Power generation system

• US 10,379,163 B2
• Filed: 05/07/2018
• Issued: 08/13/2019
• Est. Priority Date: 02/25/2016
• Status: Active Grant

• Current Assignee: Tatsumi Ryoki Co Ltd
• Original Assignee: Tatsumi Ryoki Co Ltd
• Inventors: Kondo, Toyoshi
• Primary Examiner(s): Hollington, Jermele M
• Assistant Examiner(s): Nasir, Taqi
• Application Number:
  US15/972,288
• Publication Number:
  US 20180252773A1
• Time in Patent Office: 463 Days
• Field of Search: 32476501, 324177, 324139, 324143, 324772, 324 51, 324 66, 324 731, 32476401, 32476201, 324544, 324548
• CPC Class Codes: F02B 63/044 the engine-generator unit being placed on a frame or in an housing
• CPC Class Codes: G01R 1/203 Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts resistors in general H01C; microwave or radiowave terminations H01P1/26; coupling devices H01R
• CPC Class Codes: G01R 1/44 Modifications of instruments for temperature compensation
• CPC Class Codes: G01R 31/34 Testing dynamo-electric machines
• CPC Class Codes: G01R 31/343 in operation
• CPC Class Codes: H02K 11/20 for measuring, monitoring, testing, protecting or switching rectifiers H02K11/04; power electronics H02K11/33
• CPC Class Codes: H02K 7/1815 structurally associated with reciprocating piston engines general aspects of generating sets, e.g. housing, F02B63/04

Abstract

A power generation system including a load testing device in which a configuration component is less likely to be deteriorated is provided. A power generation system includes an engine including an engine main body, a radiator that performs heat exchange of cooling water flowing inside the engine main body, and a fan that cools an radiator. A power generator that converts torque acquired in the engine main body into electricity is included. A load testing device that includes a plurality of resistors and that is used to perform a loading test of the power generator is included. A switching device that performs at least one of changing a position of the load testing device and changing a flow channel of cooling air from the fan, in order to deviate the load testing device from the flow channel or to place the load testing device in the flow channel and on a downstream side of the radiator in the loading test is included.

Claims

1. A power generation system comprising:

an engine including an engine main body, a radiator that performs heat exchange of cooling water flowing inside the engine main body, and a fan that cools the radiator;

a power generator that converts torque acquired in the engine main body into electricity;

a load testing device that includes a plurality of resistors and that is configured to perform a loading test of the power generator;

a flow channel of a cooling medium; and

a switching device that performs changing a relative position of the load testing device with respect to the flow channel, in order to deviate the load testing device from the flow channel or to place the load testing device in the flow channel and on a downstream side of the radiator in the loading test.

2. The power generation system according to claim 1, wherein the switching device includes a guide that holds the load testing device in a slidable state in order to change the relative position of the load testing device with respect to the flow channel.

3. The power generation system according to claim 2, further comprising a power supply control unit that keeps power supply from the power generator to the load testing device when the load testing device is placed in the flow channel and on the downstream side of the radiator and that cuts off the power supply from the power generator to the load testing device when the load testing device is deviated from the flow channel.

4. The power generation system according to claim 2, further comprising a case that houses the engine and the power generator,

wherein the load testing device and the guide are arranged on an upper part of the case, and

a cover that covers at least an upper surface of the load testing device when the load testing device is deviated from the flow channel is provided.

5. A power generation system comprising:

an engine including an engine main body, a radiator that performs heat exchange of cooling water flowing inside the engine main body, and a fan that cools the radiator;

a power generator that converts torque acquired in the engine main body into electricity;

a load testing device that includes a plurality of resistors and that is configured to perform a loading test of the power generator; and

a switching device that performs changing a flow channel of cooling air from the fan, in order to deviate the load testing device from the flow channel or to place the load testing device in the flow channel and on a downstream side of the radiator in the loading test,

wherein an outlet of the flow channel includes a first outlet not facing the load testing device and a second outlet facing the load testing device, and

the switching device includes a flow channel switching plate that shields one of the first outlet and the second outlet and that opens the other in order to change the flow channel.

6. The power generation system according to claim 5, further comprising a case that houses the engine and the power generator,

wherein the first outlet is provided in an upper opening of the case,

the second outlet is provided in a front opening of the case,

the flow channel switching plate is arranged on the upper opening in a case where the first outlet is shielded and the second outlet is opened, and

the flow channel switching plate is arranged between the front opening and the load testing device in a case where the second outlet is shielded and the first outlet is opened.

7. The power generation system according to claim 5, further comprising a power supply control unit that keeps power supply from the power generator to the load testing device when the flow channel switching plate opens the second outlet and that cuts off the power supply from the power generator to the load testing device when the flow channel switching plate shields the second outlet.