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Explanation: The oil cooling system probably has a temperature-responsive bypass valve. The path to the aluminum cooler is closed off when not needed. https://www.google.com/patents/US3913831
-------------------------------------------------- Note added at 7 hrs (2017-08-17 18:10:12 GMT) --------------------------------------------------
Perhaps, 'When the temp. of the circulating oil falls under 80, the thermostat is activated, the oil is redirected, and the Alu oil cooler is bypassed.'
-------------------------------------------------- Note added at 21 hrs (2017-08-18 07:57:31 GMT) --------------------------------------------------
Perhaps 'the thermostat is triggered', as suggested by Lancashireman, is better. A literal translation will not work. kurzgeschlossen = short-closed; umgangen = bypassed
-------------------------------------------------- Note added at 1 day4 mins (2017-08-18 10:43:10 GMT) --------------------------------------------------
If you can stray from the text, maybe use the language from here: 'Coolant circuit of an internal-combustion engine' https://www.google.it/patents/US5836269
bypass (1) mot (gen) - Bypass, m; (2) (mot.brake) -> relief valve; (3) mot.eng.2s) - Nebenschluss, m bypass vt (techn.gen) - umgehen, vt bypass filter (mot.eng). partial flow filter - Nebenstromfilter, m (with this type of filtering system, only part of the total lubricant, approx. 10-20%, is routed through the ~ ...) by-pass valve (mot.charg) (supercharger; in exhaust line or air intake duct) -> blow-off valve bypass valve (1) (tech.gen) - Umleitventil, n; Bypass-Ventil, n bypass valve (2) (mot.charg) (in exhaust line of turbocharger system) -> wastegate (Schmitt, Fachwörterbuch der Kfz-Technik)
Thanks. BTW, surprise, surprise, there's a Wiki link on car radiators [the "bypass flow" in the preceding sentence is OK because it's a noun modifier]: "Engine coolant is directed by the thermostat to the inlet of the circulating pump and is returned directly to the engine, bypassing the radiator." https://en.wikipedia.org/wiki/Radiator_(engine_cooling)
I think your "redirect" or my alternative, "reroute," works well.
"Sounds like someone was trying to 'verb' a noun." It's not great in German, but it works better than in English. I suggested to think of it as "hot-wire" because that is basically what's happening and why Lancashireman's statement still stands: "'the Ölkreislauf (oil circulation) was bypassed', which is clearly nonsense"
In other words: If you hot-wire a car (read: oil circuit), you're bypassing the ignition system (read: cooling unit). You're not bypassing the car--well, you better be doing that if it's mine!
I meant to address this, too: 'I used to watch a lot of Star Trek and all they ever did was "bypassing" something, but they bypassed affected systems, not circuits, loops or such.' Another wise person once referenced Star Trek: (see discussion>pit vs. cavity) http://www.proz.com/kudoz/french_to_english/nuclear_eng_sci/... I absolutely agree with your statement. Even in Electronics, which I studied in Uni, components and systems are bypassed. A current or circuit cannot be bypassed; it can be divided, redirected, etc. http://www.williamson-labs.com/480_byp.htmhttp://www.gmtuners.com/fiero/transbypass.htm Components to create a bypass (Kurzschluss) can be added during construction, but the source text is clearly describing the operation. Also, I have not seen any 'kurzschließen' that means 'to bypass'. Sounds like someone was trying to 'verb' a noun. The 'kurzgeschlossen' here is probably simply 'enclosed in a shorter circuit' (what is made when a car is hot-wired). So, in plain English: When under 80 deg, the oil circulating is cycled in a circuit that does not include the aluminum oil cooler.
"I was wondering why you didn't like my answer" - Where did I say this? I didn't. My bit about "second one" referred to your patent example, nothing more. Otherwise, I wouldn't have said: "This is basically what I posted in the discussion box."
I was wondering why you didn't like my answer... I have not been talking about a separate "loop." When the path to the Alu cooler is closed off, the oil still flows, just in a shorter circuit (the fast track). Repost: http://www.flat4.de/oelkreis.htm
I was waiting for someone to bring up "aluminium/aluminum." Also, pretentious Chemistry students say "aluminium" :) I want to believe you, but https://www.google.com/patents/US6677751 says: "16. The apparatus of claim 1, wherein one of said first and said second coolant loops cools the NMR receiver resonator and an other one of said first and said second cooling loops performs no substantial cooling function. 17. The apparatus of claim 16, further comprising a second probe short-circuit disposed between said second probe feed and said second probe return for short-circuiting said second coolant loop in said probe head. 18. The apparatus of claim 1, wherein said cooling device comprises a two-step cryo-cooler having a first heat exchanger for said first coolant loop and a second heat exchanger for said second coolant loop. head." Bruker is a big deal international NMR machine manufacturer.
I think the second one is off; it's one of the main reasons why "bypass" doesn't work.
I used to watch a lot of Star Trek and all they ever did was "bypassing" something, but they bypassed affected systems, not circuits, loops or such. That makes no sense or may imply there's a second, entirely separate "circuit" installed for precisely that reason. That may be an emergency fail safe, but it isn't called a "bypass."
