JPH0299281U

JPH0299281U -

Info

Publication number: JPH0299281U
Application number: JP810089U
Authority: JP
Priority date: 1989-01-25
Filing date: 1989-01-25
Publication date: 1990-08-07

Description

[Brief explanation of drawings]

第１図〜第３図は本考案の一実施例を示し、第
１図は第２図の―線に沿つた断面図、第２図
はスクロール型圧縮機の縦断面図、第３図は給油
手段の分解斜視図である。第４図および第５図は
従来例としてのトロコイドポンプを示し、第４図
はクランク軸下端部の縦断面図、第５図は第４図
の―線に沿つた断面図である。１……スクロール型圧縮機、２……密閉ケーシ
ング、２ｅ……貯留部、７……固定スクロール、
８……公転スクロール、７ａ，８ａ……鏡板、７
ｂ，８ｂ……ラツプ、８ｅ……背面、１０……ク
ランク軸、Ｏ_２……クランク軸心、１０ｆ……給
油路、１５……給油手段、１６……ロータ部、１
６ａ……凹部、１６ｃ……吸入通路、１７……ハ
ウジング部材、１７ｂ……吸入孔、１７ｃ……側
壁、１８……ベーン、１８ａ……背面、１９……
バネ部材、２０……油室、Ｏ……潤滑油。 1 to 3 show one embodiment of the present invention, FIG. 1 is a sectional view taken along the line - in FIG. 2, FIG. 2 is a vertical sectional view of a scroll compressor, and FIG. FIG. 3 is an exploded perspective view of the oil supply means. 4 and 5 show a conventional trochoid pump, in which FIG. 4 is a vertical sectional view of the lower end of the crankshaft, and FIG. 5 is a sectional view taken along the line -- in FIG. 4. 1... Scroll type compressor, 2... Sealed casing, 2e... Storage section, 7... Fixed scroll,
8...Revolving scroll, 7a, 8a... End plate, 7
b, 8b... Wrap, 8e... Back, 10... Crankshaft, O ₂ ... Crankshaft center, 10f... Oil supply path, 15... Oil supply means, 16... Rotor section, 1
6a... recess, 16c... suction passage, 17... housing member, 17b... suction hole, 17c... side wall, 18... vane, 18a... back, 19...
Spring member, 20... oil chamber, O... lubricating oil.

Claims

[Claims for Utility Model Registration] (1) A fixed scroll 7 and a revolving scroll 8 are housed in a sealed casing 2, and both scrolls 7 and 8 are provided with wraps 7b on the front surfaces of end plates 7a and 8a, respectively.
, 8b are vertically arranged, and are arranged in parallel with the laps 7b and 8b meshing with each other.A crankshaft 10 is connected to the back surface 8e of the end plate 8a of the revolving scroll 8. is provided with an oil supply means 15 at its lower end by being immersed in the lubricating oil O stored in the storage part 2e at the bottom of the casing, and an oil supply path 10f communicating with the oil supply means 15.
In the scroll type fluid device in which the revolving scroll 8 is made to revolve with respect to the fixed scroll 7 by the rotation of the crankshaft 10, the oil supply means 15 is provided at the lower end of the crankshaft 10 in the circumferential direction. A rotor portion 1 is formed with a recess 16a and is eccentric from the crankshaft center _O2 .
6 and a housing member 17 into which the lower end of the crankshaft 10 is fitted so as to surround the rotor portion 16, supported by the casing 2, and forming an oil chamber 20 between the housing member 17 and the rotor portion 16. A suction passage 16c is formed in the rotor portion 16 and communicates the oil supply passage 10f with the oil chamber 20,
On the other hand, the housing member 17 has the oil chamber 20
A suction hole 17b is formed to communicate between the oil chamber 20 and the storage portion 2e, and a vane 18 that partitions the oil chamber 20 into a high-pressure side and a low-pressure side is provided in the oil chamber 20 so as to be freely retractable. Scroll type fluid device. (2) In the scroll type fluid device according to claim (1), one end of the oil supply means 15 is attached to the back surface 18a of the vane 18, and the other end is attached to the housing member side wall 17c at a position facing the vane 18. A scroll-type fluid device comprising a ring-shaped spring member 19 that presses a vane 18 toward a rotor portion 16. (3) The scroll type fluid device according to claim (1) or (2), wherein the housing member 17 also serves as a bearing member for the crankshaft 10.