Spark ignition engine
AssigneeBritish Leyland UK Limited
InventorKenneth Longstaff
Life of this patent
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Abstract
A spark ignition engine has a crankshaft speed pulse generator and a plurality of cylinders each cylinder containing a spark plug. Each plug is connectable to a high voltage ignition winding by way of a reed relay. The relays are divided into two groups and, with a periodicity dependent on generator output, a selected relay in each group is closed immediately prior to generation of voltage in the winding and opened when the voltage has been dissipated. Although both plugs connected to the selected relays produce a spark only one of the cylinders contains fuel mixture and, consequently, one one power stroke occurs.
Claims4
A spark ignition engine, having a crankshaft to which is coupled a plurality of reciprocatable pistons, incorporating an ignition system comprising:
- a. a crankshaft pulse generator adapted to generate output pulses in dependence on crankshaft speed;
- b. an ignition coil having a high voltage secondary winding;
- c. a first group of at least two reed relays and a second group of at least two reed relays;
- each relay of the first group connecting one end
Dependencies are inferred from the claim text.