Engine cover for a snow thrower

Excavating – Snow or ice removing or grooming by portable device – Motorized rotary excavating tool

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C123S19800E

Reexamination Certificate

active

06381881

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an engine cover for a snow thrower which is provided with an internal barrier arrangement for preventing snow contained in the engine's air intake from reaching the engine's carburetor area and for retaining engine exhaust heat used to supply the carburetor with warm air.
2. Prior Art
Engines used in snow thrower applications typically include an engine cover to protect the engine from the elements. If exposed to snow and moisture, the engine's operation can be adversely affected.
Additionally, a snow thrower normally operates in a cold environment. To improve the efficiency of the engine it is desirable to supply the engine with air warmed by the engine and its exhaust.
Covers which typically are used to protect a snow thrower engine allow ambient air to enter beneath the cover to cool the engine. Such air often contains snow which, if melted proximate the carburetor area of the engine, can cause malfunction.
SUMMARY OF THE INVENTION
The present invention provides an improved cover for a snow thrower engine which contains interior walls which define distinct spaces within the cover. A first space defined by a first wall receives cooling air for the engine, but that wall prevents snow carried in the cooling air from reaching the engine's carburetor. A second space defined by a second wall collects air heated by the exhaust muffler and supplied to the carburetor. The first and second walls are separated from one another to define a third space within the engine cover which restricts heat from the air within the second space from reaching the first wall and causing snow carried by the cooling air to turn to slush build-up thereby reducing the flow of cooling air to the engine.


REFERENCES:
patent: 4211058 (1980-07-01), Larsen
patent: 4294027 (1981-10-01), Edwards
patent: 4995356 (1991-02-01), Kronich
patent: 5421297 (1995-06-01), Tamba et al.
patent: 5787693 (1998-08-01), Dyke

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Engine cover for a snow thrower does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Engine cover for a snow thrower, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine cover for a snow thrower will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2836553

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.