GB1483175A - Automatic choke valve apparatus for an internal combustion engine - Google Patents
Automatic choke valve apparatus for an internal combustion engineInfo
- Publication number
- GB1483175A GB1483175A GB23995/75A GB2399575A GB1483175A GB 1483175 A GB1483175 A GB 1483175A GB 23995/75 A GB23995/75 A GB 23995/75A GB 2399575 A GB2399575 A GB 2399575A GB 1483175 A GB1483175 A GB 1483175A
- Authority
- GB
- United Kingdom
- Prior art keywords
- choke
- motor
- clockwise
- throttle
- link
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/067—Introducing corrections for particular operating conditions for engine starting or warming up for starting with control of the choke
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Means For Warming Up And Starting Carburetors (AREA)
Abstract
1483175 Automatic chokes for IC engines HONDA GIKEN KOGYO KK 3 June 1975 23995/75 Heading F1H In order that a throttle 15 of an automatic choke assembly may be held open to a.greater extent at lower engine temperatures when starting, there is provided a fast idle cam 18 with an extra cam surface 18b brought into operation at low temperatures by a link 21, 22, 23 operated by a reversible pulse motor 5 which link can operate independently of a choke 2. The choke 2 is also operated by the reversible pulse motor 5 by means of a coupling which is resilient in respect of one direction of rotation of the pulse motor 5. Before starting the choke 2 is fully open and upon switching on the ignition circuit, a control means 4 rotates the motor anticlockwise so that a pawl 20 entrains link 21 to rotate the fast idle cam 18 to bring cam surface 18a beneath the throttle cam follower 17a. The torque from motor 5 is transmitted through a spring from a shaft 6 to a shaft 3 to close the choke 2. If the engine is very cold then the motor 5 rotates further anti-clockwise to bring the cam surface 18b beneath the follower 17a thus opening the throttle 15 further; the further rotation of shaft 6 being taken up by winding up the spring 7 since the choke 2 remains closed. Upon operating the starter, the motor 5 rotates clockwise so that pawl 9 engages pawl 8, thus rotating shaft 3 clockwise and opening the choke 2 to a part-open position which is maintained until the engine fires. Thereafter the choke 2 is opened automatically by clockwise rotation of the motor 5 at a rate controlled by the control means 4 until it is fully open when the engine is warm. To ensure proportionality of throttle and choke openings as the throttle is opened by anti-clockwise motion, a projection 25 on a cam follower lever 17 bears against the cam 18 to rotate it clockwise, moving a link 26, with a lost motion slot 27, upwardly, thus lifting a link 14 and opening the choke 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB23995/75A GB1483175A (en) | 1975-06-03 | 1975-06-03 | Automatic choke valve apparatus for an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB23995/75A GB1483175A (en) | 1975-06-03 | 1975-06-03 | Automatic choke valve apparatus for an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1483175A true GB1483175A (en) | 1977-08-17 |
Family
ID=10204712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB23995/75A Expired GB1483175A (en) | 1975-06-03 | 1975-06-03 | Automatic choke valve apparatus for an internal combustion engine |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1483175A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2168434A (en) * | 1984-12-15 | 1986-06-18 | Stihl Andreas | Automatic choke control for starting an i c engine |
US9464588B2 (en) | 2013-08-15 | 2016-10-11 | Kohler Co. | Systems and methods for electronically controlling fuel-to-air ratio for an internal combustion engine |
US10054081B2 (en) | 2014-10-17 | 2018-08-21 | Kohler Co. | Automatic starting system |
-
1975
- 1975-06-03 GB GB23995/75A patent/GB1483175A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2168434A (en) * | 1984-12-15 | 1986-06-18 | Stihl Andreas | Automatic choke control for starting an i c engine |
US9464588B2 (en) | 2013-08-15 | 2016-10-11 | Kohler Co. | Systems and methods for electronically controlling fuel-to-air ratio for an internal combustion engine |
US10240543B2 (en) | 2013-08-15 | 2019-03-26 | Kohler Co. | Integrated ignition and electronic auto-choke module for an internal combustion engine |
US10794313B2 (en) | 2013-08-15 | 2020-10-06 | Kohler Co. | Integrated ignition and electronic auto-choke module for an internal combustion engine |
US10054081B2 (en) | 2014-10-17 | 2018-08-21 | Kohler Co. | Automatic starting system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |