Combustion air cleaner scavenge system
AssigneeClark Equipment Company
InventorBrandon J. Kisse
Life of this patent
Estimating the term…
Abstract
A work vehicle, such as a compact loader, has a cooling system including a cooling fan generating air flow to cool engine components. The fan is shown as an axial flow fan having an inlet throat in a shroud surrounding the fan. The inlet throat is under a negative or low pressure, and a duct or conduit is connected to the inlet throat and to a precleaner of an air filter assembly providing combustion air to the engine. The negative pressure in the inlet throat causes air to flow from the precleaner to the inlet throat.
Claims14
A work vehicle comprising an internal combustion engine:
- an air filter for engine combustion air;
- a precleaner for air entering the air filter to remove particles from the combustion air, the precleaner having a housing with a fitting for connection to a low pressure air source;
- a cooling system for the internal combustion engine including a fan in a shroud having an inlet comprising an intake passage for incoming air and an exhaust for exhausting air;
- and
- a conduit coupled to the intake passage and connected to the precleaner for fluid communication to draw air from the precleaner into the intake passage.
In a work vehicle having an internal combustion engine, a cooling system comprising a fan for providing cooling air across components for cooling the internal combustion engine, and an air filter for filtering incoming combustion air for the internal combustion engine, said air filter including a precleaner stage, the improvement comprising a shroud for said fan having a low pressure side and a high pressure side, and a conduit coupled between the low pressure side of the shroud and the precleaner to draw a portion of the air flowing through the precleaner into the low pressure side of the shroud.
Dependencies are inferred from the claim text.