| Patent application number | Description | Published |
|---|
| 20090008191 | Piston Apparatus - In order to decrease internal friction of a heat engine that converts a reciprocating motion of a piston into a rotational motion, a piston apparatus ( | 01-08-2009 |
| 20100139263 | PISTON ENGINE - A Stirling engine has a fluid passage that connects a low temperature-side actuating fluid space and a crankcase inner space, and a passage opening/closing valve that is provided in the fluid passage and that opens and closes the fluid passage. The passage opening/closing valve enables communication through the fluid passage upon startup of the Stirling engine, and shuts off communication through the fluid passage when the rotational speed of the crankshaft of the Stirling engine is equal to or greater than a pre-established start-enabling rotational speed. | 06-10-2010 |
| 20100146962 | PISTON ENGINE - A Stirling engine is provided with a fluid passage that connects a low temperature-side actuating fluid space and a crankcase inner space, and a passage opening/closing valve that is provided in the fluid passage and that opens and closes the fluid passage. Upon stopping of the Stirling engine, the passage opening/closing valve enables communication through the fluid passage, at a region at which the piston floats in the cylinder. This region is determined based on the pressure of an actuating fluid in the actuating fluid space and the rotational speed of a crankshaft of the Stirling engine. | 06-17-2010 |
| 20100199944 | PISTON ENGINE AND STIRLING ENGINE - A piston is coupled to a connecting rod which is rotatably coupled to a crankshaft via an extension rod. With the configuration, reciprocating motion of the piston is transmitted to the crankshaft and converted to rotational motion. At both ends of the extension rod, a piston-side joint mechanism and a crankshaft-side joint mechanism each constructed by a spherical sliding bearing are provided. The piston is coupled to the extension rod via the piston-side joint mechanism, and the extension rod is coupled to the connecting rod via the crankshaft-side joint mechanism. | 08-12-2010 |
| 20100257857 | STIRLING ENGINE - A Stirling engine includes a plurality of α-type Stirling cycle mechanisms, each of which includes a first piston and a second piston and pressurizes a crankcase space. The mechanisms are coupled to each other via a common rotary shaft so that each of the mechanisms generates a torque variation waveform in which the number of periods per rotation is two. | 10-14-2010 |
| 20100257858 | PISTON ENGINE AND STIRLING ENGINE - A high temperature side cylinder of a Stirling engine is composed of a sleeve and a cylinder block. A high temperature side piston makes a reciprocating motion in the sleeve. The sleeve is connected to a heater that heats a working fluid of the Stirling engine so that heat of the heater is transmitted. A cylinder block is disposed outside of the sleeve. A predetermined interval is formed between the sleeve and the cylinder block, and an air layer is formed in the predetermined interval. | 10-14-2010 |
| 20100275594 | EXHAUST HEAT RECOVERY SYSTEM - An exhaust heat recovery system includes a plurality of Starling engines. Heaters of the Starling engines are disposed in an exhaust passage that is a heat medium passage. An inside of the exhaust passage is partitioned with a partitioning member into a first exhaust passage and a second exhaust passage. The heater of the Starling engine disposed on an upstream side in a flowing direction of exhaust gas is provided in the first exhaust passage, and the heater of the Starling engine disposed on a downstream side in the flowing direction of the exhaust gas is provided in the second exhaust passage. | 11-04-2010 |
| 20110197755 | GAS LUBRICATION STRUCTURE FOR PISTON, AND STIRLING ENGINE - A gas lubrication structure is provided with a high-temperature-side cylinder, an expansion piston lubricated relative to the high-temperature-side cylinder by gas, and a layer provided to the outer peripheral surface of the expansion piston and composed of a material flexible and having a higher linear expansion coefficient than the base material of the expansion piston. The thickness of the layer under normal temperatures is not less than the size of the clearance formed between the layer and the high-temperature-side cylinder. Also, even if the layer is thermally expanded under use conditions, the layer under normal temperatures has a thickness enabling a clearance to be formed between the layer and the high-temperature-side cylinder. | 08-18-2011 |
