Controller with combination function for a portable internal combustion engine

• US 10,641,187 B2
• Filed: 03/06/2018
• Issued: 05/05/2020
• Est. Priority Date: 12/14/2017
• Status: Active Grant

• Current Assignee: Champion Power Equipment Incorporated
• Original Assignee: Hangzhou Power Young Technology Co., Ltd.
• Inventors: Li, Jie, Tang, Longxin
• Primary Examiner(s): Hamaoui, David
• Application Number:
  US15/913,874
• Publication Number:
  US 20190186387A1
• Time in Patent Office: 791 Days
• CPC Class Codes: F02D 19/061 by controlling fuel injectors
• CPC Class Codes: F02D 19/0623 Failure diagnosis or prevention; Safety measures; Testing
• CPC Class Codes: F02D 19/0647 the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
• CPC Class Codes: F02D 19/0678 Pressure or flow regulators therefor; Fuel metering valves therefor
• CPC Class Codes: F02D 19/0681 Shut-off valves; Check valves; Safety valves; Pressure relief valves
• CPC Class Codes: F02D 19/08 simultaneously using pluralities of fuels F02D19/12 takes precedence
• CPC Class Codes: Y02T 10/30 Use of alternative fuels, e.g. biofuels

Abstract

A combination control assembly for dual fuel internal combustion engine comprises: a bracket (8) that is fixed on an engine shell (12); a micro switch (9) that is used to send signals; a female quick connector (7) is used to connect with the carburetor and a male quick connector (10) is used to connect with the female quick connector (7); a gas pipe (11) is used to connect with the male quick connector (10) and the other side, gaseous fuel; the bracket (8) is provided with the micro switch (9) and the female quick connector (7), the micro switch (9) is provided with a reed (91), and the male quick connector (10) is provided with a trigger tab (101). When the male quick connector (10) is connected to the female quick connector (7), the trigger tab (101) is against the reed (91). A knob component (6) is connected with the fuel valve (5) to control fuel flow in the fuel pipe (4), and the engine flameout is also controlled by the knob component (6).

Claims

1. A controller with combination function for a dual fuel internal combustion engine comprising:

a bracket (8) fixed on an engine shell (12);

a micro switch (9) used to send signals;

a female quick connector (7) used to connect with a carburetor;

a male quick connector (10) used to connect with the female quick connector (7);

a gas pipe (11) used to connect the male quick connector (10) with a gaseous fuel supply;

the micro switch (9) and the female quick connector (7) are fixed on the bracket (8), the micro switch (9) has a reed (91), the male quick connector (10) has a trigger tab (101); and

when the male quick connector (10) is connected to the female quick connector (7), the trigger tab (101) is against the reed (91).

2. The controller with combination function according to claim 1, wherein the controller further includes a knob component (6), a fuel valve (5) and a fuel pipe (4);

the knob component (6) is connected with the fuel valve (5), and the knob component (6) rotates the fuel valve (5) to control the fuel flowing through the fuel pipe (4).

3. The controller with combination function according to claim 2, wherein the controller further includes a control module and a solenoid valve;

the fuel pipe (4) is connected with the carburetor through the solenoid valve;

the micro switch (9) sends a signal to the control module when it is triggered;

the control module controls the solenoid valve to close fuel flow after receiving the signal from the micro switch (9).

4. The controller with combination function according to claim 2, wherein the knob component (6) has a contact cam (65), when the knob component (6) rotates, the contact cam (65) is contacted with a ON/OFF switch (3) to control the portable internal combustion engine shutdown.

5. The controller with combination function according to claim 4, wherein the micro switch (9) has a first pin (92), the ON/OFF switch (3) has a second pin (31), the micro switch (9) is connected with the ON/OFF switch (3) in series by connecting the first pin (92) with the second pine (31) together.

6. The controller with combination function according to claim 2, wherein the controller further includes a plate body (2);

the plate body (2) has a first hole (21);

the knob component (6) comprises a rotating part (64) and a rotation shaft (62);

the rotation shaft (62) is arranged on the rotating part (64), and is connected with the fuel valve (5) through the first hole (21).

7. The controller with combination function according to claim 6, wherein the controller further includes a choke cable (1);

the plate body (2) has a second hole (22);

the knob component (6) has a rail (61), which is arranged on the rotating part (64);

the choke cable (1) contacts with the top surface of the rail (61) by passing through the second hole (22), the rail (61) has a gradually rising height, the rotating part (64) drives the rail (61) rotation, so that the rail (61) drives the choke cable (1) up or down.

8. The controller with combination function according to claim 6, wherein a limiting block (63) is arranged on the rotating part (64), and a limiting post (23) is arranged on the plate body (2), when the limiting block (63) is in contact with the limiting post (23) the rotating part (64) is stopped.