公开(公告)号：US4159290A

公开(公告)日：1979-06-26

申请号：US913057

申请日：1978-06-06

Applicant: Kiyomi Honma ,  Yoshikazu Aochi ,  Takao Teranishi ,  Kenichi Chonan

Inventor： Kiyomi Honma ,  Yoshikazu Aochi ,  Takao Teranishi ,  Kenichi Chonan

IPC: F02M7/22 ,  F02M9/10 ,  F02M9/08

CPC classification number: F02M9/103

Abstract: A variable stage type carburetor having an intake passage, a throttle valve disposed in the intake passage, and a movable vane disposed at the upstream side of the throttle valve, the movable vane being adapted to cooperate with the wall of the intake passage in constituting a variable venturi and operatively connected to the throttle valve, so as to be moved in response to the movement of the throttle valve. The carburetor further has a first vane controller adapted for displacing the movable vane in the closing direction, independently of the throttle valve, when the venturi vacuum is lowered, and a second vane controller adapted to displace the movable vane in the closing direction, also independently of the throttle valve, when the force exerted by the intake air flow on the movable vane drops below a predetermined level.

Abstract translation: 一种具有进气通道，设置在进气通道中的节流阀和设置在节流阀上游侧的可动叶片的可变台式化油器，可动叶片适于与构成进气通道的壁相配合 可变文氏管并且可操作地连接到节流阀，以便响应于节流阀的运动而移动。 化油器还具有第一叶片控制器，其适于在文丘里管真空降低时独立于节流阀使关闭方向上的可移动叶片移动;以及第二叶片控制器，其适于在关闭方向上移动可移动叶片，并且还独立地 当由吸入气流施加在可动叶片上的力降低到预定水平时。

公开(公告)号：US3969445A

公开(公告)日：1976-07-13

申请号：US529111

申请日：1974-12-03

Applicant: Gustav Vogelsang

Inventor： Gustav Vogelsang

IPC: F02M9/10 ,  F02M17/09 ,  F02M7/22

CPC classification number: F02M17/09 ,  F02M9/106 ,  Y10S261/06 ,  Y10S261/58

Abstract: A carburetor has a choke device formed of two planar quadrangular choke flaps situated side-by-side in a cross-sectionally quadrangular flow passage of an engine intake manifold. The pivotal supports for the choke flaps are held in recesses of the manifold wall and define a pivotal axis that lies in an edge zone of the choke flaps that is immediately adjacent the manifold wall. The choke flaps further have cooperating edge zones that together define the cross section of the flow passage as a function of pressure conditions in the intake manifold. In the fully open position, the choke flaps are in a face-to-face engagement with opposite wall portions of the intake manifold.

Abstract translation: 化油器具有由发动机进气歧管的横截面四边形流动通道并排设置的两个平面四边形扼流圈形成的扼流装置。 扼流圈的枢转支撑件保持在歧管壁的凹部中并且限定位于紧挨着歧管壁的扼流圈的边缘区域中的枢转轴线。 扼流圈还具有配合的边缘区域，其一起限定流动通道的横截面，作为进气歧管中压力条件的函数。 在完全打开的位置，扼流圈与进气歧管的相对的壁部分面对面地接合。

公开(公告)号：US3935290A

公开(公告)日：1976-01-27

申请号：US491597

申请日：1974-08-05

Applicant: William E. Dickensheets ,  Albert A. Pruchno

Inventor： William E. Dickensheets ,  Albert A. Pruchno

IPC: F02M1/04 ,  F02M9/10 ,  F02M1/06

CPC classification number: F02M9/106 ,  F02M1/04 ,  Y10S261/56

Abstract: A variable area venturi carburetor has the cold engine cranking and running circuits integrated with the venturi valve circuit, to simplify the construction as compared to known carburetors of this type in which the circuits are independent, the integration being provided by an articulated linkage moving the venturi valve in response to engine manifold vacuum changes, the carburetor having an auxiliary air and fuel passage also controlled by manifold vacuum during cold engine operation to provide controlled air and the extra fuel required for cold cranking and running, and shutting down of the extra fuel supply and opening the air supply when the engine reaches the normal operating temperature.

