FIGS 1 and 2 show in each case the schematic representation of a device 1 for changing the timing of {HEAD ~ intake and exhaust valves} in {TAIL ~ an internal combustion engine} 
in
FIGS 1 and 2 show in each case the schematic representation of a device 1 for changing the timing of { HEAD ~ intake and exhaust valves } in { TAIL ~ an internal combustion engine }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL