Motorcycle
First Claim
Patent Images
1. A four-stroke engine comprising:
- a) only a single cylinder having a predetermined radius, centerline, a first end and a second end and an internal volume of between 250 cc and 700 cc;
b) a piston received within the cylinder having substantially the same radius and being able to substantially transverse within the cylinder from the first end to the second end; and
c) a cylinder head coupled to the cylinder at the first end to form a substantially closed volume with the piston, the cylinder head having at least one inlet with a corresponding inlet valve for introducing air and at least one fuel injector for injecting fuel into the closed volume and at least one outlet with a corresponding outlet valve for expelling exhaust products from the closed volume;
wherein the inlet is formed on a front side of the engine and the outlet is formed on a back side of the engine.
8 Assignments
0 Petitions
Accused Products
Abstract
The present invention is directed towards a motorcycle or off-road use with an improved engine, air inlet, exhaust and engine control management. The engine is an improved four-stroke engine with a monocoque cylinder and crank case. The air inlet has been moved to the head tube of the motorcycle frame. The engine is reverse flow with the exhaust coming out the rear side and being shortened to less than about 50 inches. The engine control management has been modified to include an ignition interrupt, gear based ignition timing and after market tuning capabilities.
104 Citations
10 Claims
-
1. A four-stroke engine comprising:
-
a) only a single cylinder having a predetermined radius, centerline, a first end and a second end and an internal volume of between 250 cc and 700 cc; b) a piston received within the cylinder having substantially the same radius and being able to substantially transverse within the cylinder from the first end to the second end; and c) a cylinder head coupled to the cylinder at the first end to form a substantially closed volume with the piston, the cylinder head having at least one inlet with a corresponding inlet valve for introducing air and at least one fuel injector for injecting fuel into the closed volume and at least one outlet with a corresponding outlet valve for expelling exhaust products from the closed volume; wherein the inlet is formed on a front side of the engine and the outlet is formed on a back side of the engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A four-stroke engine comprising:
-
d) only a single cylinder having a predetermined radius, centerline, a first end and a second end and an internal volume of between 250 cc and 700 cc; e) a piston received within the cylinder having substantially the same radius and being able to substantially transverse within the cylinder from the first end to the second end; f) a cylinder head coupled to the cylinder at the first end to form a substantially closed volume with the piston, the cylinder head having at least one inlet with a corresponding inlet valve for introducing air and fuel into the closed volume and at least one outlet with a corresponding outlet valve for expelling exhaust products from the closed volume; and an exhaust pipe coupled to the outlet of the engine and extending in a substantially rearward and upward direction therefrom for the entire length of the exhaust pipe, and the entire length being less than about 45 inches; wherein the inlet is formed on a front side of the engine and the outlet is formed on a back side of the engine.
-
Specification