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US 2002/0053337 A1Published application
Idle speed controller for internal combustion engine
AssigneesHitachi, Ltd., Hitachi Car Engineering Co., Ltd.
InventorsHiroaki Saeki, Kenji Watanabe
Life of this patent
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Abstract
The present invention provides an idle speed controller comprising a guide plate having a spigot portion fixedly attached to a cylindrical projected portion of a solenoid coil assembly for guiding a shaft to and away from a plunger wherein a symmetrical central axis is maintained between the shaft and the plunger during the guiding of the shaft.
Claims56
An idle speed controller comprising:
- a valve portion comprising a shaft for intake of auxiliary air;
- a solenoid portion comprising a plunger for driving said shaft and a solenoid coil assembly having a plunger guide portion for guiding said plunger, said assembly further comprising a cylindrical projected portion;
- and
- a guide plate having a spigot portion fixedly attached to said cylindrical projected portion of said assembly and a shaft guide portion for guiding said shaft wherein a symmetrical central axis is maintained between said shaft and said plunger.
1 more element
An idle speed controller comprising:
- a guide plate having a spigot portion fixedly attached to a cylindrical projected portion of a solenoid coil assembly for guiding a shaft to and away from a plunger wherein a symmetrical central axis is maintained between said shaft and said plunger during said guiding of said shaft.
An idle speed controller comprising:
- a guide plate having a spigot portion fixedly attached to a cylindrical projected portion of a solenoid coil assembly for guiding a valve portion to and away from a solenoid portion wherein a symmetrical central axis is maintained between said valve portion and said solenoid portion during said guiding of said valve portion.
An idle speed controller comprising:
- a valve portion comprising a shaft for intake of auxiliary air;
- a solenoid portion comprising a plunger for driving said shaft and a solenoid coil assembly having a plunger guide portion for guiding said plunger, said assembly further comprising a cylindrical projected portion;
- and
- a guide plate having a spigot portion fixedly attached to said cylindrical projected portion of said assembly and a shaft guide portion for guiding said shaft wherein a symmetrical central axis is maintained between said shaft and said plunger wherein an O-ring is provided in said spigot portion.
1 more element
An idle speed controller comprising:
- a guide plate having a spigot portion fixedly attached to a cylindrical projected portion of a solenoid coil assembly for guiding a valve portion to and away from a solenoid portion wherein a symmetrical central axis is maintained between said valve portion and said solenoid portion during said guiding of said valve portion;
- a solenoid case having a first flange portion in said solenoid portion;
- a valve body having a second flange portion in said valve portion;
- said guide plate further comprising a third flange portion;
- and
- wherein said flange portions are all crimped together.
3 more elements
A method of manufacturing an idle speed controller comprising the steps of:
- providing a valve portion comprising a shaft for intake of auxiliary air;
- providing a solenoid portion comprising a plunger for driving said shaft and a solenoid coil assembly having a plunger guide portion for guiding said plunger, said assembly further comprising a cylindrical projected portion;
- and
- fixedly attaching a guide plate having a spigot portion to said cylindrical projected portion of said assembly and a shaft guide portion for guiding said shaft wherein a symmetrical central axis is maintained between said shaft and said plunger.
1 more element
A method of manufacturing an idle speed controller comprising the steps of:
- fixedly attaching a guide plate having a spigot portion to a cylindrical projected portion of a solenoid coil assembly for guiding a shaft to and away from a plunger wherein a symmetrical central axis is maintained between said shaft and said plunger during said guiding of said shaft.
A method of manufacturing an idle speed controller comprising the steps of:
- fixedly attaching a guide plate having a spigot portion to a cylindrical projected portion of a solenoid coil assembly for guiding a valve portion to and away from a solenoid portion wherein a symmetrical central axis is maintained between said valve portion and said solenoid portion during said guiding of said valve portion.
A method of manufacturing an idle speed controller comprising the steps of:
- providing a valve portion comprising a shaft for intake of auxiliary air;
- providing a solenoid portion comprising a plunger for driving said shaft and a solenoid coil assembly having a plunger guide portion for guiding said plunger, said assembly further comprising a cylindrical projected portion;
- and
- fixedly attaching a guide plate having a spigot portion to said cylindrical projected portion of said assembly and a shaft guide portion for guiding said shaft wherein a symmetrical central axis is maintained between said shaft and said plunger wherein an O-ring is provided in said spigot portion.
1 more element
A method of manufacturing an idle speed controller comprising the steps of:
- fixedly attaching a guide plate having a spigot portion to a cylindrical projected portion of a solenoid coil assembly for guiding a valve portion to and away from a solenoid portion wherein a symmetrical central axis is maintained between said valve portion and said solenoid portion during said guiding of said valve portion;
- providing a solenoid case having a first flange portion in said solenoid portion;
- providing a valve body having a second flange portion in said valve portion;
- said guide plate further comprising a third flange portion;
- and
- crimping said flange portions together.
3 more elements
Dependencies are inferred from the claim text.