Riding lawn mower having a liquid-cooled engine
First Claim
Patent Images
1. A lawn mower, comprising:
- a frame means having rearward and forward ends and opposite sides;
drive wheels rotatably mounted on said frame means for driving the lawn mower;
a mower deck supported by said frame means at the forward end thereof;
at least one cutting blade rotatably disposed within said mower deck;
a liquid-cooled engine mounted on said frame means for driving said drive wheels and said cutting blade;
a radiator operatively connected to said liquid-cooled engine for cooling the liquid in said engine;
said radiator being disposed above said engine;
a radiator grille positioned above said radiator for allowing the flow of cooling air downwardly therethrough towards said radiator;
said radiator grille including a perforated screen member having perforations formed therein for allowing the flow of cooling air therethrough and restricting the passage of chaff therethrough;
said perforated screen member being corrugated and including a series of rearwardly extending, alternating, elongated grooves and ridges;
said grooves and ridges having forward and rearward ends;
said perforated screen member being inclined with respect to horizontal from one of said forward and rearward ends to the other of said forward and rearward ends to define a lower end of said grooves and ridges;
said perforated screen member being adapted to direct accumulated chaff in said grooves and on said ridges toward said lower end.
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Accused Products
Abstract
A lawn mower including a liquid-cooled engine having a radiator grille positioned over the radiator thereof. The radiator grille includes a perforated screen member having a series of alternating grooves and ridges formed therein which run downwardly and rearwardly from the forward end of the screen member. The design of the screen member and the radiator grille permit the perforated screen member to self-clean and also provides a convenient means by which the screen member may be manually cleaned, if necessary.
36 Citations
12 Claims
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1. A lawn mower, comprising:
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a frame means having rearward and forward ends and opposite sides; drive wheels rotatably mounted on said frame means for driving the lawn mower; a mower deck supported by said frame means at the forward end thereof; at least one cutting blade rotatably disposed within said mower deck; a liquid-cooled engine mounted on said frame means for driving said drive wheels and said cutting blade; a radiator operatively connected to said liquid-cooled engine for cooling the liquid in said engine; said radiator being disposed above said engine; a radiator grille positioned above said radiator for allowing the flow of cooling air downwardly therethrough towards said radiator; said radiator grille including a perforated screen member having perforations formed therein for allowing the flow of cooling air therethrough and restricting the passage of chaff therethrough; said perforated screen member being corrugated and including a series of rearwardly extending, alternating, elongated grooves and ridges; said grooves and ridges having forward and rearward ends; said perforated screen member being inclined with respect to horizontal from one of said forward and rearward ends to the other of said forward and rearward ends to define a lower end of said grooves and ridges;
said perforated screen member being adapted to direct accumulated chaff in said grooves and on said ridges toward said lower end. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A lawn mower, comprising:
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a frame means having rearward and forward ends and opposite sides; drive wheels rotatably mounted on said frame means for driving the lawn mower; a mower deck supported by said frame means at the forward end thereof; at least one cutting blade rotatably disposed within said mower deck; a liquid-cooled engine mounted on said frame means for driving said wheels and said cutting blade; a radiator operatively connected to said liquid-cooled engine for cooling the liquid in said engine; said radiator being disposed above said engine; a radiator grille positioned above said radiator for allowing the flow of cooling air downwardly therethrough towards said radiator; said radiator grille including a perforated screen member having perforations formed therein; said perforated screen member being corrugated and including a series of rearwardly extending, alternating, elongated grooves and ridges; said opening defining a bottom edge, a top edge, and opposite side edges; said radiator grille having a corrugated portion at said bottom edge including a series of alternating grooves and ridges which register with said grooves and ridges in said screen member. - View Dependent Claims (9, 10, 11, 12)
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Specification