US 12,331,825 B2
Breathing mechanical power transmission and a pedally propelled vehicle with such power transmission
Knut Tore Ljøsne, Oslo (NO)
Assigned to MONT INVEST 30 AS, Oslo (NO)
Appl. No. 17/781,818
Filed by MONT INVEST 30 AS, Oslo (NO)
PCT Filed Dec. 3, 2020, PCT No. PCT/NO2020/050299
§ 371(c)(1), (2) Date Jun. 2, 2022,
PCT Pub. No. WO2021/112688, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 20191440 (NO), filed on Dec. 5, 2019.
Prior Publication US 2024/0376975 A1, Nov. 14, 2024
Int. Cl. F16H 57/027 (2012.01); F16H 57/029 (2012.01); F16H 57/04 (2010.01); B62M 6/55 (2010.01); B62M 11/14 (2006.01)
CPC F16H 57/027 (2013.01) [F16H 57/029 (2013.01); F16H 57/0424 (2013.01); F16H 57/0452 (2013.01); F16H 57/0484 (2013.01); B62M 6/55 (2013.01); B62M 11/14 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A breathing mechanical power transmission comprising:
a housing;
a first seal;
a first axle extending through the first seal and a wall of the housing, wherein the first axle is configured to rotate relative to the housing; and
a breather passage configured to release a difference in pressure between an inside and an outside of the housing in any position of the mechanical power transmission,
wherein the housing is configured to be partly filled with a liquid lubricant, wherein the breather passage has a first end and a second end, wherein the first end is external to the housing and the second end is internal to the housing, and wherein the second end is configured to stay above the liquid lubricant in any position of the mechanical power transmission, and
wherein the housing comprises first and second chambers, wherein the breather passage comprises a second fluid connection comprising the second end and an upper end, opposite the second end, and wherein the second end is arranged in the first chamber and the upper end is arranged in the second chamber.