JPS60125348U

JPS60125348U - Vaporizer negative pressure air-fuel ratio correction device

Info

Publication number: JPS60125348U
Application number: JP1167884U
Authority: JP
Inventors: 新藤　孝男; 真悟長田
Original assignee: 株式会社　日本気化器製作所
Priority date: 1984-02-01
Filing date: 1984-02-01
Publication date: 1985-08-23
Also published as: JPH0139883Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面はこの考案の気化器の負圧式加速ポンプを説明する
ための略断面図である。図面における参照数字とこの考
案の主要構成部分との関係は次のとおりである。１０・・・気化器、１２・・・加速ポンプのケーシング
、１４・・・ダイアフラム、１６・・・第一の負圧室、
１８・・・第二の負圧室、２０・・・スロットル・バル
ブ、２２・・・負圧導入開口、２４・・・負圧通路、２
６・・・狭さく通路、３０・・・通路、３２・・・浮子
室、３４・・・狭さく通路、３６・・・空気通路、４０
・・・加速燃料通路、４４・・・弁部材、４６・・・空
気通路、５０・・・弁棒、５２・・・コイルバネ、９０
・・・開口、９２・・・通路、９４・・・弁装置。The drawing is a schematic cross-sectional view for explaining the negative pressure type acceleration pump of the vaporizer of this invention. The relationship between the reference numerals in the drawings and the main components of this invention is as follows. DESCRIPTION OF SYMBOLS 10... Carburizer, 12... Accelerator pump casing, 14... Diaphragm, 16... First negative pressure chamber,
18... Second negative pressure chamber, 20... Throttle valve, 22... Negative pressure introduction opening, 24... Negative pressure passage, 2
6... Narrow passage, 30... Passage, 32... Float chamber, 34... Narrow passage, 36... Air passage, 40
... Acceleration fuel passage, 44... Valve member, 46... Air passage, 50... Valve rod, 52... Coil spring, 90
...opening, 92...passage, 94...valve device.

Claims

[Scope of Claim for Utility Model Registration] A casing, a diaphragm that divides the casing into a first negative pressure chamber and a second negative pressure chamber, and a negative pressure introduction opening provided on the downstream side of the throttle valve of the carburetor. a first negative pressure passage that connects the first negative pressure chamber and the negative pressure introduction opening; and a first negative pressure passage that connects to the first negative pressure passage and connects to the second negative pressure chamber through a narrow passage. a second negative pressure passage that communicates with the first negative pressure passage; a third negative pressure passage that branches from the first negative pressure passage; and a third negative pressure passage that is connected to the liquid level of the fuel in the float chamber through a valve device. an acceleration fuel passage that opens at the bottom of the float chamber of the carburetor and is directly connected to the third negative pressure passage above the fuel level in the float chamber; a device that opens and closes the valve device by movement of the diaphragm due to a pressure difference between the first and second negative pressure chambers; a second opening located upstream of the throttle valve; a passage communicating the second opening with the second negative pressure chamber; A negative pressure accelerator pump for a carburetor, which is equipped with a valve device that operates in response to changes in temperature and opens during warm-up.