) with a plurality of gears (10, 12, 16, 18, 22) disposed therein upon shafts (8, 14, 20), and a switch gear (30, 32, 50) suited to connect said gears (10, 12, 16, 18, 22) and the shafts (8, 14, 20) for a torque transmission,

wherein the transmission (2) has a separating device (24) which separates a first housing part (6) from a second housing part (4) and an oil collecting duct (34) is situated upon movable elements (32, 50) of said switch gear (30, 32, 50) and moves with said elements (32, 50) of said switch gear (30, 32, 50), and the oil collecting duct (34) extends from adjacent a first end of the transmission housing (4, 6) over the plurality of gears (10, 12, 16, 18, 22) to adjacent an opposed second end of the transmission housing and has at least one opening (36, 38) therein, and the oil collecting duct (34), during operation of the transmission (2), collects oil from the first housing part (6) and conveys the collected oil over the separating device (24) and deposits the oil in the second housing part (4).

2. The oil supplying device (34, 36, 38) according to claim 1, wherein said separating device (24) separates a first area (42) located in the first housing part (6), with a low oil level (48), from a second area (44) located in the second housing part (4), with a high oil level (46), and said oil collecting duct (34) conveys oil sprayed from said first area (42) to said second area (44).

3. The oil supplying device (34, 36, 38) according to claim 2, wherein at least one of said openings (36, 38) of said oil collecting duct (34) is arranged in a manner such that, at least in a defined position of movement, the opening can deliver oil to a second oil collecting duct (82) which is fastened to one of said transmission housing (4, 6) and a switching element.

4. The oil supplying device (34, 36, 38) according to claim 1, wherein said oil collecting duct (34) has a slope so that, the oil normally flows, assisted by gravity, along said oil collecting duct (34) into the second area (44).

5. The oil supplying device (34, 36, 38) according to claim 1, wherein said oil collecting duct (34) moves in a longitudinal direction of said transmission housing (4, 6) along axes of rotation of said shafts (8, 14, 20).

6. The oil supplying device (34, 36, 38) according to claim 5, wherein said oil collecting duct (34) is mounted upon a selector shaft (50) movable in a longitudinal direction of said transmission housing (4, 6).

7. The oil supplying device (34, 36, 38) according to claim 1, wherein said oil collecting duct (34) moves at right angles to a longitudinal direction of said transmission housing (4, 6) and thus at right angles with axes of rotation of said shafts (8, 14, 20).

8. The oil supplying device (34, 36, 38) according to claim 7, wherein said oil collecting duct (34) is mounted upon a locking plate (32) which is provided for locking shaft forks of said switch gear (30, 32, 50) not selected for shifting and is movable at right angles with the longitudinal direction of said transmission housing (4, 6).

9. The oil supplying device (34, 36, 38) according to claim 1, wherein said oil collecting duct (34) is made of a resistant plastic material.

10. An oil supplying device (34, 36, 38) for a vehicle, the oil supply device being accommodated within a transmission (2) having a housing (4, 6) with having a plurality of gears (10, 12, 16, 18, 22) disposed therein upon shafts (8, 14, 20), and a switch gear (30, 32, 50) is associated with the plurality of gears (10, 12, 16, 18, 22) and the shafts (8, 14, 20) to facilitate torque transmission by the transmission (2);

wherein the transmission (2) has a separating device (24) which separates an oil collection reservoir (42) of a first housing part (6) from an oil collection reservoir (44) of a second housing part (4), and the second housing part (4) of the transmission (2) has a raised bottom;

an oil collecting duct (34) is supported upon movable elements (32, 50) of the switch gear (30, 32, 50) and the oil collecting duct (34) moves with the movable elements (32, 50) of the switch gear (30, 32, 50), the oil collecting duct (34) extends over the separating device (24) and has a first end which communicates with the first housing part (6) and a second end which communicates with the second housing part (4), and the oil collecting duct (34) is inclined, from the first housing part (6) toward the second housing part (4), so that oil, collected by the oil collecting duct (34) during operation of the transmission (2), flows along the oil collecting duct (34) toward the second housing part (4) to convey the collected oil into the oil collection reservoir (44) of the second housing part (4).

11. An oil supplying device (34, 36, 38) for a vehicle, the oil supply device being accommodated within a transmission (2) having a housing (4, 6) with having a plurality of gears (10, 12, 16, 18, 22) disposed therein upon shafts (8, 14, 20), and a switch gear (30, 32, 50) is associated with the plurality of gears (10, 12, 16, 18, 22) and the shafts (8, 14, 20) to facilitate torque transmission by the transmission (2);

wherein the transmission (2) has a separating device (24) which separates an oil collection reservoir (42) of a first housing part (6) from an oil collection reservoir (44) of a second housing part (4), and the second housing part (4) of the transmission (2) has a raised bottom;

an oil collecting duct (34) is supported upon movable elements (32, 50) of the switch gear (30, 32, 50) and the oil collecting duct (34) moves with the movable elements (32, 50) of the switch gear (30, 32, 50), the oil collecting duct (34) extends over substantially all of the plurality of gears (10, 12, 16, 18, 22) and the separating device (24) and has a first end which communicates with the first housing part (6) and a second end which communicates with the second housing part (4), and the oil collecting duct (34) is inclined, from the first housing part (6) toward the second housing part (4), and has an intermediate opening (38) therein and, during operation of the transmission (2), a portion of the oil, collected by the oil collecting duct (34), coats an intermediated region of the transmission with oil while a remaining portion of the collected oil flows along the oil collecting duct (34) toward the second housing part (4) and collects in the oil collection reservoir (44) of the second housing part (4).