JPH01152040U

JPH01152040U -

Info

Publication number: JPH01152040U
Application number: JP4880088U
Authority: JP
Priority date: 1988-04-13
Filing date: 1988-04-13
Publication date: 1989-10-19

Description

[Brief explanation of the drawing]

第１図は本考案のフアースト・アイドル・エア
・バルブを示す縦断面図、第２図は弁体、デイス
タンス・スプリング、従動部材をクリツプ輪を使
用してサブ組立する前の状態を示す図、第３図は
弁体、デイスタンス・スプリング、従動部材をサ
ブ組立した状態を示す図、第４図は従来構成を示
す縦断面図、第５図はデイスタンス・スプリング
と従動部材とをワツシヤとクリツプ輪とを使用し
てサブ組立する前の状態及び弁体とを示す図であ
る。符号の説明、１……スロツトルボデイー、２…
…主吸気通路、３……絞り弁、４……フアースト
・アイドル・エア・バルブ、５，６……主吸気通
路とフアースト・アイドル・エア・バルブとの連
通路、７……弁座、８……弁体、９……弁ばね、
１０……ワツクス・サーモ、１１……冷却水が循
環する空間、１２……作動桿、１３……従動部材
、１６……鍔部、１７……デイスタンス・スプリ
ング、１９……有底穴、２０……クリツプ輪、２
１……環状溝。 Fig. 1 is a vertical sectional view showing the first idle air valve of the present invention, and Fig. 2 is a view showing the state before the valve body, distance spring, and driven member are sub-assembled using a clip ring. , Fig. 3 is a diagram showing the state in which the valve body, distance spring, and driven member are sub-assembled, Fig. 4 is a vertical sectional view showing the conventional configuration, and Fig. 5 is a diagram showing the distance spring and the driven member in a washer assembly. FIG. 3 is a diagram showing the valve body and the state before subassembling using the clip ring and the valve body. Explanation of symbols, 1...Throttle body, 2...
...Main intake passage, 3... Throttle valve, 4... Fast idle air valve, 5, 6... Communication passage between main intake passage and first idle air valve, 7... Valve seat, 8 ... Valve body, 9... Valve spring,
10... Wax thermo, 11... Space where cooling water circulates, 12... Operating rod, 13... Followed member, 16... Flange, 17... Distance spring, 19... Bottomed hole, 20...Clip ring, 2
1...Annular groove.

Claims

[Scope of utility model registration request]

A first idle air valve 4 that is arranged in the main intake passage 2 and controls the flow rate of air supplied to the engine during warm-up operation by bypassing the throttle valve 3 that is at the idling opening. a valve body 8 which is biased by a valve spring 9 in a direction away from the valve body 7; a wax thermostat 10 having an operating rod 12 that moves back and forth depending on changes in engine temperature;
a driven member 13 that abuts and follows the operating rod 12;
A distance spring 17 is provided between the driven member 13 and the valve body 8, and when the valve body 8 is away from the valve seat 7, the distance spring 17 has a constant length. When the valve body 8 moves in accordance with the forward and backward movement of the actuating rod 12 while maintaining the same position, and the actuating rod 12 is further pushed out even after the valve element 8 contacts the valve seat 7, the In the first idle air valve 4, the driven member 13 can be driven by the actuating rod 12 by compression of the distance spring 17,
The valve body 8 is provided with a bottomed hole 19 that opens toward the wax/thermo 10 side.
An annular groove 21 is formed on the inner circumferential surface of the hole 19 in the vicinity of the open end thereof, and after inserting the distance spring 17 and the driven member 13 into the bottomed hole 19, By attaching the clip ring 20, the valve body 8 and the distance
A first idle air valve characterized in that a spring 17 and the driven member 13 are integrated by a subassembly.