COLD STARTING DEVICE FOR USE IN AN INTERNAL COMBUSTION ENGINE

• US 3,827,417 A
• Filed: 11/30/1972
• Issued: 08/06/1974
• Est. Priority Date: 11/30/1971
• Status: Expired due to Term

• Current Assignee: Yasuyuki Morita
• Original Assignee: Yasuyuki Morita
• Inventors: Morita, Yasuyuki
• Primary Examiner(s): Myhre, Charles J.
• Assistant Examiner(s): Rutledge, Jr., W.
• Application Number:
  US05/310,734
• Time in Patent Office: 614 Days
• Field of Search: 123/187.5R,196M,198A,179B,18R,127
• US Class Current: 123/575
• CPC Class Codes: F02N 19/001 Arrangements thereof

Abstract

A cold starting device for use in an internal combustion engine which supplies starting liquid such as oil to the air intake system between a choke valve and a throttle valve of the engine before cranking of the engine in order to assist in starting the engine in winter, by increasing engine compression.

Claims

1. A cold starting device for an internal combustion engine including an air intake system having a throttle valve therein, said device comprising:

A feed tube opening at the upstream side of the throttle valve in said air intake system, supply means for supplying a starting liquid having a property of air-tightness for the combustion chamber to the feed tube before cranking of the engine, to prevent gas leakage from the combustion chamber, thereby improving the starting ability of the engine, a thermosensor for detecting engine temperature and circuit means including switching means operatively coupled to said supply means and responsive to thermosensor operation for operating said supply means when the engine temperature detected by said thermosensor is lower than a predetermined value.

2. The cold starting device as set forth in claim 1, wherein said supply means comprises an electric pump operated by a battery power source.

3. The cold starting device as set forth in claim 2, wherein said electric pump is connected through a timer to the battery power source so as to operate for a predetermined time when the engine temperature detected by the thermosensor is lower than said predetermined value.

4. The cold starting device as set forth in claim 1 wherein said starting liquid is oil.

5. A cold starting device for an internal combustion engine including aN air intake system having a throttle valve therein, said device comprising:

a feed tube opening at the upstream side of the throttle valve in said air intake system, supply means for supplying a starting liquid having a property of air-tightness for the combustion chamber to the feed tube before cranking of the engine, to prevent gas leakage from the combustion chamber, thereby improving the starting ability of the engine, a thermosensor for detecting engine temperature and circuit means including indicating means operatively coupled to said thermosensor and responsive thereto for indicating the need for operation of said supply means when the engine temperature detected by said thermosensor is lower than a predetermined value, said circuit means having switching means operatively coupled to said supply means.

6. The cold starting device as set forth in claim 5, wherein said supply means comprises an electric pump operated by a battery power source.

7. The cold starting device as set forth in claim 6, wherein said electric pump is connected through a timer to the battery power source so as to operate for a predetermined time when the engine temperature detected by the thermosensor is lower than said predetermined value.

8. The cold starting device as set forth in claim 5, wherein the starting liquid is oil.