Abstract: A dual fan module system 28 includes a two-speed electric motor 12 for operating a first fan 36, a one-speed electric motor 14 for operating a second fan 38, and switching structure K1, K2, K3, and K4 constructed and arranged to operate the system at more than two different speeds.

Abstract: A dual fan module system 28 includes a two-speed electric motor 12 for operating a first fan 36, a one-speed electric motor 14 for operating a second fan 38, and switching structure K1, K2, K3, and K4 constructed and arranged to operate the system at more than two different speeds.

Abstract: A method is provided for controlling speed of motors of a dual fan engine-cooling module. The method provides a dual fan engine cooling module 10 having first and second motors, 12 and 14, respectively. Each motor is constructed and arranged to drive a fan 13. The method ensures that the motors can be selectively connected 1) in series to provide a first speed of operation of each motor, with an output of the first motor being electrically connected with an input of the second motor by wire 20, 22, and 2) in parallel to provide a second speed of operation of each motor, the second speed of operation being greater than the first speed of operation. A resistance of the wire 20, 22 is manipulated to adjust a voltage that passes through each motor to control the first speed of each motor when the motors are connected in series.

Abstract: A choke 20 is provided for suppressing radio-frequency interference of a brush-type motor. The choke includes a single wire having a portion wound about a coil axis A to define a plurality of coils 24 including two outermost coils 26 and 28. An attaching structure 30 extends from one of the outermost coils and includes a loop structure 42. The loop structure is constructed and arranged to be inserted into a slot 58 in a brush card 48 and moved into hooked relation with a retaining member 60 of the brush card that is associated with the slot so as secure the choke to the brush card. At least a portion of the attaching structure is constructed and arranged to be in electrical connection with a brush 56 of a motor when the choke is secured to the brush card. An elongated end portion 44 of the choke extends directly from the other of the outermost coils.

Abstract: A method provides a heat shield on an electric motor. The motor has a housing and an endcap coupled to an end of the housing. The endcap includes a bearing pocket constructed and arranged to cover a bearing structure. The method includes coupling a heat shield directly to the motor so as to surround and cover the bearing pocket, with a portion of the heat shield being spaced from the bearing pocket.

Abstract: A choke 20 is provided for suppressing radio-frequency interference of a brush-type motor. The choke includes a single wire having a portion wound about a coil axis A to define a plurality of coils 24 including two outermost coils 26 and 28. An attaching structure 30 extends from one of the outermost coils and includes a loop structure 42. The loop structure is constructed and arranged to be inserted into a slot 58 in a brush card 48 and moved into hooked relation with a retaining member 60 of the brush card that is associated with the slot so as secure the choke to the brush card. At least a portion of the attaching structure is constructed and arranged to be in electrical connection with a brush 56 of a motor when the choke is secured to the brush card. An elongated end portion 44 of the choke extends directly from the other of the outermost coils.

Abstract: A choke 20 is provided for suppressing radio-frequency interference of a brush-type motor. The choke includes a single wire having a portion wound about a coil axis A to define a plurality of coils 24 including two outermost coils 26 and 28. An attaching structure 30 extends from one of the outermost coils and includes a loop structure 42. The loop structure is constructed and arranged to be inserted into a slot 58 in a brush card 48 and moved into hooked relation with a retaining member 60 of the brush card that is associated with the slot so as secure the choke to the brush card. At least a portion of the attaching structure is constructed and arranged to be in electrical connection with a brush 56 of a motor when the choke is secured to the brush card. An elongated end portion 44 of the choke extends directly from the other of the outermost coils.

Abstract: A choke 20 is provided for suppressing radio-frequency interference of a brush-type motor. The choke includes a single wire having a portion wound about a coil axis A to define a plurality of coils 24 including two outermost coils 26 and 28. An attaching structure 30 extends from one of the outermost coils and includes a loop structure 42. The loop structure is constructed and arranged to be inserted into a slot 58 in a brush card 48 and moved into hooked relation with a retaining member 60 of the brush card that is associated with the slot so as secure the choke to the brush card. At least a portion of the attaching structure is constructed and arranged to be in electrical connection with a brush 56 of a motor when the choke is secured to the brush card. An elongated end portion 44 of the choke extends directly from the other of the outermost coils.

Abstract: An electric motor structure includes an electric motor having a housing and an endcap coupled to an end of the housing. The endcap includes a bearing pocket constructed and arranged to cover a bearing structure. The motor structure also includes a heat shield coupled directly to the motor so as to surround and cover the bearing pocket, with a portion of the heat shield being spaced from the bearing pocket.

Abstract: An electric motor structure includes an electric motor having a housing and an endcap coupled to an end of the housing. The endcap includes a bearing pocket constructed and arranged to cover a bearing structure. The motor structure also includes a heat shield coupled directly to the motor so as to surround and cover the bearing pocket, with a portion of the heat shield being spaced from the bearing pocket.

Abstract: An electric motor structure includes an electric motor having a housing and an endcap coupled to an end of the housing. The endcap includes a bearing pocket constructed and arranged to cover a bearing structure. The motor structure also includes a heat shield coupled directly to the motor so as to surround and cover the bearing pocket, with a portion of the heat shield being spaced from the bearing pocket.