Abstract translation: 可变区域文丘里化油器具有与文丘里管电路集成的冷发动机起动和运行回路，与其中电路是独立的这种类型的已知化油器相比，简化了结构，该集成由铰链连接件提供，移动文丘里管 阀门响应于发动机歧管真空变化，具有辅助空气和燃料通道的化油器也在冷发动机运行期间由歧管真空控制，以提供受控的空气和冷启动和运行所需的额外燃料，以及关闭额外的燃料供应 当发动机达到正常工作温度时打开供气。

公开(公告)号：US3929942A

公开(公告)日：1975-12-30

申请号：US43082474

申请日：1974-01-04

Applicant: FORD MOTOR CO

Inventor： HARRISON ROBERT S ,  MEDRICK JOHN D ,  NOWROSKI ALVIN P

IPC: F02M1/04 ,  F02M1/10 ,  F02M9/10

CPC classification number: F02M1/046 ,  F02M1/10 ,  F02M9/106

Abstract: The carburetor throttle plate shaft has fixed to it a lever that normally engages a first stepped edge of a fast idle cam rotated by a temperature responsive element to determine the closed throttle plate, running engine, idle speed position as a function of temperature changes. During engine starting, a second stepped edge of greater projection is engaged with the lever to open the throttle plates wider to initially supply more air and fuel to the engine, the openings varying with temperature. Once the engine attains a running condition, the lever is withdrawn from engagement with the second stepped edge and re-engaged with the first stepped edge to provide a more conventional cold engine running operation, the throttle plates then closing down to less open positions. Simultaneously, during cranking, the temperature control positions a supplemental fuel control needle valve to supply extra fuel to the carburetor during cold engine operation that changes with temperature changes. The extra fuel is inducted along with fuel from the main fuel supply system.

Abstract translation: 化油器节流板轴已经固定在其上，该杠杆通常与由温度响应元件旋转的快速空转凸轮的第一阶梯边缘接合，以确定关闭的节流板，运行的发动机，作为温度变化的函数的怠速位置。 在发动机启动期间，具有更大突出的第二阶梯形边缘与杠杆接合以打开更宽的节流板，以便最初向发动机提供更多的空气和燃料，开口随着温度变化。 一旦发动机达到运行状态，杠杆从与第二阶梯形边缘的接合中撤出并与第一阶梯边缘重新接合，以提供更传统的冷发动机运行操作，节流板然后关闭到较少的打开位置。 同时，在起动期间，温度控制定位补充燃料控制针阀，以在随着温度变化而变化的冷发动机运行期间向化油器提供额外的燃料。 额外的燃料与来自主燃料供应系统的燃料一起被引入。

公开(公告)号：US3920777A

公开(公告)日：1975-11-18

申请号：US43096974

申请日：1974-01-04

Applicant: FORD MOTOR CO

Inventor： HARRISON ROBERT S ,  MEDRICK JOHN D ,  NOWROSKI ALVIN P

IPC: F02D9/02 ,  F02M1/04 ,  F02M1/10 ,  F02M9/10 ,  F02M3/06

CPC classification number: F02M9/106 ,  F02M1/046 ,  F02M1/10

Abstract: A downdraft type carburetor has a fast idle cam with a stepped edge that cooperates with a lever attached to the throttle plate shaft to open the throttle plates beyond the normal idle speed positions during cold weather operation for fast idle speeds, the fast idle cam being rotated by a temperature responsive device; during starting, the throttle plates are opened wider, and by degree as a function of the temperature, by the shaft lever engaging a step of a second series of steps on the fast idle cam, the latter steps each projecting more into the path of closing movement of the throttle shaft lever than the first series of steps; a spring positioning the second series of steps in position during starting; a vacuum servo replacing the second series of steps with the first series upon the engine attaining running condition, to close down the throttle plates to less open fast idle positions.

公开(公告)号：US3880962A

公开(公告)日：1975-04-29

申请号：US34697273

申请日：1973-04-02

Applicant: COLT IND OPERATING CORP

Inventor： RHODES JERRY P ,  BIER KENNETH C

IPC: F02M7/20 ,  F02M7/12 ,  F02M9/10 ,  F02M7/24

CPC classification number: F02M9/103 ,  F02M7/12 ,  Y10S261/56

Abstract: In a carburetor having an induction passage, a variable venturi in the induction passage, a fuel bowl and means for metering fuel flow from the fuel bowl to the induction passage, for example, the method of compensating for changes in barometric pressure due to either atmospheric or altitude changes is disclosed as providing an auxiliary passage including variable restriction means therein communicating between the fuel within the fuel bowl and the induction passage, applying venturi generated vacuum to the auxiliary passage in order to thereby cause flow of fuel therethrough, varying the value of the venturi generated vacuum generally in response to the volume rate of air flow through the variable venturi, and varying the effective flow area of the variable restriction means generally in accordance with barometric pressure. A carburetor having an induction passage with a variable venturi and a fuel bowl has barometrically controlled variable restriction means in combination with passage means communicating between the fuel within the fuel bowl and the induction passage, vacuum generated by the variable venturi is applied to the passage means to cause a pressure differential across the fuel thereby resulting in fuel flow through the passage means, the barometrically controlled variable restriction means is effective to vary the rate of fuel flow therethrough in response to said vacuum, and additional means responsive to the opening and closing movement of said variable venturi is effective to vary the magnitude of said vacuum generated by the variable venturi.

