Motor vehicle

A technology of motor vehicles and internal combustion engines, applied in the direction of machines/engines, mechanical equipment, engine components, etc.

Active Publication Date: 2019-05-24
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the motor vehicles and their cooling pumps known in the prior art have the disadvantage that they generally operate at a continuously high power and are controlled only by means of thermostatic valves

Method used

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Embodiment Construction

[0019] according to Figure 1 to Figure 3 , the motor vehicle 12 according to the invention has an internal combustion engine 13 , a radiator 14 , a heat exchanger 15 of an air-conditioning system (not shown) and a coolant pump 1 . The electric coolant pump 1 is formed to deliver coolant 2 . Also provided is a valve device 6 arranged separately from the coolant pump 1 , which is pressure-controlled on the intake side and has at least one first coolant inlet 3 , 3 ′, at least one second coolant inlet 4 , 4 ′ and cooling The coolant outlet 5 is connected to the inlet 16 of the coolant pump 1 . In this case, controlled by pressure on the intake side is understood to mean that at the valve arrangement 6 the coolant inlets 3 , 3 ′, 4 , 4 ′ can be opened / closed via pressure-adjustable valve bodies 7 .

[0020] In this case, the coolant pump 1 is adjustable between a plurality of operating points, in particular between a first, second, third and fourth operating point. The valve a...

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Abstract

The invention relates to a motor vehicle (12) comprising an internal combustion engine (13), a radiator (14), a heat exchanger (15), a coolant pump (1) and a pressure-controlled valve device (6) arranged separately on the inlet side and comprising at least one first coolant inlet (3, 3') and at least one second coolant (4, 4') and a coolant outlet (5') which is connected to the inlet (16) of the coolant pump (1). The valve device (6) is designed to, in accordance with a selected operating point for the coolant pump (1) and also the pressure (p) in the coolant (2), open and close at least one first or one second coolant inlet (3, 3', 4, 4') or simultaneously open at least one first and second coolant inlet (3, 3', 4, 4'). The first coolant inlet (3, 3') of the valve device (6) and a coolantoutlet (5) of the coolant pump (1) are connected to the internal combustion engine (13) when a second coolant inlet (4, 4') of the valve device (6) is connected to the radiator (14).

Description

technical field [0001] The invention relates to a motor vehicle with an internal combustion engine and a coolant pump. Background technique [0002] In modern motor vehicles, coolant pumps are often used to cool the internal combustion engine, where the cooling power is usually controlled via a thermostatic valve. Such a thermostatic valve can open a bypass around the radiator, for example when only low cooling power is required. Such thermostatic valves usually have an expansion element that enables a relatively simple but slow temperature-dependent control. [0003] However, the motor vehicles and their cooling pumps known in the prior art have the disadvantage that they generally operate at a continuously high power and are controlled only by means of thermostatic valves. Therefore, relatively high energy is required to operate the coolant pump. Contents of the invention [0004] Accordingly, the present invention addresses this problem by providing an improved or at...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F01P7/14F16K31/122F04D15/00F01P5/12F01P7/16F01P5/10
CPCF01P5/10F01P7/14F01P7/162F01P7/164F01P2005/125F01P2007/146F04D15/0016F04D15/0022F01P5/12F01P7/16F01P7/161F01P11/16F01P2025/50F04D15/00F16K31/1221
Inventor斯文-尤里·鲍尔米夏埃尔·鲍曼安德烈亚斯·格吕纳安德烈娅·托伊布纳
OwnerMAHLE INT GMBH