摘要:
An HT and an LT cooling water, the LT cooling water being at a lower temperature than the HT cooling water, circulate in HT and LT cooling water flows channels (34, 35, 12 and 14), respectively. A controller (80) controls to set the temperature of the LT cooling water lower in a case where an operating point of an engine (2) lies in a particular region in an operational region of the engine (2), the particular region including a region in which the load is high and the engine speed is low, than in a case where the operating point lies in an operational region other than the particular region. Furthermore, the controller (80) narrows the particular region in a direction toward higher loads in a case where the temperature of the HT cooling water is lower than a predetermined temperature.
摘要:
A multi-stage exhaust turbocharger has parallel high pressure stages (30, 40), and a single low pressure stage (60) in series. The low pressure stage (60) has a divided scroll turbine wheel 62 with each scroll fed independently from the respective turbines of the high pressure stage. Valves V1, V2, V3 determine flow paths to the respective turbines to ensure series sequential operation.
摘要:
The present invention relates to an air intake system (1) for a supercharged combustion engine (3), said air intake system (1) comprising an external-air inlet (2) and a charge air cooler (9), said air intake system (1) further comprising a bypass leg (13) bypassing the charge air cooler (9) between a tapping (101) situated upstream of said charge air cooler (9) and a charge air outlet (103) connected to the combustion engine (3), said bypass leg (13) comprising within it a phase-change material (15), said air intake system (1) also comprising a device (17) for regulating and redirecting the charge air at the tapping (101).
摘要:
The invention relates to an engine arrangement according to the preamble of claim 1 comprising a cylinder head and a flange arranged upstream of the cylinder head. The aim of the invention is to improve an engine arrangement according to the preamble of claim 1 in particular with regard to flow such that the flow rate and/or the swirl are increased in order to improve the efficiency of the engine. In an engine arrangement (10) according to the invention comprising a cylinder head (14) and a flange (20) arranged upstream of the cylinder head, a first air guide passage (16) and at least one second air guide passage (18) are formed for each cylinder (38) in the cylinder head (14), which air guide passages correspond to the air guide passages (24) formed in the charge-air cooler. Furthermore, at least one air guide passage (22, 30) is formed in the flange (20), the boundary wall of which, in the connection region (28) to the cylinder head (14), is adapted to the first air guide passage (16) or to the second air guide passage (18) such that said wall runs with a constant course to the cylinder head (14), at least over one part of the periphery in a connection region (26, 28).
摘要:
The invention concerns a seal (5) for sealing off the gap between a heat exchanger (1) and the inside wall of a groove (7) in a fluid channel for accommodating said heat exchanger [1], the seal (5) comprising at least one fixing member (51, 52) for fixing the seal (5) on at least part of the circumference of the heat exchanger (1) and at least a first (53) and second lip (54) adapted to contact opposite sides (71, 72) of the groove (7) to thereby seal off the gap between the heat exchanger (1) and the fluid channel and to fix said at least part of the circumference of the heat exchanger (1) inside the groove (7).