JPH0463838U

JPH0463838U -

Info

Publication number: JPH0463838U
Application number: JP4645490U
Authority: JP
Priority date: 1990-04-27
Filing date: 1990-04-27
Publication date: 1992-05-29

Description

[Brief explanation of the drawing]

第１図は本考案を適用した油空式サスペンシヨ
ンダンパの一実施例図。第２図は従来の油空式サ
スペンシヨンダンパの一例図。第３図は従来の油
空式サスペンシヨンダンパの別の一例図。第４図
は従来の油空式サスペンシヨンダンパの別の一例
図である。１……シリンダ、１ａ……シリンダ取り付け部
、２ａ……ロツド取り付け部、２ｂ……ロツド、
２ｃ……ロツド、３……ピストン、４……油室、
５……油室、６……空気室、６ａ……空気、６ｂ
……油、７……絞り弁、８……絞り弁、９……逆
止弁、２１……シリンダ、２１ａ……シリンダ取
り付け部、２２……ロツド、２２ａ……ロツド取
り付け部、２３……ピストン、２４……油室、２
５……油室、２６……空気室、２６ａ……空気、
２６ｂ……油、２７ａ……逆止弁、２７ｂ……絞
り弁、２８ａ……逆止弁、２８ｂ……絞り弁、２
９……逆止弁、３１……シリンダ、３１ａ……シ
リンダ取り付け部、３２……ロツド、３２ａ……
ロツド取り付け部、３３……ピストン、３４……
油室、３５……油室、３６……空気室、３７……
絞り弁。 FIG. 1 is a diagram showing an embodiment of a hydraulic/pneumatic suspension damper to which the present invention is applied. Figure 2 is an example of a conventional oil-pneumatic suspension damper. Figure 3 is another example of a conventional oil-pneumatic suspension damper. FIG. 4 is another example of a conventional oil-pneumatic suspension damper. 1... Cylinder, 1a... Cylinder attachment part, 2a... Rod attachment part, 2b... Rod,
2c...rod, 3...piston, 4...oil chamber,
5...Oil chamber, 6...Air chamber, 6a...Air, 6b
...Oil, 7... Throttle valve, 8... Throttle valve, 9... Check valve, 21... Cylinder, 21a... Cylinder attachment part, 22... Rod, 22a... Rod attachment part, 23... Piston, 24...Oil chamber, 2
5...Oil chamber, 26...Air chamber, 26a...Air,
26b... Oil, 27a... Check valve, 27b... Throttle valve, 28a... Check valve, 28b... Throttle valve, 2
9...Check valve, 31...Cylinder, 31a...Cylinder mounting part, 32...Rod, 32a...
Rod attachment part, 33... Piston, 34...
Oil chamber, 35...Oil chamber, 36...Air chamber, 37...
Throttle valve.

Claims

[Claims for Utility Model Registration] 1. A cylinder comprising a partition wall that separates the internal longitudinal direction into an air chamber and an oil chamber, and the oil chamber in the cylinder is provided at both ends of a piston that is slidably provided within the cylinder. In the oil-pneumatic suspension damper, the partition wall is provided with a through hole penetrating one end of the piston rod, and a throttle valve that communicates the air chamber and the oil chamber, and the piston rod is , one end of which protrudes into the air chamber through the through-hole of the partition wall, and the other end of which protrudes outward from the cylinder, and the piston has a gap communicating two oil chambers formed separately by the piston. The oil has a structure in which the passage pressure loss of the oil passing through the throttle valve provided on the partition wall is greater than the passage pressure loss of the oil passing through the gap communicating the oil chambers on both sides of the piston. Pneumatic suspension damper. 2. The partition wall that separates the air chamber and the oil chamber in the longitudinal direction has a through hole that passes through one end of the piston rod, a throttle valve that communicates the air chamber and the oil chamber, and a passageway that connects the air chamber to the oil chamber. 2. The oil-pneumatic suspension damper according to claim 1, further comprising a check valve that communicates only with the hydraulic suspension damper.