Abstract translation: 在具有进气通道的化油器中，在所述进气通道中的可变文丘里管，燃料碗和用于计量从所述燃料杯到所述进气通道的燃料流量的装置，例如补偿大气压力变化的方法 或高度变化被公开为提供辅助通道，其包括在燃料碗内的燃料与进气通道之间连通的可变限制装置，将文丘里管产生的真空施加到辅助通道，从而使燃料流过其中， 文丘里管通常响应于通过可变文丘里管的气流的体积速率而产生真空，并且通常根据大气压改变可变限制装置的有效流动面积。

公开(公告)号：US3752451A

公开(公告)日：1973-08-14

申请号：US3752451D

申请日：1972-01-21

Applicant: POLLUTION CONTROL IND INC

Inventor： KENDIG W

IPC: F02M1/10 ,  F02M7/22 ,  F02M9/10 ,  F02M9/08

CPC classification number: F02M9/106 ,  F02M1/10 ,  F02M7/22 ,  Y10S261/58

Abstract: A downdraft carburetor of the air valve type having a mixing passage provided at its upstream end with two pivoted plates or air valves forming a variable venturi, and provided with two pivoted throttle plates adjacent its downstream end. A fuel spray bar in the mixing passage between the venturi plates and the throttle plates discharges fuel into the mixing passage and is supplied with fuel by a pivoted pickup arm movable in a fuel chamber over a calibrated metering ramp which cooperates with the free end of the pickup arm to form a variable fuel metering clearance therebetween. The fuel chamber may be pressurized, or the level therein may be controlled by a float. The venturi plates are biased closed by springs, one of which is a bimetallic spring coming into operation only when the engine is cold to provide a choke.

Abstract translation: 空气阀类型的下降式化油器具有在其上游端设有两个枢转板或形成可变文氏管的空气阀的混合通道，并在其下游端附近设置有两个枢转的节流板。 在文丘里板和节流板之间的混合通道中的燃料喷射杆将燃料排放到混合通道中，并且通过枢转的拾取臂将燃料供给燃料，所述枢转的拾取臂可在燃料室中移动经过校准的计量斜坡，其与自由端 拾取臂以在其间形成可变的燃料计量间隙。 燃料室可以被加压，或者其中的液位可以由浮子控制。 文丘里板被弹簧偏压闭合，其中之一是双金属弹簧，只有当发动机冷却才能提供扼流圈时才进行操作。

公开(公告)号：US3439903A

公开(公告)日：1969-04-22

申请号：US3439903D

申请日：1966-09-19

Applicant: JULIUS TOLNAI

Inventor： TOLNAI JULIUS

IPC: F02M7/16 ,  F02M17/16 ,  F02M29/02 ,  F02M9/10

CPC classification number: F02M29/02 ,  F02M7/16 ,  F02M17/16

公开(公告)号：US3069146A

公开(公告)日：1962-12-18

申请号：US5299060

申请日：1960-08-30

Applicant: SOROBAN ENGINEERING INC

Inventor： MACNEILL JOHN H

IPC: F02M7/22 ,  F02M9/10

CPC classification number: F02M9/10 ,  F02M7/22

公开(公告)号：US2907557A

公开(公告)日：1959-10-06

申请号：US61221556

申请日：1956-09-26

Applicant: SEBAC NOUVELLE S A SOC

Inventor： HENRI COANDA

IPC: B01F3/04 ,  B01F3/08 ,  B01F5/02 ,  B01F5/04 ,  B05B7/00 ,  B05B7/02 ,  B05B7/08 ,  F02M9/10 ,  F02M17/10

CPC classification number: B01F3/04049 ,  B01F3/08 ,  B01F5/0256 ,  B01F5/0451 ,  B01F5/0453 ,  B05B7/0075 ,  B05B7/02 ,  B05B7/0846 ,  F02M9/103 ,  F02M17/10 ,  Y10S55/28 ,  Y10S239/07