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Breather assembly for an internal combustion engine — Harley-Davidson patent US7461643B2 (2008)

PatentUS7461643B2
TypeUtility patent
Filed2006-10-06
Granted2008-12-09
InventorDouglas D. Reichardt
SystemEngine

“A rocker box assembly for a motorcycle engine having a cylinder head. The rocker box assembly includes a base, a cover, and a breather assembly. The base is configured to be coupled to the cylinder head. The cover is coupled to the base and cooperates with the base to at least partially define a…”

Full patent textDownload PDFShop engine parts

Drawings (9 sheets)

Breather assembly for an internal combustion engine — sheet 1Breather assembly for an internal combustion engine — sheet 2Breather assembly for an internal combustion engine — sheet 3Breather assembly for an internal combustion engine — sheet 4Breather assembly for an internal combustion engine — sheet 5Breather assembly for an internal combustion engine — sheet 6Breather assembly for an internal combustion engine — sheet 7Breather assembly for an internal combustion engine — sheet 8Breather assembly for an internal combustion engine — sheet 9

Parts for this system

32-0064
Magneto to Crankcase Oil Seal Ring and Gasket Kit
$6.35
14-0555
Rear Caliper Piston O-Ring
$10.64
15-1380
Rear Master Cylinder Gasket Kit
$10.64
23-0825
Handlebar Master Cylinder Piston Cup
$10.64

Check fitment first — add your bike and we flag what fits.

More engine schematics

Engine cylinder — patent drawing
USD521025S1
Engine cylinder
2006 · Engine
Engine cylinder head — patent drawing
USD522022S1
Engine cylinder head
2006 · Engine
Crankshaft assembly with coated crank pin — patent drawing
US7418939B2
Crankshaft assembly with coated crank pin
2008 · Engine
Thermally insulating element for an engine valve assembly — patent drawing
US7559302B2
Thermally insulating element for an engine valve assembly
2009 · Engine

Drawing from the US patent record (via Google Patents). A patent shows the invention as filed, not necessarily the production part on your motorcycle — confirm fitment for your model and year. Independent aftermarket retailer, not affiliated with Harley-Davidson, Inc.