초록 ▼

In a vehicle having an internal combustion engine enclosed in an engine housing, two vertically spaced openings in the housing permit the passage of cooling air around the engine. The lower opening has a movable cover which is normally closed when the vehicle is moving. When the vehicle is stationar

In a vehicle having an internal combustion engine enclosed in an engine housing, two vertically spaced openings in the housing permit the passage of cooling air around the engine. The lower opening has a movable cover which is normally closed when the vehicle is moving. When the vehicle is stationary, however, an automatic actuating device moves the cover to an open position. The actuating device is responsive to a condition of the vehicle normally indicating that the vehicle is stationary, e.g. the temperature in the engine housing or the pressure in the engine intake manifold.

대표청구항 ▼

In combination with a vehicle having a primary cooling system for an engine, a fuel system cooling arrangement supplemental to and distinct from the primary cooling system of the engine comprising: a. means defining a first opening in said housing, at least a portion of said first opening being loca

In combination with a vehicle having a primary cooling system for an engine, a fuel system cooling arrangement supplemental to and distinct from the primary cooling system of the engine comprising: a. means defining a first opening in said housing, at least a portion of said first opening being located higher than said fuel system; b. means defining a second opening in said housing, at least a portion of said second opening being located lower than said fuel system; c. movable closure means for selectively covering said second opening; and d. an automatic actuating means coupled to said closure means and operative to open said closure means only in response to a predetermined condition of the vehicle normally indicative of a heated condition within said housing conducive to the vaporization of fuel, thereby to permit convection cooling of the fuel system with air being drawn in through said second opening and flowing out through said first opening. A method of providing cooling for a fuel system of a vehicular engine having a primary cooling system to prevent fuel vaporization, which coOling is supplemental to and distinct from the engine cooling and which fuel system is located within a housing, said method comprising the steps of: a. providing a first opening in the housing, at least a portion of said first opening being opening being located higher than the fuel system; b. providing a second opening in the housing, at least a portion of said second opening being located lower than the fuel system; c. sensing a heated condition capable of inducing vaporization of fuel in the fuel system; and d. opening said second opening in the housing only if said heated condition is present, whereby fuel vaporization will be prevented by a cooling convection flow of air induced around the fuel system.