U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 123/71V - Lengthwise scavenging of cylinder from head to piston


Subclass of Class 123 - Internal-combustion engines
No. of patents: 5
Last issue date: 08/14/2007


NumberTitleIssue Date
7255071Supercharged two-stroke engine with upper piston extensions
An apparatus useful in a two-stroke cycle engine or in a pump as a piston disposed within a piston cylinder. The piston cylinder has an intermediate piston cylinder head disposed transversely across the interior of the piston cylinder. The piston has at least one up...
08/14/2007
7121232Method in an internal combustion engine and an internal combustion engine
An internal combustion engine, Z-engine. The compression part and the working part are separated. New gas is transported to the upper side of the piston. Below there is a small chamber corner. When the piston comes nearer the upper hollow part, the combustion gases ...
10/17/2006
6966283Apparatus with piston having upper piston extensions
An apparatus useful in a two-stroke cycle engine or in a pump as a piston disposed within a piston cylinder. The piston cylinder has an intermediate piston cylinder head disposed transversely across the interior of the piston cylinder. The piston has a lower portion...
11/22/2005
4424772Internal combustion engine valve actuating cam
A two stroke internal combustion engine with piston and cylinder has a crankshaft having peripheral gears and a cam both affixed to the same crankshaft throw. A trough is in the engine crankcase whereby the gears pass through lubrication....
01/10/1984
4115037Opposed piston internal combustion engine-driven pump
An engine driven reciprocating air compressor. The engine is operated in a through scavenge two-stroke mode. The engine has opposed pistons reciprocating in opposition in a cylinder, the pistons being rigidly connected to respective compressor pistons wor...
09/19/1978
 
Sign InRegister
Username  
Password   
forgot password?