US 11,754,147 B2
Compact gearbox and e-reverse
John Henry Sutton, Woking (GB); and Michael Kerr, Thatcham (GB)
Assigned to McLaren Automotive Limited, Woking (GB)
Filed by McLaren Automotive Limited, Woking (GB)
Filed on May 24, 2022, as Appl. No. 17/751,791.
Application 17/751,791 is a continuation of application No. 16/091,942, granted, now 11,371,587, previously published as PCT/GB2017/050989, filed on Apr. 10, 2017.
Claims priority of application No. 20 2016 101 867.6 (DE), filed on Apr. 8, 2016.
Prior Publication US 2022/0282772 A1, Sep. 8, 2022
Int. Cl. F16H 3/00 (2006.01); B60K 6/387 (2007.10); B60K 6/48 (2007.10); B60K 6/547 (2007.10); B60K 6/54 (2007.10); F16H 3/093 (2006.01); F16H 57/02 (2012.01)
CPC F16H 3/006 (2013.01) [B60K 6/387 (2013.01); B60K 6/48 (2013.01); B60K 6/547 (2013.01); B60K 2006/4825 (2013.01); B60K 2006/541 (2013.01); B60Y 2400/428 (2013.01); F16H 2003/008 (2013.01); F16H 2003/0931 (2013.01); F16H 2057/02043 (2013.01); F16H 2057/02086 (2013.01); F16H 2200/006 (2013.01); F16H 2200/0021 (2013.01); Y02T 10/62 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gearbox comprising:
an outer intermediate shaft carrying a first set of shaft gears;
an inner intermediate shaft carrying a second set of shaft gears, the inner intermediate shaft running concentrically within the outer intermediate shaft; and
a first lay shaft carrying a first set of drive gears and an output gear positioned along the first lay shaft between two of the first set of drive gears, a second lay shaft carrying a second set of drive gears and an output gear positioned along the second lay shaft between two of the second set of drive gears, each drive gear being coupled to a respective shaft gear to together provide a plurality of gear ratios between the intermediate shafts and an output shaft; wherein:
each lay shaft is coupled to the output shaft by the respective output gear; and
the output shaft is for connection to a differential, and a crown wheel of the differential is positioned so that it cuts through a plane positioned on two of the drive gears at the end of the first and second layshafts closest to where the input shaft is removably coupled to the inner and outer intermediate shafts.