摘要:
An HMT apparatus ( T ) is mounted on a vehicle ( A ). In the HMT apparatus ( T ), input rotational force from an engine ( 13 ) is once divided into two systems which are then transmitted by an MT device ( 23 ) and by an HST device ( 24 ) respectively and are re-synthesized for transfer toward wheels ( 12 ) and ( 16 ). The HMT apparatus ( T ) is disposed on the vehicle-body right side of the engine ( 13 ) which is sideways-mounted on a vehicle body ( 1 ), and its input and output shafts ( 25 ) and ( 26 ) are disposed in parallel with a crank shaft ( 13a ) of the engine ( 13 ) and are disposed to run parallel with each other. The input shaft ( 25 ) is coupled directly to the crank shaft ( 13a ) and an input gear ( 27 ) of the MT device ( 23 ) is mounted on the input shaft ( 25 ), and a hydraulic piston pump ( 30 ) of the HST device ( 24 ) is connected to the right side end of the input shaft ( 25 ). A planetary gear mechanism ( 28 ) of the MT device ( 23 ) is connected to the right side end of the output shaft ( 26 ), and a hydraulic piston motor ( 31 ) of the HST device ( 24 ) is connected to the right side of the planetary gear mechanism ( 28 ). By virtue of such arrangement, it is possible to improve the degree of freedom of the layout of each component of the HMT apparatus ( T ), to reduce axial dimensions, and further to provide improvement in the cooling property and maintenance property of the section of the HST device ( 24 ). The casing ( 81 ) of the HST is a separate structure of the HMT casing ( 80 ) and this makes it possible to easily remove it from the HMT apparatus ( T ).
摘要:
There is provided a circulation line (39) for circulating pressurized oil from an accumulator (11) into a housing (15) of a steering valve (14) . An orifice joint (41) is provided along the path of the circulation line (39). The orifice joint (41) is removably mounted on the housing (15) of the steering valve (14) from outside. An orifice portion (42) of the orifice joint (41) applies a throttling function to the circulating oil liquid whereby a frictional heat is generated therein. The oil liquid in a warm state flows through a communication passage (21), passages in a spool valve (16), and a low pressure side passage (18B), thus enabling the steering valve (14) to be always in a warm state.
摘要:
An HMT apparatus ( T ) is mounted on a vehicle ( A ). In the HMT apparatus ( T ), input rotational force from an engine ( 13 ) is once divided into two systems which are then transmitted by an MT device ( 23 ) and by an HST device ( 24 ) respectively and are re-synthesized for transfer toward wheels ( 12 ) and ( 16 ). The HMT apparatus ( T ) is disposed on the vehicle-body right side of the engine ( 13 ) which is sideways-mounted on a vehicle body ( 1 ), and its input and output shafts ( 25 ) and ( 26 ) are disposed in parallel with a crank shaft ( 13a ) of the engine ( 13 ) and are disposed to run parallel with each other. The input shaft ( 25 ) is coupled directly to the crank shaft ( 13a ) and an input gear ( 27 ) of the MT device ( 23 ) is mounted on the input shaft ( 25 ), and a hydraulic piston pump ( 30 ) of the HST device ( 24 ) is connected to the right side end of the input shaft ( 25 ). A planetary gear mechanism ( 28 ) of the MT device ( 23 ) is connected to the right side end of the output shaft ( 26 ), and a hydraulic piston motor ( 31 ) of the HST device ( 24 ) is connected to the right side of the planetary gear mechanism ( 28 ). By virtue of such arrangement, it is possible to improve the degree of freedom of the layout of each component of the HMT apparatus ( T ), to reduce axial dimensions, and further to provide improvement in the cooling property and maintenance property of the section of the HST device ( 24 ). The casing ( 81 ) of the HST is a separate structure of the HMT casing ( 80 ) and this makes it possible to easily remove it from the HMT apparatus ( T ).
摘要:
A vehicle (A) has an HMT (T) mounted thereon that once divides an input rotating force from an engine (13) into two systems and transmits them respectively to an MT (23) and an HST (24), and then recombines them and delivers the same to wheels (12, 16). The HMT (T) is disposed on the vehicle body right-hand side of an engine (13) transversely mounted on the vehicle body (1), and an input shaft (25) and an output shaft (26) are disposed parallel with the crank shaft (13a) of the engine (13) and side by side with each other. The input shaft (25) is connected directly to the crank shaft (13a), and the input gear (27) of the MT (23) is disposed on the shaft, while the hydraulic piston pump (30) of the HST (24) is connected to the vehicle body right-hand side end of the input shaft (25). The planetary gear mechanism (28) of the MT (23) is connected to the vehicle body right-hand side end of the output shaft (26), and connected to the vehicle body right-hand side thereof is the hydraulic piston motor (31) of the HST (24). This arrangement improves the degree of freedom of layout of the components in the HMT (T), reduces the axial dimension, and improves the coolability and maintainability of the HST (24) portion.
