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AssigneeKabushiki Kaisha Toyota Jidoshokki
InventorsToshiro Fujii, Kazuo Murakami, Yoshiuki Nakane, Kenichi Morita
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The present invention prevents the clogging of the oil supply hole in a compressor due to foreign substances, such as sludge, and avoids performance degradation caused by the leakage of the discharged refrigerant. In a compressor that is configured to guide the lubricating oil separated from the discharged refrigerant by an oil separator to the radial bearing supporting the drive shaft, through an oil supply hole 29, a rotating member 30 that rotates together with said drive shaft is provided adjacent to the radial bearing on the drive shaft. Moreover, an outlet 29a of the oil supply hole 29 opens to the internal surface of a circular hole 31 that supports the rotating member 30. A channel 34 for restricting the flow rate comprises a gap defined between the rotating member 30 and the circular hole 31, and restricts the flow rate discharged from the oil supply hole 29 to the radial bearing, and at the same time, the rotation of the rotating member 30 sweeps out foreign substances, such as sludge, from the outlet 29a of the oil supply hole 29.
A compressor having a lubrication target area to be lubricated and an oil supply hole for guiding lubricating oil to said lubrication target area, wherein a flow-restricting channel includes a gap defined between a cylindrical hole and a member that rotates or reciprocates inside the cylindrical hole and communicates with an outlet of said oil supply hole, said channel is defined such that the area defined by the perimeter of said outlet and the height of the channel is significantly smaller compared to the area of the outlet of said oil supply hole, and foreign substances, such as sludge, are swept out from said outlet by the said reciprocating or rotating member.
A method of lubricating a compressor having a lubrication target area to be lubricated, an oil supply hole for guiding lubricating oil to said lubrication target area, and a flow-restricting channel communicated to an outlet of the oil supply hole, and in which said channel comprises a gap defined between a cylindrical hole and a member that rotates or reciprocates inside the cylindrical hole, the method comprising:
Dependencies are inferred from the claim text.