摘要:
The present invention relates to a fluid machine. A pump integrated expander (29A) includes a pump unit (60) and an expansion unit (50). In the pump unit (60), a casing member (65) supports a gear pump (61), a rotating shaft (28) and a driven crank mechanism (81). In the expansion unit (50), a casing including a main body (51a) and a casing member (54) supports an expander (23) including a fixed scroll (51) and an orbiting scroll (52). The pump integrated expander (29A) is divided into the pump unit (60) and the expansion unit (50) by separating at the fitted portion of a tubular portion (65c) on the pump unit (60) side and a smaller inner diameter portion (54b) on the expansion unit (50) side and by pulling the eccentric bush (83) out of a drive bearing (56).
摘要:
Either one of an inner rotor (16) and an outer rotor (18) of a motor-generator (12) is coupled to an expander (48) of a Rankine circuit (40), and the other rotor is coupled to a rotary shaft (7) of an internal combustion engine (2) .
摘要:
A system for utilizing waste heat from a vehicle has a Rankine circuit, and the Rankine circuit includes a fluid machine. A generating unit of the fluid machine has a third rotating body that is disposed coaxially with a first rotating body of a pump unit and a second rotating body of an expansion unit. The fluid machine has a drive shaft that is integrally connected at least to the first rotating body, among the first, second and third rotating bodies, and a power transmission unit that is connected to the drive shaft and transmits external power to the drive shaft.
摘要:
A fluid machine (14, 102, 108) includes a plurality of fluid units (16, 20) each having a rotator (40, 66) and configured to let in and out a working fluid as the rotator (40, 66) rotates, and a drive shaft (72) to which the rotators (40, 66) of the fluid units (16, 20) are coupled, wherein an Oldham coupling (85) is arranged at a shaft section of the drive shaft (72) located between the rotators (40, 66).
摘要:
[Purpose] To provide a fluid machine, and a refrigerant circuit and a waste heat utilization device using the fluid machine, whereby the size and cost of a Rankine circuit and thus of the waste heat utilization device can be reduced while preventing an abnormally high pressure from being developed in the Rankine circuit and also improving starting performance of the Rankine circuit. [Means for Attaining the Purpose] A waste heat utilization device (1) is provided with a Rankine circuit (4) including a fluid machine (10). The fluid machine (10) includes, inside a housing thereof, a drive section (22) configured to be driven by a working fluid introduced from an inlet port (33) and to discharge the working fluid to an outlet port (45), a communication passage (102) allowing the working fluid to flow from the inlet port into the drive section, a bypass passage (104) allowing the working fluid to flow from the inlet port to the outlet port while bypassing the drive section, and a valve mechanism (106, 112, 124) configured to block inflow of the working fluid from the inlet port and to allow the inlet port to be connected selectively to the communication passage and the bypass passage.
摘要:
Summary Purpose: To provide a fluid machine, the production efficiency and maintenance characteristics of which can be improved while performance is ensured. Means to attain the purpose: A fluid machine (14, 102, 108) has a plurality of fluid units (16, 20) that include rotating bodies (40, 66) and suck/discharge a working fluid along with the rotation of the rotating bodies, and a drive shaft (72) connected with the rotating bodies of the fluid units; and an Oldham's coupling (85) is mounted on a shaft portion between each two adjacent rotating bodies of the drive shaft.