摘要:
An HMT apparatus (T) is mounted on a vehicle (A) . In the HMT apparatus (T) , input rotational force from an engine (13) is once divided into two systems which are then transmitted by an MT device (23) and by an HST device (24) respectively and are re-synthesized for transfer toward wheels (12) and (16) . The HMT apparatus (T) is disposed on the vehicle-body right side of the engine (13) which is sideways-mounted on a vehicle body (1) , and its input and output shafts (25) and (26) are disposed in parallel with a crank shaft (13a) of the engine (13) and are disposed to run parallel with each other. The input shaft (25) is coupled directly to the crank shaft (13a) and an input gear (27) of the MT device (23) is mounted on the input shaft (25) , and a hydraulic piston pump (30) of the HST device (24) is connected to the right side end of the input shaft (25) . A planetary gear mechanism (28) of the MT device (23) is connected to the right side end of the output shaft (26) , and a hydraulic piston motor (31) of the HST device (24) is connected to the right side of the planetary gear mechanism (28) . By virtue of such arrangement, it is possible to improve the degree of freedom of the layout of each component of the HMT apparatus (T) , to reduce axial dimensions, and further to provide improvement in the cooling property and maintenance property of the section of the HST device (24) .
摘要:
In a power unit comprising an engine (13) and an HST (24) which are formed into an integral body, a lubricating oil for use in the engine and an operating oil of the HST (24) are commonized. After being cooled, the common oil is fed from the side of the engine (13) to the HST (24) . Such arrangement suppresses the drop in viscosity of the common oil and prevents the drop in efficiency and the occurrence of seizing on the side of the HST (24) .
摘要:
A cam motor device (A) comprises a plurality of cylinders (5, 5, ...) provided in a cylinder block (2) adapted to rotate together with an output shaft (10), and arranged radially in a direction perpendicular to a rotating axis (X), pistons (6) received in the respective cylinders and adapted to be reciprocatingly actuated by a working oil delivered from a distributing valve (7) to rotate the output shaft, and a change-over valve (9) for selectively performing switching connection of the respective cylinders to a working oil supply passage (81) and a discharge passage (82) through the distributing valve. When the change-over valve is at a low speed position, the working oil is supplied to and discharged from all the cylinders, and when the change-over valve is switched to a high speed position, the working oil is supplied to and discharged from a half of the cylinders and a pressure oil is supplied to the remaining half of the cylinders from a charge pump (16).
摘要:
A vehicle (A) has an HMT (T) mounted thereon that once divides an input rotating force from an engine (13) into two systems and transmits them respectively to an MT (23) and an HST (24), and then recombines them and delivers the same to wheels (12, 16). The HMT (T) is disposed on the vehicle body right-hand side of an engine (13) transversely mounted on the vehicle body (1), and an input shaft (25) and an output shaft (26) are disposed parallel with the crank shaft (13a) of the engine (13) and side by side with each other. The input shaft (25) is connected directly to the crank shaft (13a), and the input gear (27) of the MT (23) is disposed on the shaft, while the hydraulic piston pump (30) of the HST (24) is connected to the vehicle body right-hand side end of the input shaft (25). The planetary gear mechanism (28) of the MT (23) is connected to the vehicle body right-hand side end of the output shaft (26), and connected to the vehicle body right-hand side thereof is the hydraulic piston motor (31) of the HST (24). This arrangement improves the degree of freedom of layout of the components in the HMT (T), reduces the axial dimension, and improves the coolability and maintainability of the HST (24) portion.
摘要:
In a power unit comprising an engine (13) and an HST (24) which are formed into an integral body, a lubricating oil for use in the engine and an operating oil of the HST (24) are commonized. After being cooled, the common oil is fed from the side of the engine (13) to the HST (24). Such arrangement suppresses the drop in viscosity of the common oil and prevents the drop in efficiency and the occurrence of seizing on the side of the HST (24).