摘要:
When a temperature setting means M1 sets the steam temperature at the outlet of an evaporator 10 on the basis of the temperature and flow rate of exhaust gas at the inlet of the evaporator 10, a temperature control means M2 controls the steam temperature at the outlet of the evaporator 10 so that it is equal to the set temperature. Further, when a pressure setting means M3 sets the steam pressure at the inlet of an expander 11 on the basis of the set temperature, a pressure control means M4 controls the steam pressure at the inlet of the expander 11 so that it is equal to the set pressure. This ensures that the steam at a temperature at which the total efficiency of the evaporator 10 and expander 11 is at maximum is produced in the evaporator 10 and that the steam at the optimum pressure corresponding to the expansion ratio for the expander 11 is fed so as to increase the efficiency of the expander 11, thereby making it possible to improve the performance of the Rankine cycle device.
摘要:
An exhaust port structure of an internal combustion engine, wherein a cylinder head has a cylinder head body and a cylindrical exhaust port liner partly supported at a plurality of locations thereof on the cylinder head body and surrounded by an insulation layer, thereby minimizing heat conduction from the exhaust port liner to the cylinder head body.
摘要:
A condenser, comprising a cooling part having a plurality of steam passages for converting steam into water, a blower sucking the water produced in the steam passages from the passages, and a collecting part accepting the sucked water, whereby the steam passages are prevented from being clogged by the water produced in the steam passages of the cooling part.
摘要:
Rotary fluid machinery, comprising a casing (7), a rotor (31), and a plurality of vane piston units (U1 to U12) disposed radially in the rotor (31), each of the vane piston units (U1 to U12) further comprising a vane (42) sliding the inside of a rotor chamber (14) and a piston (41) in contact with the non-sliding side of the vane (42), wherein, when the rotary fluid machinery functions as an expansion device (4), the pistons (41) are operated by the expansion of a high-pressure gas so as to rotate the rotors (31) through the vanes (42) and a low-pressure gas is expanded due to a pressure drop of the high-pressure gas so as to rotate the rotors (31) through the vanes (42), whereas, when it functions as a compressor, a low-pressure compressed air is supplied to a piston (41) side by the rotation of the rotors (31) through the vanes (42) and the pistons (42) are operated by the vanes (42) so as to change the low-pressure air to the high-pressure air, whereby the rotary fluid machinery having an expansion function and a compression function as well as those advantages held by piston and vane types of rotary fluid machinery can be provided.
摘要:
An internal combustion engine, wherein a combustion chamber and a heat insulating layer are provided in a cylinder head on one side and the other side across a partition wall, respectively, a cooling line is provided in the partition wall in a plurality of areas where heat loads are different from each other, and the flow rate of cooling medium is set so as to be higher in the cooling line located in the area where heat load is large than in the cooling line located in the area where heat load is small, whereby an increased temperature of exhaust gases can be achieved by holding the combustion chamber at a high temperature.
摘要:
Heat exchangers, comprising first heat exchangers (H4, H3, H2) and a second heat exchanger (H1), wherein the first exchangers (H4, H3, H2) are disposed in exhaust ports (18) provided for the exhaust passages (33) of a multiple cylinder internal combustion engine, in a pre-catalytic device (34), and on the downstream side of a main catalytic device (35), respectively, and positioned independently of each other for each exhaust passage (33) and the second heat exchanger (H1) is disposed at a merged portion of the exhaust passages (33), whereby, because the first heat exchangers (H4, H3, H2) are disposed on the upstream side of the exhaust passages (33), a high heat exchanging efficiency can be obtained with hot exhaust gas and the output of the internal combustion engine can be prevented from being lowered by avoiding the occurrence of interference of exhaust gases and, because the second heat exchanger (H1) is disposed at the collecting portion of the exhaust passages (33), the heat exchanging efficiency can be increased by acting the pulsation-free exhaust gases produced by the merge.
摘要:
An engine block, comprising a cylinder head, a plurality of crankshaft bearing caps, a cylinder block disposed between the cylinder head and the bearing caps, a plurality of screw members for connecting the cylinder head to the bearing caps, and a plurality of columnar bodies provided between the cylinder head and the bearing caps to receive the tightening force of the screw members, wherein the weight of the cylinder block can be reduced by a remarkable reduction in required strength thereof.