Air inlet system
AssigneeJ.C. Bamford Excavators Limited
InventorsPeter Hutyan, Kevin Browne, Colin Loud, Ryan Ballard
Life of this patent
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Abstract
An air inlet system for an internal combustion engine comprising an air inlet duct which has an upstream end including an opening and a downstream end for connection to an air flow control component and further comprising a mass air flow sensor assembly, the mass air flow sensor being located closer to the downstream end than the upstream end.
Claims18
An air inlet system for an internal combustion engine comprising:
- an air inlet duct which has an upstream end including an opening and a downstream end for connection to an air flow control component;
- and
- a mass air flow sensor assembly, the mass air flow sensor assembly being located closer to the downstream end than the upstream end,
- wherein the mass air flow sensor assembly includes an air pressure sensor, wherein the air pressure sensor is a Venturi tube, and wherein the Venturi tube does not have a downstream divergent nozzle, wherein, in the direction of air flow, the Venturi tube comprises an open end for engaging with the air inlet duct, a convergent region, and a reduced diameter region, and wherein the Venturi tube is configured to sense a pressure differential upstream and downstream of the convergent region.
An air flow control component for an internal combustion engine comprising:
- a housing, wherein the housing is a unitary cast component;
- and
- a mass air flow sensor assembly mounted onto the housing proximate an upstream inlet of the air flow control component,
- wherein the mass air flow sensor assembly includes an air pressure sensor, wherein the air pressure sensor is a Venturi tube, and wherein the Venturi tube does not have a downstream divergent nozzle, wherein, in the direction of air flow, the Venturi tube comprises an open end for engaging with the air inlet duct, a convergent region and a reduced diameter region, and wherein the Venturi tube is configured to sense a pressure differential upstream and downstream of the convergent region.
An internal combustion engine comprising an air flow control component and a mass air flow sensor assembly, wherein the air flow control component and mass air flow sensor assembly are mounted on the engine wherein the mass air flow sensor assembly is mounted proximate an upstream inlet of the air flow control component, wherein the mass air flow sensor assembly includes an air pressure sensor, wherein the air pressure sensor is a Venturi tube, and wherein the Venturi tube does not have a downstream divergent nozzle, wherein, in the direction of air flow, the Venturi tube comprises an open end for engaging with the air inlet duct, a convergent region and a reduced diameter region, and wherein the Venturi tube is configured to sense a pressure differential upstream and downstream of the convergent region.
Dependencies are inferred from the claim text.