JPS5797033A - Intake control apparatus of diesel engine - Google Patents
Intake control apparatus of diesel engineInfo
- Publication number
- JPS5797033A JPS5797033A JP17220780A JP17220780A JPS5797033A JP S5797033 A JPS5797033 A JP S5797033A JP 17220780 A JP17220780 A JP 17220780A JP 17220780 A JP17220780 A JP 17220780A JP S5797033 A JPS5797033 A JP S5797033A
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- intake
- valve
- diaphragm
- condition
- 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.)
- Granted
Links
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
PURPOSE: To prevent vibration, noise and smoke due to over-throttling of intake from generating by providing a negative pressure change-over valve controlling an intake negative pressure of throttle condition under a predertermined degree for a diesel engine having an intake throttle means in a low load region such as idling etc.
CONSTITUTION: Pushing in an accelerator pedal 3 beyond a low load region, a switch 29 is made OFF closing a solenoid valve 26, negative pressure is not applied to a diaphragm chamber 12 of an actuator 10, and a throttle valve 7 is kept at a full-open condition through a spring 13. When the pedal 3 is at the condition of low load and the switch 29 is made ON, the solenoid valve 26 opens, vacuum pressure in a vacuum pump 24 is applied to the diaphragm chamber 12, and a diaphragm 11 is pulled into the chamber against the spring 13, closing the throttle valve 7 fully. When the negative pressure of an intake manifold is made beyond the fixed degree and the negative pressure is applied to a diaphragm chamber 19 of a change-over valve 14, a diaphragm 18 backs against a spring 20, a port 17 opens, the atmosphere is applied to a communication passage 15 and the chamber 12, the throlle valve 7 moves from the full- closed condition to the condition according to the vacuum pressure. Consequently the intake air volume is increased and the intake manifold negative pressure does not increase beyond the predetermined degree.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17220780A JPS5797033A (en) | 1980-12-05 | 1980-12-05 | Intake control apparatus of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17220780A JPS5797033A (en) | 1980-12-05 | 1980-12-05 | Intake control apparatus of diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5797033A true JPS5797033A (en) | 1982-06-16 |
| JPS6148619B2 JPS6148619B2 (en) | 1986-10-24 |
Family
ID=15937567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17220780A Granted JPS5797033A (en) | 1980-12-05 | 1980-12-05 | Intake control apparatus of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5797033A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS646334U (en) * | 1987-07-01 | 1989-01-13 | ||
| CN107956574A (en) * | 2016-10-18 | 2018-04-24 | 现代自动车株式会社 | For reducing the device and method of the hydrodynamic noise in commercial engine rolling stock |
-
1980
- 1980-12-05 JP JP17220780A patent/JPS5797033A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS646334U (en) * | 1987-07-01 | 1989-01-13 | ||
| CN107956574A (en) * | 2016-10-18 | 2018-04-24 | 现代自动车株式会社 | For reducing the device and method of the hydrodynamic noise in commercial engine rolling stock |
| CN107956574B (en) * | 2016-10-18 | 2021-09-28 | 现代自动车株式会社 | Apparatus and method for reducing flow noise in a commercial engine vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6148619B2 (en) | 1986-10-24 |
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