Air blower apparatus
AssigneeKomatsu Ltd.
InventorsKazuhiro Maruta, Nobumi Yoshida, Hiroshi Endo
Life of this patent
Estimating the term…
Abstract
Air blower apparatus (20) in which a fan boss (41) at the rotational center portion of a fan (29) has a recessed form. Meanwhile, the central part of the body portion (21) of the air blower apparatus (20), i.e., a boss portion (38), has a projecting form to be housed within the recessed fan boss (41). The central part of the body potion (21), i.e., the boss portion (38), is housed within the recessed fan boss (41) at the rotational center portion of the fan (29), and the rotary shaft (39) of the body portion (21) of the air blower apparatus (20) is mounted on the fan (29).
Claims9
An air blower apparatus comprising a hydraulic motor and a body portion provided with a rotary shaft, the hydraulic motor being mounted on the rotary shaft, the rotary shaft on which the hydraulic motor is mounted being mounted on a fan, whereby the fan is rotated by driving the hydraulic motor, wherein,
- a duct for passing air is provided;
- a shroud is formed by alienating an outer peripheral of the fan from an inner peripheral of part of the duct;
- the fan is housed in the shroud, and
- the fan and the body of the air blower apparatus are disposed so as to partially overlap each other in the direction of the rotary shaft, making width of the air blower apparatus in the direction of the rotary shaft less than total of width of the body portion of the air blower apparatus in the direction of the rotary shaft and width of the fan in the direction of the rotary shaft.
An air blower apparatus comprising a hydraulic motor and a body portion provided with a rotary shaft, the hydraulic motor being mounted on the rotary shaft, the rotary shaft on which the hydraulic motor is mounted being mounted on a fan, whereby the fan is rotated by driving the hydraulic motor, wherein
- a rotational center portion of the fan is formed with a recess,
- a substantially central part of the body portion of the air blower apparatus is formed into a projection to be housed in the recess, and
- the rotary shaft of the body portion of the air blower is mounted on the fan by housing the projection of the body portion of the air blower apparatus in the recess of the fan in such a manner than the projection of the body portion of the air blower apparatus is alienated from the recess of the fan.
An air blower apparatus comprising a hydraulic motor and a body portion provided with a power transmission device for transmitting power of the hydraulic motor to a rotary shaft of the body portion, the hydraulic motor being mounted on the power transmission device;
- the rotary shaft of the body portion which the hydraulic motor is mounted on being mounted on a fan, whereby the fan is rotated by driving the hydraulic motor, wherein
- a rotational center portion of the fan is formed with a recess,
- a part of the body portion of the air blower apparatus, where the power transmission device is provided, is formed into a projection to be housed in the recess, and
- the rotary shaft of the body portion of the air blower apparatus is mounted on the fan by the projection of the body portion of the air blower apparatus within the recess of the fan in such a manner that the projection of the body portion of the air blower apparatus is alienated from the recess of the fan.
An air blower apparatus comprising a hydraulic motor and a body portion provided with a rotary shaft, the hydraulic motor being mounted on a rotary shaft, the rotary shaft on which the hydraulic motor is mounted being mounted on a fan, whereby the fan is rotated by driving the hydraulic motor, wherein
- a duct for passing air is provided,
- a shroud is formed by alienating an outer peripheral of the fan from an inner peripheral of part of the duct,
- the fan is accommodated in the shroud,
- a substantially central part of the body portion of the air blower apparatus is formed into a projection to be housed in the recess,
- whereby the rotary shaft of the body portion of the air blower apparatus is mounted on the fan by housing the projection of the body portion of the air blower apparatus in the recess of the fan.
An air blower apparatus comprising a hydraulic motor and a body portion provided with a power transmission device for transmitting power of the hydraulic motor to a rotary shaft of the body portion, the hydraulic motor being mounted on the power transmission device;
- the rotary shaft of the body portion which the hydraulic motor is mounted on being mounted on a fan, whereby the fan is rotated by driving the hydraulic motor, wherein
- a duct for passing air is provided,
- a shroud is formed by alienating an outer peripheral of the fan from an inner peripheral of part of the duct,
- the fan is accommodated in the shroud,
- a rotational center portion of the fan is formed with a recess,
- a part of the body portion of the air blower apparatus, where the power transmission device is provided, is formed into a projection to be housed in the recess, and
- the rotary shaft of the body portion of the air blower apparatus is mounted on the fan by housing the projection of the body portion of the air blower apparatus within the recess of the fan.
Dependencies are inferred from the claim text.