In this context, there really isn't a second "loop" anyway. It's just a "hot-wired" connection, as you might say with cars. You could use "reroute" instead of "redirected":
Oil at temperatures below 80 °C is rerouted by the thermostat, bypassing the aluminum cooler.
Side notes It's "aluminium" in BrE; Celsius spacing as per NIST guidelines, but others may apply.
This is also not bad English: "A coolant circuit of this type is described in German Patent Document DE 37 18 697 A1. In this overall coolant circuit, a main circuit and a short circuit are constructed. The main and short circuits are switched as a function of the operating temperature of the coolant by a thermostatic valve. The short circuit is switched below a given opening temperature of the thermostatic valve, that is, during a cold start and a warm-up phase of the internal-combustion engine." https://www.google.it/patents/US5836269
Thanks for the links, Björn. I was not clear on how the thermostat/valve works. This is a more idiomatic English construct: "Bypass mode: When the coolant inlet temperature is less than 85°C (185°F) the circulating thermostat is closed. The coolant circulates in the engine and coolant can flow through the vehicle heating system." (PDF) https://ddcsn-ddc.freightliner.com/cps/rde/xbcr/ddcsn/4103-1...
Quote: "Wenn das Öl jedoch noch kalt ist, dann baut sich ein höherer Druck (geringe Ölviskosität) vor dem Öldruckventil (3) auf, so daß der Regelkolben gegen die Federkraft gedrückt wird und das Öl direkt ohne über den Kühler zu fließen an die Schmierstellen gelangen kann."
There's nothing wrong with the German, though; "kurzschließen" means "kürzerer Kreislauf" here (which is not "bypass") and "umgangen" is bypass.
For comparison: "When an engine is started, a fluid control thermostat will allow only enough oil to pass through the cooler to keep it flowing and avoid cold oil shock. [...] As engine temperatures rise, the fluid control thermostat continues to open until full flow is achieved, usually around 180 degrees F." http://www.hotrod.com/articles/tips-installing-engine-oil-co...
"What the thermostat does is keep the oil cooler closed, and out of the loop, so that oil can be quickly brought up to temperature. Then the cooler is variably opened to maintain proper oil temperatures." https://www.enginebasics.com/Engine Basics Root Folder/oil c...
There seems to be confusion on what bypassing is. It does not mean 'passed by'. More like 'flowing past' (ignoring). When under 80 degrees, the circulating oil bypasses the cooling unit. When over 80 deg or similar, it passes through the cooling unit. https://www.collinsdictionary.com/dictionary/english/bypass
I wonder what term has been used for "umgangen". I would use "circumvent" or similar.
E.g. "The standard oil circuit was (or is) by-passed by the thermostat below a temperature of 80 °C and the oil radiator (oil cooler) has been (or is) circumvented".
Note: Even the German text implies "bypassing the circuit", this isn’t correct. Only the radiator is by-passed. So you may replace "oil circuit" by "radiator" as well.
You appear to have endorsed: "the Ölkreislauf (oil circulation) was bypassed", which is clearly nonsense. Hard to tell, however, as Herr Gleim has not proposed a translation as such.
As you are talking about the oil circuit, I suggest you use bypass. Short circuits, in my experience, come up regarding electrical systems and, while the meaning is the same in the broad sense, I would still advocate for bypass.
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Answers
7 hrs confidence:
Über ein Thermostat wurde der Ölkreislauf ... kurzgeschlossen
A thermostat shuts off the flow/circulation of oil ...
Über ein Thermostat wurde der Ölkreislauf unterhalb von 80° C kurzgeschlossen und der Aluminium-Ölkühler umgangen At a temperature of under 80°C, a thermostat shuts off the flow of oil and the aluminium cooler is bypassed.
Definitely not short-circuit, for the electrifying reason stated by jccantrell. In fact, best not to mention circuit of any kind (=circulation).
'wurde' (past tense) presumably because this is how it was designed/constructed, but present tense in EN because it refers to continuing functionality.
Lancashireman United Kingdom Local time: 01:59 Native speaker of: English PRO pts in category: 395
Explanation: The oil cooling system probably has a temperature-responsive bypass valve. The path to the aluminum cooler is closed off when not needed. https://www.google.com/patents/US3913831
-------------------------------------------------- Note added at 7 hrs (2017-08-17 18:10:12 GMT) --------------------------------------------------
Perhaps, 'When the temp. of the circulating oil falls under 80, the thermostat is activated, the oil is redirected, and the Alu oil cooler is bypassed.'
-------------------------------------------------- Note added at 21 hrs (2017-08-18 07:57:31 GMT) --------------------------------------------------
Perhaps 'the thermostat is triggered', as suggested by Lancashireman, is better. A literal translation will not work. kurzgeschlossen = short-closed; umgangen = bypassed
-------------------------------------------------- Note added at 1 day4 mins (2017-08-18 10:43:10 GMT) --------------------------------------------------
If you can stray from the text, maybe use the language from here: 'Coolant circuit of an internal-combustion engine' https://www.google.it/patents/US5836269
Herbmione Granger Germany Local time: 02:59 Native speaker of: English PRO pts in category: 8