Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
190 words
An agricultural harvester cooling system for cooling an internal combustion engine including a support frame, a heat exchanger mounted on the support frame, a cooling fan for moving air through the heat exchanger, a drive for the cooling fan, and a heat exchanger air cleaner assembly characterized by a fixed screen mounted on the support frame adjacent one side of the heat exchanger, a rotatable shaft passing through the fixed screen, at least one bearing assembly supporting the rotatable shaft, an air cutoff plate secured to the rotatable shaft between the fixed screen and the heat exchanger, a suction device including a central chamber secured to the rotatable shaft, a suction pipe attached to the central chamber and extending radially outward from the rotatable shaft directly opposite the air cutoff plate with the fixed screen between the suction pipe and the air cutoff plate, a long slot in the side of the suction pipe adjacent the fixed screen, a vacuum source mounted on the support frame, a vacuum pipe connected to the vacuum source and the central chamber of the suction device and a drive connected to the rotatable shaft.
Claim 2
Dependent Claim
190 words
An agricultural harvester cooling system for cooling an internal combustion engine including a support frame, a heat exchanger mounted on the support frame, a cooling fan for moving air through the heat exchanger, a drive for the cooling fan, and a heat exchanger air cleaner assembly characterized by a fixed screen mounted on the support frame adjacent one side of the heat exchanger, a rotatable shaft passing through the fixed screen, at least one bearing assembly supporting the rotatable shaft, an air cutoff plate secured to the rotatable shaft between the fixed screen and the heat exchanger, a suction device including a central chamber secured to the rotatable shaft, a suction pipe attached to the central chamber and extending radially outward from the rotatable shaft directly opposite the air cutoff plate with the fixed screen between the suction pipe and the air cutoff plate, a long slot in the side of the suction pipe adjacent the fixed screen, a vacuum source mounted on the support frame, a vacuum pipe connected to the vacuum source and the central chamber of the suction device and a drive connected to the rotatable shaft.
Claim 3
Dependent Claim
23 words
An agricultural harvester cooling system as set forth in claim 1 characterized by the fixed screen being pivotally attached to the support frame.
Claim 4
Dependent Claim
34 words
An agricultural harvester cooling system as set forth in claim 2 characterized by the drive for the rotatable shaft and the attached air cutoff plate and the suction pipe including an automatic shaft coupler.
Claim 5
Dependent Claim
48 words
An agricultural harvester cooling system as set forth in claim 1 characterized by the fixed screen being a portion of one wall of a large box and a portion of another wall of the large box including an opening for the movement of air into the large box.
Claim 6
Dependent Claim
55 words
An agricultural harvester cooling system as set forth in claim 1 characterized by an oil cooler pivotally mounted on the support frame and positioned between the heat exchanger and the fixed screen, by a seal between the heat exchanger and the oil cooler and by a seal between the oil cooler and the fixed screen.
Claim 7
Dependent Claim
30 words
An agricultural harvester cooling system as set forth in claim 1 characterized by the vacuum source including a blower and by the vacuum pipe being connected to the blower inlet.
Claim 8
Dependent Claim
54 words
An agricultural harvester cooling system as set forth in claim 1 characterized by the fixed screen including bar members on the side adjacent the fixed screen facing the heat exchanger which hold the fixed screen flat and which cooperate with the air cutoff plate to block the flow of air through the fixed screen.