EVEN FIRE 90A°V12 IC ENGINES, FUELING AND FIRING SEQUENCE CONTROLLERS, AND METHODS OF OPERATION BY PS/P TECHNOLOGY AND IFR COMPENSATION BY FUEL FEED CONTROL
First Claim
1. An improved V12 reciprocating internal combustion engine having an Electronic Fuel Injection (EFI) system, a Distributorless Ignition System (DIS) and a Powertrain Control Module (PCM) having fuel injector pulse and ignition maps to control fuel and fire the cylinders of said engine by said EFI and DIS systems, comprising in operative combination:
- a. twelve cylinders disposed as a pair of multi-cylinder, cylinder banks in an engine block of 90°
V12 geometry, each bank having six cylinders and terminating at the upper ends of said cylinders in a head, said block and said heads having a first and a second end;
b. each said cylinder contains a movable piston connected to a common crankshaft via a connecting rod, said crankshaft is mounted in said V12 engine block to rotate in seven bearings, at least one bearing being disposed adjacent each end of said block, and five bearings being distributed intermediate said end bearings and between connections of said connection rods to said crankshaft;
c. said PCM containing a microprocessor and a database structure comprising injector fueling maps and firing maps; and
d. said PCM controlling said engine for Progressive Single/Pair fueling and firing, so that in 720°
of rotation of said crankshaft, all 12 cylinders are fueled and fired, said PCM controlling said firing with respect to the location of pistons in said cylinders to result in an even fired 90°
V12 internal combustion engine having more torque and power output than an odd fired 90°
V12 internal combustion engine of the same displacement.
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Accused Products
Abstract
90° V12 reciprocating, EFI/DIS fueled/fired, IC engines having a PCM controller operating the engine in an Even Fire ignition mode, in a novel fueling and firing sequence called Progressive Single/Pair (PS/P) firing, wherein the cylinders of each of a set of four pairs of internal cylinders are simultaneously fueled and fired in parallel to produce a pump-gas fueled power curve greatly improved over V6 and V8 engines. The inherent imbalance-induced transitory vibration in IFR RPM is compensated-for by fuel feed control, namely, leaning one cylinder of each pair-fired cylinder pair. The inventive 90° V12 retro-fits into the engine compartment of conventional vehicles and can use any liquid or gaseous fuel. The inventive 90° V12 has use in the exemplary fields of: automotive engines; heavy military and industrial equipment and vehicle engines; marine engines; aircraft engines; and stationary power sources; in both 2-cycle and 4-cycle modes, and in normally aspirated, super-charged and turbo-charged configurations.
45 Citations
20 Claims
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1. An improved V12 reciprocating internal combustion engine having an Electronic Fuel Injection (EFI) system, a Distributorless Ignition System (DIS) and a Powertrain Control Module (PCM) having fuel injector pulse and ignition maps to control fuel and fire the cylinders of said engine by said EFI and DIS systems, comprising in operative combination:
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a. twelve cylinders disposed as a pair of multi-cylinder, cylinder banks in an engine block of 90°
V12 geometry, each bank having six cylinders and terminating at the upper ends of said cylinders in a head, said block and said heads having a first and a second end;b. each said cylinder contains a movable piston connected to a common crankshaft via a connecting rod, said crankshaft is mounted in said V12 engine block to rotate in seven bearings, at least one bearing being disposed adjacent each end of said block, and five bearings being distributed intermediate said end bearings and between connections of said connection rods to said crankshaft; c. said PCM containing a microprocessor and a database structure comprising injector fueling maps and firing maps; and d. said PCM controlling said engine for Progressive Single/Pair fueling and firing, so that in 720°
of rotation of said crankshaft, all 12 cylinders are fueled and fired, said PCM controlling said firing with respect to the location of pistons in said cylinders to result in an even fired 90°
V12 internal combustion engine having more torque and power output than an odd fired 90°
V12 internal combustion engine of the same displacement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. Engine control module fueling and firing maps for a 90°
- V12 reciprocating internal combustion engine having an Electronic Fuel Injection (EFI) system and a Distributorless Ignition System (DIS), comprising a data structure disposed in a microprocessor memory of a Powertrain Control Module of said engine, said data structure providing data outputs to said PCM for controlling said engine to operate in a mode of Progressive Single/Pair fueling by said EFI system and firing by said DIS system, so that in 720°
of rotation of said crankshaft, all 12 cylinders of said engine are fueled, and for controlling firing of said cylinders in at least one series of progressive single and pair firings, said firings occurring with respect to the location of pistons in cylinders of said engine to result in an even fired 90°
V12 internal combustion engine having more torque and power output than an odd fired 90°
V12 internal combustion engine of the same displacement. - View Dependent Claims (10, 11, 12)
- V12 reciprocating internal combustion engine having an Electronic Fuel Injection (EFI) system and a Distributorless Ignition System (DIS), comprising a data structure disposed in a microprocessor memory of a Powertrain Control Module of said engine, said data structure providing data outputs to said PCM for controlling said engine to operate in a mode of Progressive Single/Pair fueling by said EFI system and firing by said DIS system, so that in 720°
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13. Method of operation of a V12 reciprocating internal combustion engine having an Electronic Fuel Injection (EFI) system, a Distributorless Ignition System (DIS) and a Powertrain Control Module (PCM) having fuel injector pulse and ignition map data structures for fueling and firing of the cylinders of said engine by said EFI and DIS systems, comprising the steps of:
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a. selectively controlling the triggering of pulse duration of individual cylinder fuel injectors of said engine EFI system so that four individual cylinders of said twelve cylinders are sequentially fueled, the remaining eight cylinders are grouped into a set of four cylinder pairs, and each of said pairs of cylinders are simultaneously fueled, said four pairs in said set being sequentially fueled, so that in 720°
of rotation of said crankshaft, all 12 cylinders are fueled;b. selectively controlling the triggering of firing of individual cylinders by said DIS system so that said four sequentially fueled individual cylinders are sequentially fired, and each pair of said set of four pairs of simultaneously fueled cylinders are simultaneously fired in sequence so that in 720°
of rotation of said crankshaft, all 12 cylinders are fired; andc. controlling said cylinder firing with respect to the location of pistons in said cylinders to result in an even fired, progressive single/pair fueled and fired 90°
V12 internal combustion engine having more torque and power output than an odd fired 90°
V12 internal combustion engine of the same displacement. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification