Distributor having two channels and a single motor operating in a single direction

Patent metadata

Field	Value
Publication number	US-9938938-B2
Application number	US-201214366951-A
Country	US
Kind code	B2
Filing date	Dec 11, 2012
Priority date	Dec 21, 2011
Publication date	Apr 10, 2018
Grant date	Apr 10, 2018

Abstract

The invention relates to a double distributor for distributing the intake fluid of an internal combustion engine and controlling the temperature thereof, comprising a body ( 1 ) in which first and second channels for circulating said intake fluid are arranged, first ( 10 ) and second ( 20 ) shutters being positioned in said channels in order to distribute the flow passing through said channels, said distributor also including a motor ( 9 ) for actuating said shutters and kinematics simultaneously actuating the first and second shutters according to a movement law in response to an actuation of said motor, said kinematics comprising an inactive position in which said shutters are positioned when no force is supplied by said actuator motor, characterized in that said kinematics are configured such that said shutters can strictly follow said movement law when actuated by the motor from said inactive position without returning to said position.

First claim

The invention claimed is:

1. A double distributor for distributing the intake fluid of an internal combustion engine and controlling the temperature thereof, the distributor comprising:
a body in which a first and a second channel for circulating said intake fluid are arranged, first and second shutters being respectively positioned in said channels in order to distribute the flow passing through said channels; and
a motor for actuating said shutters and kinematics simultaneously actuating the first shutter and the second shutter according to a movement law in response to an actuation of said motor, said kinematics comprising an inactive position in which said shutters are positioned when no force is provided by said actuating motor,
wherein said kinematics are configured such that said shutters can follow the whole of said movement law under the action of the motor from said inactive position without returning to said position.

2. The double distributor as claimed in claim 1 , the first and the second shutter being rotatable.

3. The double distributor as claimed in claim 1 , wherein the kinematics are configured to ensure, in response to a first control of the actuating motor, a proportional distribution on the two outlet channels by simultaneous rotation of the two shutters, an increase in the flow on one of the outlet channels being associated with a decrease in the flow on the other, during a first phase of said movement law.

4. The double distributor as claimed in claim 3 , wherein the kinematics are configured to ensure a constant total flow during said proportional distribution.

5. The double distributor as claimed in claim 3 , wherein the kinematics are configured to ensure, in response to a second control of the actuating motor consecutive to a closure of said first shutter and an opening of said second shutter resulting from said first control, the distribution of the flow passing through the second outlet channel by a rotation of the second shutter, the first shutter remaining closed, during a second phase of said movement law.

6. The double distributor as claimed in claim 5 , wherein the kinematics are configured to bring the second shutter, in response to the second control, into a fully closed position corresponding to said shutter being reversed compared to its closed position when in the inactive position.

7. The double distributor as claimed in claim 5 , wherein the kinematics are configured to position the shutters in opposition to the action of two return springs, a first spring remaining prestressed during the first phase of the movement law in order to transmit the force of the motor to a first of said shutters and being subjected to a stress, under the action of said motor, during the second phase of said movement law, the second spring being subjected to a stress, under the action of said motor, at least during the first of said movement law.

8. The double distributor as claimed in claim 7 , wherein the actuating motor drives a first toothed wheel bearing a drive finger configured to rotate the first shutter, via said first return spring.

9. The double distributor as claimed in claim 8 , wherein one of the ends of said first return spring is fixed to a first plate rigidly connected to the shaft of the corresponding shutter, the other end being fixed to said first toothed wheel.

10. The double distributor as claimed in claim 9 , wherein the actuating motor drives, via a drive pinion, the first toothed wheel and a second toothed wheel meshing with one another, said first plate comprising a dead range in its cooperation with the drive finger and said dead range corresponding to the actuation of only the second shutter by the actuating motor, the first shutter remaining immobile.

11. An air intake module for an internal combustion engine comprising a double distributor as claimed in claim 1 .

12. The module as claimed in claim 11 , the first circulation channel of the distributor being connected to a cooler of the intake module while the second channel short-circuits this cooler.

Assignees

• Valeo Systemes De Controle Moteur

Inventors

• Lallemant Mathieu
• Girardon Franck
• Lebrasseur Patrick

Classifications

• F02M26/26

  characterised by details of the bypass valve · CPC title

• Y02T10/146

  Cross-Sectional Technologies · mapped topic

• F02M35/10091 Primary

  characterised by details of intake ducts: shapes; connections; arrangements (ducts within or on the plenum chamber F02M35/10039) · CPC title

• F02D2009/0277

  Fail-safe mechanisms, e.g. with limp-home feature, to close throttle if actuator fails, or if control cable sticks or breaks · CPC title

• F02B29/0418

  the intake air cooler having a bypass or multiple flow paths within the heat exchanger to vary the effective heat transfer surface · CPC title