Back to results
US 6,626,140 B2Granted
Four stroke engine having power take off assembly
AssigneeBombardier-Rotax GmbH
InventorsManfred Aichinger, Rudolf Tscherne, Alois Wolfsgruber, Michael Sonnleitner, Johann Holzleitner
Life of this patent
Estimating the term…
Abstract
A four stroke internal combustion engine is disclosed having a power take off housing located at one end of the engine. A crankshaft is operatively connected to a drive shaft and the cam shaft within the power take off housing. Furthermore, the crankshaft is operatively coupled within the power take off housing to at least one of a generator, an engine starting mechanism, a balance shaft, and a supercharger.
Claims87
A four stroke internal combustion engine, comprising:
- a crankcase having a crankshaft rotatably mounted therein, wherein the crankshaft extends from one end of the crankcase;
- a driveshaft operatively connected to the crankshaft;
- a cylinder head connected to the crankcase, wherein the crankcase and the cylinder head form at least one combustion cylinder chamber;
- at least one intake valve for the at least one combustion cylinder chamber;
- at least one exhaust valve for the of the at least one combustion cylinder chamber;
- a valve actuation assembly located in the cylinder head for operating the at least one intake valve and the at least one exhaust valve;
- a cam shaft located in the cylinder head and operatively connected to the valve actuation assembly;
- and
- a power take off housing located on the one end of the crankcase,
- wherein the crankshaft is operatively connected to the cam shaft, and
- wherein the crankshaft is operatively coupled within the power take off housing to at least one of the drive shaft, a generator, an engine starting mechanism, a balance shaft, and a supercharger.
8 more elements
The four stroke internal combustion engine according 2, wherein the generator is operatively coupled the rotating member.
A personal watercraft for use by at least one passenger, comprising:
- a hull;
- a seating assembly for the at least one passenger;
- and
- a four stroke internal combustion engine located within the hull, wherein the engine comprises
- a crankcase secured to the hull, wherein the crankcase having a crankshaft rotatably mounted therein;
- a drive shaft operatively connected to the crankshaft;
- a cylinder head connected to the crankcase, wherein the crankcase and the cylinder head form at least one combustion cylinder chamber;
- at least one intake valve for the at least one combustion cylinder chamber;
- at least one exhaust valve for the of the at least one combustion cylinder chamber;
- a valve actuation assembly located in the cylinder head for operating the at least one intake valve and the at least one exhaust valve;
- a cam shaft located in the cylinder head and operatively connected to the valve actuation assembly;
- and
- a power take off housing located on the one end of the crankcase,
- wherein the crankshaft is operatively connected to the cam shaft, and
- wherein the crankshaft is operatively coupled within the power take off housing to at least one of the drive shaft, a generator, an engine starting mechanism, a balance shaft, and a supercharger.
12 more elements
The personal watercraft according 48, wherein the generator is operatively coupled the rotating member.
A four stroke internal combustion engine, comprising:
- a crankcase having a crankshaft rotatably mounted therein, wherein the crankshaft extends from one end of the crankcase;
- a driveshaft operatively connected to the crankshaft;
- a cylinder head connected to the crankcase, wherein the crankcase and the cylinder head form at least one combustion cylinder chamber;
- at least one intake valve for the at least one combustion cylinder chamber;
- at least one exhaust valve for the of the at least one combustion cylinder chamber;
- a valve actuation assembly located in the cylinder head for operating the at least one intake valve and the at least one exhaust valve;
- a cam shaft located in the cylinder head and operatively connected to the valve actuation assembly;
- and
- a power take off housing located on the one end of the crankcase,
- wherein the crankshaft is operatively connected to the cam shaft, and
- wherein the crankshaft is operatively coupled within the power take off housing to the drive shaft, a generator, an engine starting mechanism, and a balance shaft.
8 more elements
A personal watercraft for use by at least one passenger, comprising:
- a hull;
- a seating assembly for the at least one passenger;
- and
- a four stroke internal combustion engine located within the hull, wherein the engine comprises
- a crankcase secured to the hull, wherein the crankcase having a crankshaft rotatably mounted therein;
- a drive shaft operatively connected to the crankshaft;
- a cylinder head connected to the crankcase, wherein the crankcase and the cylinder head form at least one combustion cylinder chamber;
- at least one intake valve for the at least one combustion cylinder chamber;
- at least one exhaust valve for the of the at least one combustion cylinder chamber;
- a valve actuation assembly located in the cylinder head for operating the at least one intake valve and the at least one exhaust valve;
- a cam shaft located in the cylinder head and operatively connected to the valve actuation assembly;
- and
- a power take off housing located on the one end of the crankcase,
- wherein the crankshaft is operatively connected to the cam shaft, and
- wherein the crankshaft is operatively coupled within the power take off housing to the drive shaft.
12 more elements
A personal watercraft for use by at least one passenger, comprising:
- a hull;
- a seating assembly for the at least one passenger;
- and
- a four stroke internal combustion engine located within the hull, wherein the engine comprises
- a crankcase secured to the hull, wherein the crankcase having a crankshaft rotatably mounted therein;
- a drive shaft operatively connected to the crankshaft;
- a cylinder head connected to the crankcase, wherein the crankcase and the cylinder head form at least one combustion cylinder chamber;
- at least one intake valve for the at least one combustion cylinder chamber;
- at least one exhaust valve for the of the at least one combustion cylinder chamber;
- a valve actuation assembly located in the cylinder head for operating the at least one intake valve and the at least one exhaust valve;
- a cam shaft located in the cylinder head and operatively connected to the valve actuation assembly;
- a power take off housing located on the one end of the crankcase;
- and
- a supercharger,
- wherein the crankshaft is operatively connected to the cam shaft, and wherein the crankshaft is operatively coupled within the power take off housing to the supercharger.
12 more elements
Dependencies are inferred from the claim text.